Connecting 4k monitor to Macbook Pro retina 2012 mid

I tried to connect to Macbook Pro retina 2012 mid 15 inch 2.7GHZ model. Initially I connected using HDMI to 3840x2160 at 30 hz. I casually changed the resolution to 1080 p from scaled option. Now I no more get the option of scaling to 4k. I am unsure what is the issue over it. When I log into my windows. I am able to log in with my original 4k resolution in 30 HZ. Any guidance would be really great.
2) I read a few forums regarding 4k with 60hz external monitor connection for macbook pro retina 2012 mid. But I couldn't get a clear solution whether it is possible or not. Would be great if someone can show lights on this too.

jcannizzo wrote:
1- does Apple ever do exchanges for newly released products? I bought my MacBook in jan they came out with new in mar.
If you purchased the product from Apple, not a third party, you have 14 days from the date of purchase to return it for a refund or exchange. You are well past that.
2- if and when Apple comes out with a 4k or 5k thunderbolt display, will it be backwards compatible with my MacBook sich that I can't get the resolutions and 60mhz?
I do not have an answer to that and the Terms of Use for these forums discourages from speculating what Apple may or may not do in the future. Having said that, from a practical business standpoint, backwards compatibility would be a sensible approach. It has been done so in many areas in the past.
Ciao.

Similar Messages

Connecting 2 monitors to macbook pro retina

Can I connect two separate monitors to my MacBook Pro Retina - one through HDMI and the other through Thunderbolt to HDMI or DVI

Yes, it is possible to run 3 monitors at once on the Retina MacBook Pro (2 connected over Thunderbolt and one over HDMI).
Displays used in picture below:
Retina on laptop @ “best for Retina”
iMac used as a display @ 2560 x 1440 via Thunderbolt
iMac used as a display @ 2560 x 1440 via Thunderbolt/DisplayPort
LG monitor @ 1920 x 1200 via HDMI
Hope this answers your question.
http://apple.stackexchange.com/questions/53759/how-many-external-displays-can-i- power-with-the-15-retina-macbook-pro

Macbook pro retina 2012 mid year stuck on grey screen

Hi everyone.
I've just update for the lastest mac os x mountain lion update, when half way the progress and it goes stucked. All the function are unable to function, so i've force shut it down. After mac shutted down and i tried to boots it back it stuck on grey screen which below apple logo forever loading icon. i've tried Reset the PRAM, but it still not working for me. Also, i tried when when start up hold with cmd + r to reinstall the os x , but it just won't let me to reinstall it , it wrote you can't upgrade this version of OS X because a newer version is installed?
Help please! need a solution that wont delete all my files at the same time

