2 Dual core intel xeon vs quad core. Whats the difference??

I came across someone who's selling his mac pro 1.1 (aprox 2-3 years old machine) which hosts 2 dual core intel xeon processors 2.66 Ghz (4 total cores) with an L2 cache of 4 MB per processor and 3 gb of RAM. He is asking for 1200.00
I wonder:
1. is there a significant difference between the machine described above and the new 2.66GHz Quad-Core Intel Xeon 3500 series processor machines Apple offers?
2. Is 1200 a good deal considering its a 2-3 year old machine? how much would it cost me brand new?
3. I am planning to purchase the machine to use Logic Pro 8 (considering to upgrade to 9) which I currently run on my mac book intel core duo 1.8 GHZ. Which of the two machines will be optimal for it?
Thanks in advance for your time!

Using the scores on the GeekBench site, I show that a Mac Pro 1,1 2.66GHz gets a score of 4544.
http://browse.geekbench.ca/geekbench2/view/218641
The Mac Pro 4,1 Quad Core 2.66GHz with all its Nehalem glory gets a score of 9256.
http://browse.geekbench.ca/geekbench2/view/229504
Benchmark tests versus real-world performance, along with your mileage, may vary. But that should give you an idea of what kind of what you're getting.

Similar Messages

I have a Mac Pro 4,1 quad core intel Xeon running mac OSX 10.6.8 and I have just moved studios and now need to use the Internet wirelessly but there's no airport facilities on this model can anyone tell me what model of airport card I would need for this

I have a Mac Pro 4,1 quad core intel Xeon running mac OSX 10.6.8 and I have just moved studios and now need to use the Internet wirelessly but there's no airport facilities on this model can anyone tell me what model of airport card I would need for this mac

Instead of getting a wireless card for the Mac Pro, you might want to consider getting an 802.11ac wireless bridge device that would enable you to connect more than one device to it by Ethernet cable and to eventually take advantage of the faster 802.11ac wireless standard.

Best graphics card for MacPro 5,1- 2.8GHz Quad-Core Intel Xeon OS 10.6.8

Hi everyone.
I have a 2011 MacPro 5,1- 2.8 GHz Quad-Core Intel Xeon. 32GB RAM OS 10.6.8 with the stock ATI Radeon HD 5770 graphics card.
When I output/process/convert video through Quicktime or iMovie or Adobe Premiere or VisualHub (not always, but usually WS multi-pass H264, best quality), it seems to take forever.
Currently (as I type this) outputting a 2 hour movie made of 14 clips of 852x480 30fps 44KHz movies to a 29.97 multi-pass H264 48KHz file with Adobe Premiere CS 5.5.2- is coming up on 10 hours.
I would like to upgrade to a better graphics card with better VRAM and processing power. I realize that being on OS 10.6.8 may create a few problems. I'm willing to upgrade to 10.7 or 10.8 if need be. Though I'd hate to lose the carbon programs that I still use (like VisualHub).
I've heard that nVidia is the way to go, but I'm not sure which card to get. The Quadro FX 4800 looks promising (and expensive).
Anyone have any insight?
Thanks in advance for any help.

Dual or triple boot until you are sure if Lion or ML works.
GTX 570 2.5GB VRAM $320 from MacVidCards is one way to go, even GTX 680 (but that does require 10.8.x)
Nvidia 4000 (I thought I read Nvidia has a 5000 Quadro) not the older 4800. Amazon has Q4K $800.

MacPro3,1 Quad-Core Intel Xeon, 3 GHz, 16 GB Reboots not stable.

