Linked by Thom Holwerda on Wed 7th Mar 2012 22:59 UTC
Apple And it was that time of the year again - Apple held one of its product announcements. This one focussed on the iPad mostly, and while some will call it a disappointment merely because virtually everything had already been leaked, I'm still in awe over the fact the newly announced iPad has a 2048x1536 display. My mind is blown.
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RE: CPU
by nefer on Thu 8th Mar 2012 21:53 UTC in reply to "CPU"
nefer
Member since:
2012-02-15

I think quad core graphics are much more useful than quad core cpus on tablets.

Even on desktops, quad core CPUs are seldomly used to their full extent and more than often the extra cores are left twiddling their thumbs.

It makes much more sense using that SoC real estate to things that DO make a difference, such as graphical performance on a display which is now four times bigger.

Reply Parent Score: 2

RE[2]: CPU
by Morgan on Fri 9th Mar 2012 07:59 in reply to "RE: CPU"
Morgan Member since:
2005-06-29

I think quad core graphics are much more useful than quad core cpus on tablets.


I'd say that is generally true, modern tablets use the GPU to draw everything you see on the screen, whereas the CPU usually just handles the background stuff. This is especially obvious on older tablets and e-readers that don't have an accelerated GPU.

Even on desktops, quad core CPUs are seldomly used to their full extent and more than often the extra cores are left twiddling their thumbs.


At my part time job, I use a quad core i5 machine and it's definitely overkill. Though I have had to run a compiler occasionally, I'm not a programmer by trade and I just use Dev-C++ which (to my knowledge) is not optimised for quad cores. On my dual-core AMD at home, however, I get a lot of use out of both cores as I tend to do a lot of movie transcoding and game playing.

It makes much more sense using that SoC real estate to things that DO make a difference, such as graphical performance on a display which is now four times bigger.


I think that alone is why Apple chose to move to a quad core GPU; it may seem like overkill but at least they have the horsepower to push all those pixels and then some. I can imagine the train wreck of trying to support such a resolution on a dual core mobile GPU, given that my Nvidia desktop board at home struggles with 1600x900 in some games.

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RE[2]: CPU
by vivainio on Fri 9th Mar 2012 15:43 in reply to "RE: CPU"
vivainio Member since:
2008-12-26

I think quad core graphics are much more useful than quad core cpus on tablets.


But quad core graphics doesn't mean anything generally.

Do I have 480 core graphics since I have gf gtx 480?

I agree that fast graphics is important, but "quad core graphics" does not mean fast graphics (while quad core cpu generally does mean fast cpu). Does anyone outside Apple talk about quad core graphics?

Reply Parent Score: 2

RE[3]: CPU
by akrosdbay on Fri 9th Mar 2012 15:48 in reply to "RE[2]: CPU"
akrosdbay Member since:
2008-06-09



But quad core graphics doesn't mean anything generally.

Do I have 480 core graphics since I have gf gtx 480?

I agree that fast graphics is important, but "quad core graphics" does not mean fast graphics (while quad core cpu generally does mean fast cpu). Does anyone outside Apple talk about quad core graphics?


Quad core CPU doesn't mean fast cpu either. It means more throughput not faster. For carrying cargo a truck has more throughput than a ferrari.

Apple markets the quad core gpu as means to drive the massive pixels in the new high res display. The new GPU was linked to the retina display announcement. 4x the number of pixels means you need the horsepower and throughput to put them on screen.

Edited 2012-03-09 15:50 UTC

Reply Parent Score: 1

RE[3]: CPU
by nefer on Fri 9th Mar 2012 17:18 in reply to "RE[2]: CPU"
nefer Member since:
2012-02-15

But quad core graphics doesn't mean anything generally.


*chokes*

You aware that graphics are massively parallelizable, right?


but "quad core graphics" does not mean fast graphics (while quad core cpu generally does mean fast cpu)


You have it the other way around. Graphics are much more parallelizable than general purpose computing. Hence the reason why you'll find a multitude of processing cores on modern graphic processors.

Edited 2012-03-09 17:19 UTC

Reply Parent Score: 0

RE[3]: CPU
by phoenix on Fri 9th Mar 2012 22:29 in reply to "RE[2]: CPU"
phoenix Member since:
2005-07-11

In the realm of ARM, "quad-core" graphics literally means "4 GPUs". Especially when it comes to the PowerVR GPUs. An SGX543 has 1 GPU "core" (ie, 1 GPU). An SGX543MP2 has 2 GPU "cores" (ie, 2 GPUs). And, an SGX543MP4 has 4 GPU "cores" (ie, 4 GPUs).

In the ARM GPU sphere, "multi-core" means "multi-GPU". Think of it in terms of nVidia's SLI and Ati's CrossFire. Not in terms of processing units inside the individual GPUs.

Reply Parent Score: 2