Take each of these steps that you haven't already tried. Stop when the problem is resolved.
Step 1
The first step in dealing with a boot failure is to secure your data. If you want to preserve the contents of the startup drive, and you don't already have at least one current backup, you must try to back up now, before you do anything else. It may or may not be possible. If you don't care about the data that has changed since your last backup, you can skip this step.
There are several ways to back up a Mac that is unable to boot. You need an external hard drive to hold the backup data.
a. Boot into the Recovery partition, or from a local Time Machine backup volume (option key at startup.) When the OS X Utilities screen appears, launch Disk Utility and follow the instructions in this support article, under “Instructions for backing up to an external hard disk via Disk Utility.”
b. If you have access to a working Mac, and both it and the non-working Mac have FireWire or Thunderbolt ports, boot the non-working Mac in target disk mode. Use the working Mac to copy the data to another drive. This technique won't work with USB, Ethernet, Wi-Fi, or Bluetooth.
c. If the internal drive of the non-working Mac is user-replaceable, remove it and mount it in an external enclosure or drive dock. Use another Mac to copy the data.
Step 2
Press and hold the power button until the power shuts off. Disconnect all wired peripherals except those needed to boot, and remove all aftermarket expansion cards. Use a different keyboard and/or mouse, if those devices are wired. If you can boot now, one of the devices you disconnected, or a combination of them, is causing the problem. Finding out which one is a process of elimination.
If you've booted from an external storage device, make sure that your internal boot volume is selected in the Startup Disk pane of System Preferences.
Step 3
Boot in safe mode. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Post for further instructions.
Safe mode is much slower to boot and run than normal, and some things won’t work at all, including wireless networking on certain Macs.
The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
When you boot in safe mode, it's normal to see a dark gray progress bar on a light gray background. If the progress bar gets stuck for more than a few minutes, or if the system shuts down automatically while the progress bar is displayed, your boot volume is corrupt and the drive is probably malfunctioning. In that case, go to Step 5.
If you can boot and log in now, empty the Trash, and then open the Finder Info window on your boot volume ("Macintosh HD," unless you gave it a different name.) Check that you have at least 9 GB of available space, as shown in the window. If you don't, copy as many files as necessary to another volume (not another folder on the same volume) and delete the originals. Deletion isn't complete until you empty the Trash again. Do this until the available space is more than 9 GB. Then reboot as usual (i.e., not in safe mode.)
If the boot process hangs again, the problem is likely caused by a third-party system modification that you installed. Post for further instructions.
Step 4
Sometimes a boot failure can be resolved by resetting the NVRAM.
Step 5
Launch Disk Utility in Recovery mode (see Step 1.) Select your startup volume, then run Repair Disk. If any problems are found, repeat until clear. If Disk Utility reports that the volume can't be repaired, the drive has malfunctioned and should be replaced. You might choose to tolerate one such malfunction in the life of the drive. In that case, erase the volume and restore from a backup. If the same thing ever happens again, replace the drive immediately.
This is one of the rare situations in which you should also run Repair Permissions, ignoring the false warnings it may produce. Look for the line "Permissions repair complete" at the end of the output. Then reboot as usual.
Step 6
Reinstall the OS. If your Mac was upgraded from an older version of OS X, you’ll need the Apple ID and password you used to upgrade.
Step 7
Repeat Step 6, but this time erase the boot volume in Disk Utility before installing. The system should automatically reboot into the Setup Assistant. Follow the prompts to transfer your data from a Time Machine or other backup.
Step 8
This step applies only to older Macs (not current models) that have a logic-board ("PRAM") battery. Both desktop and portable Macs used to have such a battery. The logic-board battery is separate from the main battery of a portable. A dead logic-board battery can cause a gray screen at boot. Typically the boot failure will be preceded by loss of the startup disk and system clock settings. See the user manual for replacement instructions. You may have to take the machine to a service provider to have the battery replaced.
Step 9
If you get this far, you're probably dealing with a hardware fault. Make a "Genius" appointment at an Apple Store to have the machine tested. If you can't get to an Apple Store, go to another authorized service provider.

Macbook Pro Retina 2012 shuts down when selecting Recovery HD !!

Hello guys,
I tried to reboot my macbook pro retina 2012 and I held down "Option" key while my macbook was restarting but it won't be able to access into the Disc Utility Menu.
So I really need help to get my macbook format the hard drive, reinstall OS 10.x.x ( any suggestion?). Thank you for reading my post and I look forward a good answer.

Restart the computer and hold down the COMMAND and R keys to boot from the Recovery HD. If that does not work, then you either have a defective Recovery HD or a failing hard drive.
What you can do is this:
Install Mavericks, Lion/Mountain Lion Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
Select Disk Utility from the main menu and click on the Continue button.
After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
This should restore the version of OS X originally pre-installed on the computer.

MacBook Pro Retina 2012 sudden reboots

I have a little problem with my MacBook now (Retina Mid 2012 15"). It sometimes, completely randomly, reboots, that is it stops responding, while looping the audio of about last second and then reboots. It runs on the latest version of OS X Yosemite.
The weird thing is it does not display anything like "Your computer had to restart because of a problem" and the logs do not contain a single clue of what could have caused this problem. It also does not contain any panic logs or anything. Previously it would only happen once a week, now it happen two days in a row. I tried resetting the SMC and the PRAM, but it still continues crashing.