Hi,
I have tried to search the community but I'm not getting any wiser. It all started when i installed Mavericks on my Mac Pro. Now I formatted the SSD and re-installed Mountain Lion 10.8.5 and it has gotten worse. I don't understand what has happend.
Anyone know what to do?
/Jimmy
Here is a log:
Interval Since Last Panic Report: 43 sec
Panics Since Last Report: 3
Anonymous UUID: DDB1424A-2CB9-4992-BB10-673DBF15410D
Tue Nov 5 07:05:15 2013
Machine-check capabilities 0x0000000000000806:
family: 6 model: 23 stepping: 6 microcode: 1547
Intel(R) Xeon(R) CPU X5472 @ 3.00GHz
6 error-reporting banks
threshold-based error status present
Processor 0: machine-check status 0x0000000000000004:
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0xf200000430000800 valid
MCA error code: 0x0800
Model specific error code: 0x3000
Other information: 0x00000004
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xf2000010c4300e0f valid
MCA error code: 0x0e0f
Model specific error code: 0xc430
Other information: 0x00000010
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Processor 1: machine-check status 0x0000000000000004:
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0xf200000430000800 valid
MCA error code: 0x0800
Model specific error code: 0x3000
Other information: 0x00000004
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xf2000010c0300e0f valid
MCA error code: 0x0e0f
Model specific error code: 0xc030
Other information: 0x00000010
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Processor 2: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xf200000084200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8420
Other information: 0x00000000
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Processor 3: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xf200000080200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8020
Other information: 0x00000000
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Error overflow
Processor 4: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200001084200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8420
Other information: 0x00000010
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Processor 5: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200001080200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8020
Other information: 0x00000010
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Processor 6: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200000084200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8420
Other information: 0x00000000
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
Processor 7: machine-check status 0x0000000000000005:
restart IP valid
machine-check in progress
MCA error-reporting registers:
IA32_MC0_STATUS(0x401): 0x1000000020000000 invalid
IA32_MC1_STATUS(0x405): 0x0000000000000000 invalid
IA32_MC2_STATUS(0x409): 0x0000000000000000 invalid
IA32_MC3_STATUS(0x40d): 0x0020000000000000 invalid
IA32_MC4_STATUS(0x411): 0x0000000000000011 invalid
IA32_MC5_STATUS(0x415): 0xb200000080200e0f valid
MCA error code: 0x0e0f
Model specific error code: 0x8020
Other information: 0x00000000
Threshold-based status: Undefined
Status bits:
Processor context corrupt
Error enabled
Uncorrected error
panic(cpu 7 caller 0xffffff801aab8389): "Machine Check at 0xffffff7f9c469cf7, registers:\n" "CR0: 0x000000008001003b, CR2: 0x000000010df85000, CR3: 0x000000001ce29000, CR4: 0x0000000000000660\n" "RAX: 0x0000000000000000, RBX: 0xffffff803b3e4000, RCX: 0x0000000000000001, RDX: 0x0000000000000000\n" "RSP: 0xffffff81eab3bcc0, RBP: 0xffffff81eab3bcf0, RSI: 0x0000000000000001, RDI: 0xffffff81e12eb148\n" "R8: 0x00000000e0000000, R9: 0x7ffffffffffffffe, R10: 0x00000000ffffffff, R11: 0x00000000ffffff80\n" "R12: 0x0000000000000001, R13: 0xffffff803b25c640, R14: 0x0000000000000000, R15: 0x0000000000000148\n" "RFL: 0x0000000000000046, RIP: 0xffffff7f9c469cf7, CS: 0x0000000000000008, SS: 0x0000000000000010\n" "Error code: 0x0000000000000000\n"@/SourceCache/xnu/xnu-2050.7.9/osfmk/i386/trap_native.c:28 0
