Is there a noticeable difference between Dual Core i7 and Quad Core i7?

Hi everyone.
I'm going to be a college freshman this fall. I'm looking at 13" MacBook with Retina Display with dual core i7. I'm also looking at the 15" MacBook Pro with Retina Display with Quad Core i7. I want to major in science and have a concentration in photography, which means that I will run programs like Excel, PowerPoint (or keynote), and Photoshop.
Anyways, will there be a noticeable difference between a Dual Core i7 processor and a Quad i7 processor?
Thanks!

Ceteris Paribus, the quad-core will be twice as fast as the dual-core.

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Performance Difference Between Dual 2.7 and Quad, and Logic Pro

I used to have a G5 DP 2.7 before it went bad and Apple offered me a Quad in exchange. I'd like to understand some details of the specs between these two computers and how they might translate with respect to running Logic Pro (which I'll get to in a minute)...
Listed below are the specs which I believe illustrate the significant differences between these two machines (this info is based on info gleaned from Macworld, since the specific specs of the DP 2.7 no longer appear on Apple's website):
Dual 2.7
(2x) 2.7 GHz, cache = 512K per processor, frontside bus speed = 1.35 GHz per processor
Quad
(4x) 2.5 GHz, cache = 2MB on-chip L2 per chip, frontside bus speed = 1.25 GHz per processor
So here's the link with Logic: it's become apparent of late that Logic Pro is not able to fully utilize the processing power of all 4 cores in the Quad. Reports are that performance tops out at 50% per processor, resulting in approx. 200% possible processing usage from the 4 cores in the Quad.
However, such a limitation in processor usage wasn't present in the DP 2.7.
So based on the information I've learned so far, it seems that the Quad and the DP 2.7 are almost equivalent in terms of processing power when running Logic Pro. Now, this is what I'm surmising, but, is this actually the case? At the end of the day, I'd like to know if the Quad indeed a more powerful computer than the DP 2.7 when running Logic Pro, or, did my exchange of DP 2.7 for the Quad constitute a "downgrade" of any proportion?

The only logical answer to Why Intels do and PPC don't is:
Apple want everybody to transition to their Intel boxes. The only way to do this is offer better performance in software tweaks for one system over the another, which begs the question what else will Apple do to software for PPC owners?
Having bought a Mac Pro, primerily for testing out certain software apz under Rosetta, I did a real time test between my 8GB RAM G5 Quad and my stock Mac Pro upgraded to 2GB RAM, batch processing 204 Canon 1DsMKII RAW files into 16-Bitt TIFFs. I put a thread on the Mac Pro forum here:
http://discussions.apple.com/thread.jspa?threadID=627916&tstart=15
I so wanted my Quad to squash the Intel invaded Mac, but results speak for themselves. The Mac Pro flattened the G5 Quad by over 23 minutes (it worked out as 1.7 times faster than the G5Quad).
If that's how it performs with 2GB RAM it's gonna really fly when I max it out. So, for musicians, I would imagine with the Quad core support for Intel Macs in Logic 7.2.2 makes a fairly straight forward decision. . .buy a Mac Pro and sell your PowerMac. More time composing less time waiting for renders (never used music software so if it doesn't render your composition place whatever it does do into the 'renders' slot )
P.S I hated, really hated having to say the Mac Pro toasted my G5 Quad, I so wanted the Intel to fall flat on it's aluminium as$, but it didn't. It's a quick machine. A very quick machine which toasted my Quad in real time tests using a universal Pro app from a 3rd Party (who would have no incentive to dumb down the PPC version as they sell their product to Windows, PPC OS X and Intel OS X)

Noticeable difference between dual 1.8 and dual 2.4?

Hey all,
I'm just about to pull the plug on buying a used G5 on Craigslist: dual 1.8ghz, 3gb DDR SDRAM, Leopard, 20" display, $800. My only reason for hesitation is that this is going to be my primary computer, and is replacing my beat up four year old Powerbook that's no longer 100% reliable. I'm using it primarily for graphic design (Photoshop), photography (Lightroom), and music recording (ProTools).
My question, now, is: would it be worthwhile to hold out and get one with dual 2.4ghz processors and spend $100 or $200 more? Is there that big of a difference? (Keep in mind I'm a broke and graduating from college in two days!).
Thanks!
Alec