Hello....
a couple hours ago Ive read an article, which was written,that the Macbook Pro Retina from mid 2012 till end of 2014 have a hardware problem concerning ur behavior of ur macbook. Sudden reboots,stop to responding, unable to play videos correctly and symptoms of seeing of blurry pics. Resolution of these problems require to contact apple at the applestore and make an arrangement with them to repair that hardware problem. Of course as a gesture of good will from apple. Im using a macbook pro retina mid 2012 have not these symptoms but at my next stop near an applestore i gonna check the macbook just in case.
Think that is exactly what happened to u and apple gonna fix this.
regard
geronimo

Upgrade graphics card macbook pro retina display mid 2012

Can I upgrade the graphics card on my macbook pro retina display mid 2012 ?
If I can where can I get the parts from ?
Thank you

The only way to do that upgrade is to convert your MacBook Pro to CASH (by selling it) and use the cash to buy a Mac more to your liking.

Mountain Lion FREE update for MacBook Pro Retina 2012

Hello, looking for an honest support.. I bought my Macbook Pro Retina 2012 on this 15 July 2012 from Apple's authorised premium reseller of Bangladesh (Executive Machines Ltd.).. I just knew & saw yesterday that Mountain Lion was published & it is FREE for the buyers who bought the new qualifying machine (as my one is!).. so I just followed the apple.com eligible link and provided my details (address of my current residence which happens to be "Bangladesh", country, city & my valid macbook pro "serial number"..).. after that received a claim reference number mentioning that the FREE redeem code will be emailed to me after checking my claim has been validated.. but after carefully going through that eligibility link I noticed that claims are not eligible for outside US/ Canada.. and now I've provided my serial number & it has been used! and moreover, I did not recieve any email notification from Apple even after 24+ hours!.. what should I do now? .. do I need to buy this Mountain Lion once again even after I am eligible for the FREE update as Apple mentioned before or I just lost my free redeem opportunity as I bought it from outside US (event though from Apple's authorised reseller!!)?? please need honest suggestion..

kurstelle wrote:
can i make a dmg file right after download? its really really long when using recovery and my ml from the regular macbook pro is not compatible with the retina and im not sure why it works well with other macs except for this one. thanks so much. having a headache now on how to make it work.
As you can only get OS X from Internet Recovery, you can't get the OS X Mountain Lion stored on the HDD and make a bootable volume with it. Also, you can't install the OS X version you have on your other Mac because the hardware of this MacBook Pro with Retina display isn't compatible with that OS X version.
In your case, reinstall OS X and see what happens. If you can't reinstall OS X, take the computer to an Apple Store because you can't do anything with that MacBook Pro now

Macbook Pro retina (2012) randomly shuts down, won't wake

My Macbook Pro retina display mid 2012 with OS 10.9 has been acting more and more erratically.
When I close it to sleep, it often won't wake. Space bar does nothing. Sometimes after a minute the power button will wake it. Other times one has to push the power button for over thirty seconds and then it will restart. Also when leaving it to back up to a time capsule overnight it often will try to shut itself down. I checked the power saver and automatic shut down panels and those are not set to do that.
Any ideas or do I have to take it to the genius bar?

montanarama wrote:
My Macbook Pro retina display mid 2012 with OS 10.9 has been acting more and more erratically.
When I close it to sleep, it often won't wake. Space bar does nothing. Sometimes after a minute the power button will wake it. Other times one has to push the power button for over thirty seconds and then it will restart. Also when leaving it to back up to a time capsule overnight it often will try to shut itself down. I checked the power saver and automatic shut down panels and those are not set to do that.
Any ideas or do I have to take it to the genius bar?
Yes, especially if you are still under warranty or have AC. Let Apple deal w/it.

Connecting Dell u2715h Monitor to Macbook Pro Retina, 15-inch, Late 2013

I recently purchased the Dell UltraSharp 27 Monitor U2715H to work as a second monitor with my Macbook Pro Retina 15-inch (late 2013).
What connection cables do I need to make this work most effectively?