Backtrace (CPU 7), Frame : Return Address
0xffffff81e1265ec0 : 0xffffff801aa1d5f6
0xffffff81e1265f30 : 0xffffff801aab8389
0xffffff81e12660a0 : 0xffffff801aaced7f
0xffffff81eab3bcf0 : 0xffffff7f9c46312e
0xffffff81eab3bdd0 : 0xffffff7f9c462515
0xffffff81eab3be80 : 0xffffff801aab8bdb
0xffffff81eab3bea0 : 0xffffff801aa2f193
0xffffff81eab3bee0 : 0xffffff801aa2dc51
0xffffff81eab3bf40 : 0xffffff801aa2d9c3
0xffffff81eab3bf80 : 0xffffff801ae45cad
0xffffff81eab3bfb0 : 0xffffff801aab2677
Kernel Extensions in backtrace:
com.apple.driver.AppleIntelCPUPowerManagement(196.0)[BBF44990-49F7-3780-AF55-C26 B48EDE4C4]@0xffffff7f9c460000->0xffffff7f9c488fff
BSD process name corresponding to current thread: kernel_task
Mac OS version:
12A269
Kernel version:
Darwin Kernel Version 12.0.0: Sun Jun 24 23:00:16 PDT 2012; root:xnu-2050.7.9~1/RELEASE_X86_64
Kernel UUID: 8D5F8EF3-9D12-384B-8070-EF2A49C45D24
Kernel slide: 0x000000001a800000
Kernel text base: 0xffffff801aa00000
System model name: MacPro3,1 (Mac-F42C88C8)
System uptime in nanoseconds: 222319942260
last loaded kext at 125661328070: com.apple.filesystems.smbfs 1.8 (addr 0xffffff7f9c768000, size 229376)
last unloaded kext at 80161770505: com.apple.driver.AppleFileSystemDriver 3.0.1 (addr 0xffffff7f9c689000, size 8192)
loaded kexts:
com.apple.filesystems.smbfs 1.8
com.apple.driver.AudioAUUC 1.60
com.apple.filesystems.autofs 3.0
com.apple.iokit.IOBluetoothSerialManager 4.0.9f8
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AppleUpstreamUserClient 3.5.10
com.apple.driver.AppleMCCSControl 1.0.33
com.apple.kext.AMDFramebuffer 8.0.0
com.apple.iokit.CSRBluetoothHCIControllerUSBTransport 4.0.9f8
com.apple.driver.AppleHDA 2.3.0f2
com.apple.ATIRadeonX2000 8.0.0
com.apple.iokit.IOUserEthernet 1.0.0d1
com.apple.driver.AppleLPC 1.6.0
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleMCEDriver 1.1.9
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.ApplePolicyControl 3.2.6
com.apple.iokit.SCSITaskUserClient 3.5.1
com.apple.driver.XsanFilter 404
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0d1
com.apple.BootCache 34
com.apple.iokit.IOAHC
Model: MacPro3,1, BootROM MP31.006C.B05, 8 processors, Quad-Core Intel Xeon, 3 GHz, 16 GB, SMC 1.25f4
Graphics: ATI Radeon HD 2600 XT, ATI Radeon HD 2600, PCIe, 256 MB
Memory Module: DIMM Riser B/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x3138484632353637324A4438304545314434
Memory Module: DIMM Riser A/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x3138484632353637324A4438304545314434
Bluetooth: Version 4.0.9f8 10405, 2 service, 18 devices, 1 incoming serial ports
Network Service: Ethernet 2, Ethernet, en1
PCI Card: ATI Radeon HD 2600, sppci_displaycontroller, Slot-1
Serial ATA Device: OCZ-AGILITY3, 240.06 GB
Serial ATA Device: WDC WD5000AAKS-60Z1A0, 500.11 GB
Serial ATA Device: WDC WD2500JD-41HBC0, 250.06 GB
Serial ATA Device: WDC WD3200JD-22KLB0, 320.07 GB
Parallel ATA Device: OPTIARC DVD RW AD-7170A, 4.75 GB
USB Device: hub_device, 0x0409 (NEC Corporation), 0x005a, 0xfd400000 / 2
USB Device: hub_device, 0x0409 (NEC Corporation), 0x005a, 0xfd440000 / 4
USB Device: iLok, 0x088e, 0x5036, 0xfd442000 / 7
USB Device: XSKey, 0x086a (Emagic Soft-und Hardware Gmbh), 0x0041, 0xfd443000 / 6
USB Device: Keyboard Hub, apple_vendor_id, 0x1006, 0xfd441000 / 5
USB Device: Apple Optical USB Mouse, apple_vendor_id, 0x0304, 0xfd441300 / 9
USB Device: Apple Keyboard, apple_vendor_id, 0x0221, 0xfd441200 / 8
USB Device: ProtectExecuter, 0x0819, 0x0101, 0xfd430000 / 3
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8206, 0x5d200000 / 2
FireWire Device: built-in_hub, 800mbit_speed