Ask for the condition of the machine and I would certainly ask for pictures.
I bought once a " mint " Cube system only to receive it with chocolate stuck in the keyboard, deep scratches on the cube shell and only a 15" LCD instead of 17" (Quite a difference in cost at the time) I say that not to give you cold feet, but as something to be aware of. Don't know if you have bought used systems before and how picky you are on. I am quite picky on my stuff and treat it with a lot of care. So, mint condition should be mint and shows the user to care of the machine. Tiny scratch here or there and/or a nick happens. Owner shouldn't have a problem disclosing it. I just saw a small scratch on my G5 door the other day when I cleaned it ... Anyway, I have seen and worked some laptops I wouldn't want to own or be seen with, even if they were given to me free! Same with some cellphones I've seen ... it's like they've been dragged behind a car.
Enquire how intensely the machine was used. Pro video editing as a business is quite a bit more stressful than home computer in the evening and weekend and may affect the total lifespan in years.
One thing that you can do is ask for screen grabs of the System Profile ( Command + Shift + 4, select area) or have them save the entire profile and email it to you.
Utilities > System Profiler > File > Save as ...
You could request an xbench score http://www.xbench.com/ using the xbench application
and then do a quick comparison here http://db.xbench.com/
Quite some factors can be playing in the score though, like the hard drive, graphics card, version of the OS, etc. But could be an additional reference.

Is there a noticeable difference between a 1.83 and 2.00 GHz processor?

I am new to apple, and this will be my first Apple laptop computer. I am looking for a laptop that is powerful enough to run programs such as Adobe Photoshop (no more than one photo at a time) and other basic programs such as Microsoft Office. I will be doing no video or gaming. Can you tell me if there is a reason to upgrade from the 1.83GHZ to the 2.00 GHz processor? Thank you.

You are only looking at a difference of 170Mhz. As far as I know the processors are the same except for clock speed. I do not think that you will notice any difference in the two processors for smaller jobs like applying a filter in Photoshop or running a spell check in Office. The 2Ghz will edge ahead for longer term tasks such as editing and compressing video. If something takes 1 hour to compress into "quicktime" (IE. h.264) you may see the 2Ghz MB finish 10 minutes sooner.
Bottom line, from what you are describing, I do not think you will do anything that will be too terribly intensive to notice the difference in speed now. But I always advise to people to buy as FAST as they can afford. Your computer will stay faster for longer. In a few years that extra little bit of speed can come in handy as programs continue to becomes more complex. Somthing intaresting about your situation right now is that Both Office and Photoshop are not Intel native for the Mac, so they will need to be emulated by Rosetta. While it is supposed to be seemless, rosetta is emulated so it is slower. You will get a noticable boost in speed if you upgrade to the native (or Universal) version of these programs when they are made available.
OK, I have blabbed on enough. Hope this helps shed some light on things. (Personally I would go with the 2Ghz.)
- Kiteless

There is a difference between the document total and its components

Hi!
I have an error message "There is a difference between the document total and its components" when I want to create an InventoryGenEntry
the problem arises from time to time and my customer must do the document two or three times before it is created.
I have seen in this forum and in notes that this is probably being caused by a Rounding.
I am using 2 digits for amounts, 4 digits for prices, 6 digits for rates and 3 digits for quantities.
For information my customer use SAP 2005 and the patch level 46.
This problem happened only in InventoryGenEntry. how can I modifiy parameters to resolve this problem?
thank you for your help.
Best Regards
Séverine

Hi Séverine,
Do you find any additional code added to SBO_SP_Transaction stored procedure. A similar issue with stock transfer fixed in later patch. Please test in latest patch.
Regards,
Vijay kumar
SAP Business One Forums Team

Is there a noticeable difference between 1.3 and 1.7 processor speed

Will I notice a difference between a 1.3 and 1.7 Hz MacBook Air? I multitask with safari with multiple tabs and iTunes and Acrobat and PowerPoint. I'm not a gamer or won't be doing video editing.

On most things no. Only 15% average on large app tasks
Here is an excellent video comparison between the 11” I5 vs. I7 2013 Macbook Air.
http://www.apple-tubes.com/apple-macbook-air-11-mid-2013-haswell-i5-vs-i7-compar ison/
http://www.anandtech.com/show/7113/2013-macbook-air-core-i5-4250u-vs-core-i7-465 0u/2
I5 vs. I7 performance 13” Macbook Air 2013
Boot performance
11.7 I5 ……11.4 I7
Cinebench
1.1 I5….1.41 I7
IMovie Import and Opt.
6.69 I5….5.35 I7
IMovie Export
10.33 I5…8.20 I7
Final Cut Pro X
21.47 I5…17.71 I7
Adobe Lightroom 3 Export
25.8 I5….31.8 I7
Adobe Photoshop CS5 Performance
27.3 I5…22.6 I7

Is there a performance difference between Automation Plug-ins and the scripting system?