Hi,
I bought the same monitor. I will receive it next week, but i read some blogs about the best alternatives for getting the 2560x1440 and my first option will be connecting my macbook pro retina 13' using the thunderbolt (mini-display port) to the mini-display port available in the monitor.
I'm planning using this cable:
http://store.apple.com/us/product/MD862ZM/A/apple-thunderbolt-cable-05-m
A mini-reference about the mini-display port (It was useful for me):
Apple Mini DisplayPort adapters: Frequently asked questions (FAQ) - Apple Support
This is what I'm planning to do. Note that I don't know if it works! I think so, but I don't know. I will tell you if it works next week.
If you have a mini-display port to display port cable it should work too.
Regards,
Carlos.

2 monitors on MacBook Pro (Retina) using Thunderbolt and HDMI ports?

I would like to buy a MacBook Pro with a Retina display. I want to attach 2 external monitors and Ethernet. I need to use one Thunderbolt port to attach to my (wired) ethernet.
Can I attach 2 monitors to a MacBook Pro (Retina) using
1) a mini display port to DVI adapter
2) a HDMI to DVI adapter?

Yes, it is possible to run 3 monitors at once on the Retina MacBook Pro (2 connected over Thunderbolt and one over HDMI).
Displays used in picture below:
Retina on laptop @ “best for Retina”
iMac used as a display @ 2560 x 1440 via Thunderbolt
iMac used as a display @ 2560 x 1440 via Thunderbolt/DisplayPort
LG monitor @ 1920 x 1200 via HDMI
Hope this answers your question.
http://apple.stackexchange.com/questions/53759/how-many-external-displays-can-i- power-with-the-15-retina-macbook-pro

4k Monitor with Macbook Pro Retina 15-inch?

Hey guys,
I recently obtained a Dell UP2414Q Monitor - it's the 4K monitor. I'd like to know if my MacBook Pro Retina 15-inch from Mid 2012 can drive the montor becuase I heard that I can only use the monitor if I have Thunderbolt 2 or something.
Help?

There have been some reports of users with late 2013 MacBook Pros, with the discrete NVIDIA GeForce GT 750M (with 2GB of VRAM), being able to use 4K monitors at 60MHz: but this doesn't apply to 2012 models, I'm afraid.
Sorry,
Clinton

4k Monitor w/ MacBook Pro (Retina, 13-inch, Mid 2014)

I am looking to purchase a 4k monitor. I am attempting to determine if I can get full resolution 4k res at the 60mhz level. From what I read, I can only get 30mhz via an HDMI connection on the laptop. However, this report varies all from different sources.
Ironically, I just bought this MacBook Pro 13in in January 2015 and now the new MacBook Pro 13in just came out w native 4k res support.
My setup:
MacBook Pro (Retina, 13-inch, Mid 2014)
3 GHz Intel Core i7
16 GB 1600 MHz DDR3
Intel Iris 1536 MB

jcannizzo wrote:
1- does Apple ever do exchanges for newly released products? I bought my MacBook in jan they came out with new in mar.
If you purchased the product from Apple, not a third party, you have 14 days from the date of purchase to return it for a refund or exchange. You are well past that.
2- if and when Apple comes out with a 4k or 5k thunderbolt display, will it be backwards compatible with my MacBook sich that I can't get the resolutions and 60mhz?
I do not have an answer to that and the Terms of Use for these forums discourages from speculating what Apple may or may not do in the future. Having said that, from a practical business standpoint, backwards compatibility would be a sensible approach. It has been done so in many areas in the past.
Ciao.

My Macbook Pro Retina 2012 is running very slow and gives me frequent speed problems.