Memory Module: DIMM Riser B/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 1, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 2, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser B/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x3138484632353637324A4438304545314434
Memory Module: DIMM Riser A/DIMM 3, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x0D9B, 0x000000000000000000000000000000000000
Memory Module: DIMM Riser A/DIMM 4, 2 GB, DDR2 FB-DIMM, 800 MHz, 0x802C, 0x3138484632353637324A4438304545314434
Why is it that the DIMM 4 only has numbers in it? All the others have all zeros?

Fileshare between my Mac Pro Quad Core Intel Xeon (64-bit) & Power Mac 9600

I want to make my Power Macintosh 9600/233 (Mac OS 9) a shared computer with my Mac Pro Quad Core Intel Xeon (64-bit)(Mac OS 10.6.6). I am using a Netopia Model 3346N-VGx DSL Ethernet Managed Switch to network with my Samsung printer and the Mac Book Pro.
I also have a Power PC G4 (Mac OS 10.5.8) connected (via a Ziplinq 48" Retractable Crossover Network Cable) to a Farallon EtherWave 10 Base-T AAUI Transceiver, which in turn is connected to the Netopia, from which I can share files. All of this is ethernet connectivity.
I thought I could connect my 9600 using the same method as for the G4 or by connecting the ethernet cable from the 9600 directly into the Mac Pro Quad Core. However, neither of these methods work.
An additional stumbling block is that I have not used this 9600 for several years and am not sure of its account name. I'm fairly certain of its password. But because I don't have a second monitor for this machine, I can't muddle my way in.
My questions:
1. What might be a network solution to this dilemma?
2. Or, do I need to get another monitor for this computer and leave it un-networked and just transfer files manually?
3. Or, would whatever hard drives are in the 9600 be transferable into the networked G4 or the main Mac Pro? (not sure what they are.)
Any suggestions greatly appreciated.

Oh man, what a dilemma...
1. What might be a network solution to this dilemma?
Without a monitor on the 9600, almost none. At the very least you'll need to configure the server with appropriate network settings for your environment, and that can't be done headless.
You might only need a display for long enough to setup the network, but you'll need one all the same.
Once the network is configured your options are either AFP or FTP, but I'm not even sure the old version of AFP is supported anymore, which means you may need to fire up an FTP client on the 9600 and push the files to your MacPro.
2. Or, do I need to get another monitor for this computer and leave it un-networked and just transfer files manually?
As mentioned above, you're going to need a monitor at the very least to configure the network settings. I'd be inclined to say at that point you might as well copy the files off any way you can and put the 9600 to rest. If you're really, really fortunate and the 9600 has a CD burner I'd probably use that and count myself lucky
3. Or, would whatever hard drives are in the 9600 be transferable into the networked G4 or the main Mac Pro? (not sure what they are.)
The 9600 shipped with SCSI drives, which no current Mac support (at least without a SCSI card), so there's no way to remove the drive from the 9600 and attach it directly to the MacPro.

2 2.66 Ghz Dual-Core Intel Xeon processor upgrade

I have a question about my Mac Pro.I don't know if you can answer it or point me in the right direction. I have a 2006 Mac Pro 2+2.66Ghz. Dual-Core Intel Xeon with 8 GB 667 Mhz DDR2 FB-DIMM Ram.What types of upgrades can I do to make this a faster machine? Processor upgrade? or should I just by a new Mac Pro?

Selling the old one and buying a new one is the easiest way.
Macs tend to keep a much higher value then PC.
Allan

Ere are the specs on the Mac I need more power on. Mac Tower Processor 2 x 2.26 GHz Quad-Core Intel Xeon Memory 6 GB 1066 MHz DDR3 ECC Graphics NVIDIA GeForce GT 120 512 MB Serial Number H00354XF20G Software OS X 10.8.5 (12F45) Harddive 640 GB SATA