We currently have a tool that, through the scripting system, merges and hides layers by layer groups, exports them, and then moves to the next layer group. There is some custom logic and channel merging that occasionally occurs in the merging of an individual layer group. These operations are occuring through the scripting system (actually, through C# making direct function calls through Photoshop), and there are some images where these operations take ~30-40 minutes to complete on very large images.
Is there a performance difference between doing the actions in this way as opposed to having these actions occur in an automation plug-in?
Thanks,

Thanks for the reply. I ended up just benchmarking the current implementation that we are using (which goes through DOM from all indications, I wasn't the original author of the code) and found that accessing each layer was taking upwards of 300 ms. I benchmarked iterating through the layers with PIUGetInfoByIndexIndex (in the Getter automation plug-in) and found that the first layer took ~300 ms, but the rest took ~1 ms. With that information, I decided that it was worthwhile rewriting the functionality in an Automation plug-in.

Is the 8gb worth it compared to the 4gb? Is there a noticeable difference between a i5 and i7 core processor?

I am looking to buy a 13 inch mac book pro. I know that there is a 4gb version with a i5 core processor and also a 8gb with a i7 core processor. I am wondering if buying the upgraded one is worth the money. I play World of Warcraft so I am also wondering if the upgraded one will play the game better. Thanks.

Welcome to Apple Support Communities
The 13-inch MacBook Pro won't work correctly with the game. Go for a 15-inch MacBook Pro or an iMac. That's caused because of the GPU. The 13-inch MacBook Pro has only got an integrated GPU that isn't designed for games.
Apart from that, if you are decided to buy the 13-inch MacBook Pro, get it with 4 GB of RAM. You can upgrade it to 8 GB yourself and you will save money without voiding your warranty. Also, for games, you will note the difference with an Intel Core i7, even if the Intel Core i7 that has got the 13-inch MacBook Pro isn't the best i7

Is there a huge difference between the 2.0GHz and 2.2GHz MBP's?

I am wondering if there is a really big difference between the two models? The 2.0GHz model seems fine for doing college homework, papers, power point, photo editing, video editing, web surfing, not a heavy gamer, I make podcasts and YouTube videos. This is what I mainly do... Can someone tell me if maybe I might have to get the 2.2GHz? Thanks!

Spend the little more money for the 2.2Ghz your graphics potential is awesome and thus future proofs your machine a lot longer than 2.0 which the integrated and the discrete graphics are about the same lousy performance.
Also your resale value will be much higher and more willing buyers if you should ever need too.

Is there a big difference between the 2.6 and the 3.0?

I am getting a macpro, and will be doing video editing with final cut. Should I spend extra for the 2 3G processors or will the 2.6 prove to be enough power for editing with final cut?

Yes the 2.66GHz is powerful enough for video editing.
Be aware that while the 3GHz is "13% more powerful" for the most part you won't notice a difference as this difference will only come into play when your cores are being saturated which they won't be. While you're editing the difference will actually be in the low single digits if anything at all.
Now, when it comes to encoding and high continuous processing the difference will be noticed. Again, not rhe full 13% as this would require a full multi-threaded efficiency of FCS and Mac OS X which there isn't. You will get around a 8-10% difference though. So, on a 10 hour encode you're looking to save less than an hour on that time. Whether that's worth the difference to you I have no idea.
If you budget is tight then you're better off spending that money on the ATi X1900 XT, RAM and hard drives.

Is there a size difference between the ipad 1 and ipad 2?

I'm wondering about a survivor case for my ipad 1. They only come for ipads 2/3/4 is there a difference in the sizes? for case fitting?

Yes, the original iPad had a slightly different form factor than iPad 2 through iPad 4. iPad Air again changed the form factor.
EDIT
See the Dimensions row in the table here: http://en.wikipedia.org/wiki/IPad#Model_comparison
Message was edited by: Alfred DeRose

Why is there a color difference between my iPhone 4s and my new iPad?

I noticed that photos taken with my iPhone don't always display the same colors when displayed on my iPad.
What gives, they're both retina displays, right? Why not the same color balance?
Any easy fix or will periwinkle blue always look muddy, tending to magenta?