So, I've noticed it happen gradually for about a year now. It started with just minor but not significant delays in opening up programs, but I didn't mind it because the computer was still fast compared to a PC, which is what I used to use before this Macbook. I got this macbook in 2012, and luckily I still have a warranty, but it'll close soon.
Right now, some problems include:
1)
2) Shutting down and turning on the computer is slow (sorry no picture on this one). When I first bought this mac, and until about a year ago, whenever I turn it on/off it would do it instantly. But now, there is a bit of a delay when turning off. The screen seems to just freeze at a certain frame, stays that way for a few seconds (longer when turning it off right after playing a game or two-- don't worry they're compatible with Mac OS), and then shuts off. And when it's frozen at that frame time, you can still see the background materials because they're only faded away. You know what I'm talking about-- Macbook turns out when turning off and then shuts down. So, much of the screen is white, but you can still see the screen prior to the shut down faded.
3) Internet is running extremely slow. When I check my speed at speedtest.net, I get around 47 mbps on bad days and 53-ish on good days (download speed)
EtreCheck results are here:
EtreCheck version: 2.1.8 (121)
Report generated March 24, 2015 at 7:13:26 AM EDT
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    MacBook Pro (Retina, Mid 2012) (Verified)
    MacBook Pro - model: MacBookPro10,1
    1 2.3 GHz Intel Core i7 CPU: 4-core
    8 GB RAM Not upgradeable
        BANK 0/DIMM0
            4 GB DDR3 1600 MHz ok
        BANK 1/DIMM0
            4 GB DDR3 1600 MHz ok
    Bluetooth: Good - Handoff/Airdrop2 supported
    Wireless: en0: 802.11 a/b/g/n
    Battery Health: Normal - Cycle count 411
Video Information: ℹ️
    Intel HD Graphics 4000
    NVIDIA GeForce GT 650M - VRAM: 1024 MB
        Color LCD spdisplays_2880x1800Retina
System Software: ℹ️
    OS X 10.10.2 (14C1514) - Time since boot: 10:53:8
Disk Information: ℹ️
    APPLE SSD SM256E disk0 : (251 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Boot OS X (disk0s3) <not mounted> : 650 MB
        Moon Cheol (disk1) / : 249.80 GB (67.32 GB free)
            Encrypted AES-XTS Unlocked
            Core Storage: disk0s2 250.14 GB Online
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. BRCM20702 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Inc. Apple Internal Keyboard / Trackpad
    Logitech Lenovo USB Optical Mouse
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
Kernel Extensions: ℹ️
        /Applications/Parallels Desktop.app
    [not loaded]    com.parallels.kext.hypervisor (10.1.0 28600 - SDK 10.7) [Click for support]
    [not loaded]    com.parallels.kext.netbridge (10.1.0 28600 - SDK 10.7) [Click for support]
    [not loaded]    com.parallels.kext.usbconnect (10.1.0 28600 - SDK 10.7) [Click for support]
    [not loaded]    com.parallels.kext.vnic (10.1.0 28600 - SDK 10.7) [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [loaded]    com.microsoft.office.licensing.helper.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [running]    com.nero.HSMMonitor.plist [Click for support]
    [failed]    com.valvesoftware.steamclean.plist [Click for support]
User Login Items: ℹ️
    Steam    UNKNOWN (missing value)
    iTunesHelper    Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Internet Plug-ins: ℹ️
    SharePointBrowserPlugin: Version: 14.0.0 [Click for support]
    FlashPlayer-10.6: Version: 16.0.0.235 - SDK 10.6 [Click for support]
    Flash Player: Version: 16.0.0.235 - SDK 10.6 Outdated! Update
    QuickTime Plugin: Version: 7.7.3
    JavaAppletPlugin: Version: 15.0.0 - SDK 10.10 Check version
    Default Browser: Version: 600 - SDK 10.10
Safari Extensions: ℹ️
    Open in Internet Explorer
3rd Party Preference Panes: ℹ️
    Flash Player [Click for support]
Time Machine: ℹ️
    Time Machine not configured!
Top Processes by CPU: ℹ️
        22%    WindowServer
         3%    quicklookd
         2%    Dock
         2%    hidd
         1%    Google Chrome
Top Processes by Memory: ℹ️
    455 MB    softwareupdated
    258 MB    Google Chrome
    151 MB    Google Chrome Helper
    137 MB    WindowServer
    77 MB    Finder
Virtual Memory Information: ℹ️
    3.39 GB    Free RAM
    3.24 GB    Active RAM
    848 MB    Inactive RAM
    1.11 GB    Wired RAM
    13.63 GB    Page-ins
    61 KB    Page-outs
Diagnostics Information: ℹ️
    Mar 24, 2015, 06:32:54 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/UserKernel_2015-03-24-063254_[ redacted].crash
    Mar 23, 2015, 08:20:04 PM    Self test - passed
    Mar 23, 2015, 04:35:14 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/UserKernel_2015-03-23-043514_[ redacted].crash
    Mar 22, 2015, 08:38:53 PM    /Users/[redacted]/Library/Logs/DiagnosticReports/UserKernel_2015-03-22-203853_[ redacted].crash
    Mar 22, 2015, 03:00:50 AM    /Users/[redacted]/Library/Logs/DiagnosticReports/UserKernel_2015-03-22-030050_[ redacted].crash
    Mar 21, 2015, 03:34:12 PM    /Users/[redacted]/Library/Logs/DiagnosticReports/UserKernel_2015-03-21-153412_[ redacted].crash
Resetting computer to factory conditions doesn't work, time-machine didn't work, and clearing more storage space didn't work either. I would like to get this problem fixed before my warranty runs out. Thanks for reading and any sort of help will be appreciated!