ere are the specs on the Mac I need more power on.
Mac Tower
Processor 2 x 2.26 GHz Quad-Core Intel Xeon
Memory 6 GB 1066 MHz DDR3 ECC
Graphics NVIDIA GeForce GT 120 512 MB
Serial Number H00354XF20G
Software OS X 10.8.5 (12F45)
Harddive 640 GB
SATA Disk
(2) Harddrives 1 TB
SATA Disk
RAM 6 slots total -- 6 are filled with 1GB
(3) UAD Quad cards installed
I use this computer stictly for audio recording.
Pro Tools 10.3.7
Interface Apollo 16
Pro Tools is curretnly not compatible with Maverick. Also, I believe that Pro Tools 10 only allows 4GB ram to be utilized (not sure )
I know Pro Tools 11 allows more, but not sure how much more. Also not sure if the upgrade to Pro Tools 11 I will have to purchase all new plug ins or if my existing ones will continue to work in it.
The platform changes from 32 bit to 64 with the upgrade to 11
If it is as simple as adding more ram, what mode-part #l would you recomeend. Can the processor be upgraded also ?
The new tube like Macs are non compatible with UAD Cards. Those cards a must my sessions

You can use Activity Monitor to check if apps run as 32 or 64 bit - simply look at the "Kind" column (you may need to select it under View -> Columns) and see if the app in question is listed as "Intel" i.e. 32 bit or as "Intel (64 bit)".
While in Activity Monitor you can also check if Pro Tools is close to the 3-4 GB limit of a 32 bit app - if you aren't you will probably not benefit from more RAM.
Your MacPro (it appears to be a Early 2009 model) should have come with a small booklet showing how to install RAM and what kind of RAM that you need. Any RAM that fulfills the requirements should work but your safest choice is probably to buy from a retailer/online store that supports Macs as they will usually know what kind of RAM you need for your mac model.
Upgrading the CPUs should be possible, but I haven't seen Apple document how to do this, so you will probably have to google around a bit to find instructions and CPU part numbers.
Your choice of CPUs will also be limited by the motherboard and CPU socket so you may be limited to faster version of your current CPU chip and some slightly newer versions.
Going from your current CPU to the fastest version included in the 2009 MacPros would be going from 2.26 GHz to 2.93 GHz. This would only give a modest 30% speed boost. Using newer and highly clocked CPUs might boost this somewhat more maybe to 50% ?

Fastest Video Card for Mac Pro with Dual-Core Intel Xeon

Can anyone offer advise on whether I can update the video card in my Mac Pro Dual-Core Intel Xeon computer? I'm pretty sure i can but I have no idea how to upgrade and what to look for in video cards. I do know that I want something fast, hopefully faster than the current ATI Radeon X1900 XT for use with Aperture 3.0. Any suggestions are greatly appreciated.

5770 in the 2006 Mac Pro
ATI HD 5770 MC742ZM A

AirDrop on my MacBook Pro but not on my Desktop MacPro (Quad-Core Intel Xeon). Does the desktop not support it?

AirDrop on my MacBook Pro but not on my Desktop MacPro (Quad-Core Intel Xeon). Does the desktop not support it? What gives?

See if your Mac model supports it:
http://support.apple.com/kb/HT4783
Thanks ... Ken

My 2 x 2.8 GHz Quad-Core Intel Xeon turns itself off and on by itself

my 2 x 2.8 GHz Quad-Core Intel Xeon turns itself off and on by itself

Always makes it easier and shorter thread life to start wtih a basic list of parts: RAM, GPU which can vary a lot and be important, other upgrades or changes or such.
Whether you have done SMC Reset, Safe Boot, Clean install. Even disconnecting external devices.
And whether you have 10.6.8 or not, likely not.
3rd party tasks
Best is to start wtih a base clean system and only install the minimum necessary latest versions and test as you go.
Setup an emergency boot drive in addition to the OS Recovery partition to perform repairs and more. Especially if you are now using an SSD.
When it started. What you did or what happened before and how long it has been this way.
Not a cure but having a UPS helps and helps to avoid sudden power loss or changes or from storms.
2008's ahve become notorious for these kinds of issues. They shipped with wake from sleep restart bug that was addressed with a pair of firmware updates to EFI and SMC but have not I would venture to say been 100% successful.

System crashes when attempting to install 10.6. Keeps asking to restart. Computer is a Dual-Core Intel Xeon processor and 2 GB Memory.

I have tried to install 10.6 and when install is complete it says restart. The computer restarts but keeps coming to a gray screen with a small black box that says to restart. The processor is 2 x 2.66 GHz Dual Core Intel Xeon with 2 GB of memory. This should be more than adequate. Any ideas? Has anyone encountered this before? I had to restore 10.5 from Time Machine.