Oops!! And, I was also typing my answer 3 minutes behind you,
to boot.
When will I learn...
"Walt F. Schaefer" <[email protected]> wrote in
message
news:gbenmu$73k$[email protected]..
> Tim,
>
> Don't answer questions they don't ask. If you do they
will have no reason
> to come back and we'll have nothing to do.
>
> :-)
>
> --
>
> Walt
>
>
> "TC2112" <[email protected]> wrote in message
> news:gbenar$6m1$[email protected]..
>> Hello,
>>
>> It's because the browsers are using their default
margins for the UL as
>> you didn't set a value using CSS.
>>
>> You can change your navbar CSS to this, which sets
the margins to 0:
>>
>> #navcontainer ul
>> {
>> text-align: center;
>> padding: 5px 0px;
>> margin: 0;
>> background-color: #336699;
>> color: white;
>> width: 100%;
>> line-height: 18px;/* fixes Firefox 0.9.3 */
>> }
>>
>> Also, you'll notice the font-family is removed as
you already had it it
>> the body CSS.
>> The padding line means top and bottom padding is
5px, left and right is
>> 0px.
>>
>> Take care,
>> Tim
>>
>>
>>
>>
>> "Ruby7829" <[email protected]>
wrote in message
>> news:gbemcn$5m4$[email protected]..
>>> Why is there a large gap under my nav bar?
>>>
>>>
http://www.faceyourspaceorganizing.com/test_index.html
>>>
>>
>>
>
>

Is there a significant difference between the iPhone 5 and iPhone 6 camera?

Or is it only minor differences?

Check for yourself,
iSight Camera
iPhone 6+ iPhone 6 iPhone 5
New 8-megapixel iSight camera with 1.5µ pixels
New 8-megapixel iSight camera with 1.5µ pixels
8-megapixel iSight camera
Autofocus with Focus Pixels
Autofocus with Focus Pixels
Autofocus
ƒ/2.2 aperture
ƒ/2.2 aperture
ƒ/2.4 aperture
Optical image stabilization
True Tone flash
True Tone flash
LED flash
Five-element lens
Five-element lens
Five-element lens
Hybrid IR filter
Hybrid IR filter
Hybrid IR filter
Backside illumination sensor
Backside illumination sensor
Backside illumination sensor
Sapphire crystal lens cover
Sapphire crystal lens cover
Sapphire crystal lens cover
Auto image stabilization
Auto image stabilization
Auto HDR for photos
Auto HDR for photos
HDR for photos
Improved face detection
Improved face detection
Face detection
Exposure control
Exposure control
Exposure control
Panorama (up to 43 megapixels)
Panorama (up to 43 megapixels)
Panorama
Burst mode
Burst mode
Tap to focus
Tap to focus
Tap to focus
Photo geotagging
Photo geotagging
Photo geotagging
Timer mode
Timer mode
Timer mode
copied from http://www.apple.com/iphone/compare/

Is there a big difference between MSI K8N SLI and MSI K8N SLI Platinum motherboa

i am a bit tight on budget, so I was wondering if I should get the MSI K8N SLI motherboard instead of the MSI K8N SLI Platinum motherboard (my previous choice),.......what do u guys say ?

Hi,
Note that he is not talking about the Neo4 versions, looks like in the US MSI has different products:
Here is the K8N SLI:
http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_detail.php?UID=681
And here is the K8N NEO4 SLI:
http://www.msicomputer.com/product/p_spec.asp?model=K8N_Neo4/SLI&class=mb
One has Sound blaster, the other does not.
Besides, K8N SLI Platinum has only one LAN.
http://www.msi.com.tw/program/products/mainboard/mbd/pro_mbd_detail.php?UID=641
While the Neo4 Platinum has two.
http://www.msicomputer.com/product/p_spec.asp?model=K8N_Neo4_Platinum/SLI&class=mb
A bit confusing right !? Remember that this forum is accessed by people all over the world.
The thing is that the Neo4 and the related non-Neo are using the same BIOS AFAIK.
wpr

Difference between mastered for iTunes and previous versions?

Is there a noticeable difference between Mastered for iTunes albums and any previous versions? I purchased Bon Jovi's "Have A Nice Day (Special Edition)", and now it has been replaced with a Mastered for iTunes version. Is there any value or noticeable difference if I were to purchase the new version?

One of the inexpensive compilation downloads I purchased on iTunes was terrible, I'd much rather listen to the original mix of " I had too much to dream last night" than the remaster, which destroyed the song completely.
Well, there is really no way to improve on the sound of The Electric Prunes coming over an AM transistor radio!
I guess I'm suspicious of iTunes files in general. I am a dying breed, using separate amps and pre-amps and real speakers as well as Ultimate Ear earbuds and a great car system. The cuts that are engineered for iTunes are mixed for lo-fidelity appliances and just don't sound that good.
There are online download stores that cater to a more audiophile crowd. Check out HD Tracks.

Is there a noticeable difference between Dual Core i7 and Quad Core i7?

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