Do you know of any specific tasks or situations that cause it to perform poorly? If so, make a note of those and demonstrate them for Apple. Do NOT, under any circumstances, restart the machine. You want it at its worst when you take it in. If you try to do any of those magic resets, it may just reset things just long enough for Apple to proclaim it healthy. If Apple does that anyway, then there are plenty of opportunities to try those things later after your warranty has expired.
I wish I knew exactly when it does this, but it doesn't always happen. It sometimes does, and sometimes doesn't. I thought about this, too. But the problem is that it's really hard to catch a time or figure out what causes these symptoms to occur. I haven't taken it to Apple because I thought it'll just be a waste of time because they'll probably say that it's healthy so they don't have to put any money/effort to try and fix it...

My screen flickers in Safari MacBook Pro Retina 2012

My screen flickers in a totally random fashion and only in Safari when I am on the internet. It happens more or less on certain web pages and not very often, but it is very annoying when it does happen. My machine is a Macbook Pro Retina 15" late 2012 release. I have seen other posts on this issue dating back to 2012, however, there were not solutions submitted leaving me to believe that there is no solution or I may have missed it. People with the same problem say they have taken in their laptops to have them replaced by Apple only to find out their problem still exists, leading many to believe it's likely to be a software issue. Anyone have any ideas or answers to this issue?

Hey dhaynes3818,
Thanks for the question. I understand that you are experiencing issues with Safari on your MacBook Pro. To troubleshoot these issues, lets follow the steps in this article:
Unsupported third-party add-ons may cause Safari to unexpectedly quit or have performance issues - Apple Support
http://support.apple.com/en-us/HT203353
Thanks,
Matt M.

Best monitor for MacBook Pro (Late 2012)

After searching Apple's knowledge base (reference: Using 4K displays and Ultra HD TVs with Mac computers - Apple Support), it appears that MacBook Pro (Late 2012 model) does not support 4K monitors, correct?
If this is the case, what's the best monitor (resolution and pricepoint) I can get for this model? Should I just try to find an old refurbished 27" Thunderbolt Display?
My MBPr runs a 2.9Ghz Intel Core i7 w/8GB RAM and OS X v10.9.5.
Thanks,
Nicholas

A Dell ultra Sharp would be a good buy. Depending on what size you want:
http://www.amazon.com/Dell-UltraSharp-27-Inch-LED-Lit-Monitor/dp/B00P0EQD1Q
Otherwise, if you don't mind spending the money, and not worried about not using the monitor to its fullest this BENQ is an excellent monitor
http://www.amazon.com/BenQ-BL3201PH-Monitor-32-Inch-LED-Lit/dp/B00O1B5M9I/ref=sr _1_11?s=electronics&ie=UTF8&qid=1424384286&sr=1-11&keywords=4k+monitors

Connecting 4k monitor to Macbook Pro retina 2012 mid

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