Your sig line says iMac, but TMK no iMacs were ever made with 2x2.66 GHz processors. Is this a Mac Pro you are installing on? Are you using a retail Snow Leopaard DVD?

How to delete photos with Zero KB size that were downloaded onto mac pro osx vers 10.5.8, 2x2.8 quad core intel Xeon ?

How to delete picture files ( nikon NeF and jpeg ) with Zero KB size that were downloaded onto mac pro osx vers 10.5.8, 2x2.8 quad core intel Xeon
-- have not been able to move them or move them to trash without crashing Finder ?

Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive & clear caches.)
Try trashing them in Safe Mode, reply if that doesn't help.

I have a MacPro5,1, Quad-Core Intel Xeon, 2 processors running at 2.4 GHz. I am running OSX 10.6.8. I installed Yosemite on another drive. When I choose Restart in Yosemite it shows my 10.6.8 hard drive. But when I click Restart in 10.6.8 it does NOT

I have a MacPro5,1, Quad-Core Intel Xeon, 2 processors running at 2.4 GHz. I am running OSX 10.6.8. I installed Yosemite on another drive. When I choose Restart in Yosemite it shows my 10.6.8 hard drive. But when I click Restart in 10.6.8 it does NOT show my Yosemite drive. I used to know how to get the startup screen that showed multiple drives but I've forgotten it. How do I do that?

Press Option at startup.
(124807)

Running 10.6.8 on Mac Pro Dual-Core Intel Xeon 2.66GHz processors. Can I upgrade to Lion 10.7

I've just upgraded from 10.5 to 10.6.8 on a Mac Pro Dual-Core Intell Xeon, 2.66GHz. Is it possilbe to upgrade to Lion 10.7 with my Mac Pro Dual Core or have I just hit my ceiling on 10.6.8 update ?

Mac Pros are not PowerMacs. In 2006, Apple changed all its cheesegrater enclosure Macs to have the Xeon chip installed, and changed the name to Mac Pro at that that time from PowerMac G5. That said, all Mac Pros can upgrade to a minimum of 10.7.5. Only the earliest ones can't upgrade to 10.8 and above. 10.7 and later do not have Rosetta, the ability to run PowerPC (pre-2006) applications natively. For other pitfalls, read this tip.

Mac Pro 3.2 GHZ Quad-Core Intel Xeon Running Slow

Hi everyone!
I'm a professional photographer and could use some advise, and thanks for your help in advance!
I have a Mac Pro 3.2 GHZ Quad-Core Intel Xeon with 8 gigs of 1066 MHz DDR3 of memory, running on OS 10.9.5, and my main drive for applications is 1TB and has about 420 GB free. I have various other hard drives for storage.
I use Chrome, Lightroom 4, Photoshop CC2014, Blogstomp, Spotify or iTunes, and I have Backblaze Backup running continuously.
When I first got my computer I didn't have any problems, but over the past few months it's been running super slow. I know that LR4 has issues, but I want to make sure that there isn't anything else I need to look into before getting more memory. I mean even Chrome opening up has the beachball.
Thanks!
-Deirdre

etresoft EtreCheck
The output from that, post it, can be useful.
More details on the hardware from it too: amount of memory (24-48GB RAM), any changes or upgrades.
Good tips and advice can be found here, also pro graphics
Macintosh Performance Guide Articles & Reviews
My guess is this is a 5,1 2010-2012. You could use a GTX 680 or later, it has good PCIe (the 2009 is somewhat weaker and crippled by sharing slots 3&4)
A Samsung XP941 512 $525 delivers 1100MB/sec reads and 900MB/sec writes to supercharge your system - one of the best and few such, similar to the same SSD blade used in the nMP 6,1. Lightroom and CS love to be able to load and write scratch, graphic libraries. Bootable. You could use a smaller 256GB $275 for system in slot #3 and one for data and scratch in slot #4 if you wanted to go full out.
You said it was fine originally so maybe something you installed, or an upgrade to the OS or something else that Etrecheck should help show.

2 Dual core intel xeon vs quad core. Whats the difference??

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