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[Various] Socket AM1 "Kabini" APUs - Page 46  

post #451 of 778
Quote:
Originally Posted by CynicalUnicorn View Post

It has four Jaguar cores and two GCN cores. Assuming Jaguar = Piledriver, then one GCN core would have to perform as well as six Piledriver cores. For heavy floating-point workloads, definitely, given that GPUs are awesome at that and Bulldozer and its successors are especially bad at it.

Jaguar cores are cores not modules like Piledriver.
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post #452 of 778
Not to mention that one PD FPU is equivalent to nearly two Phenom FPU's.
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post #453 of 778
Quote:
Originally Posted by KarathKasun View Post

Not to mention that one PD FPU is equivalent to nearly two Phenom FPU's.
IPC isn't determined by the power of the floating point unit. Do not confused GFlops with IPC.
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post #454 of 778
Quote:
Originally Posted by mikeo01 View Post

Actually, why couldn't they just replace the GCN cores with good old x86 cores anyway? Why wouldn't that work and what would stop them?

Because a 6800k (That's right, before Kaveri) is faster at video encoding with OpenCL using it's GPU than an 3960X. Not an 100% realistic comparison as I know Alatar among others will try to tell me (Again) but that's missing the point: Using the GPU can bring a medicore quad core to performance levels nearing the fastest Hexacore with HT. People who are still against APUs really need to read up on why they are so good..Just need developer support. Even without it there's benefits from it, though.
Quote:
Originally Posted by Seronx View Post

IPC isn't determined by the power of the floating point unit. Do not confused GFlops with IPC.

IPC also means completely nothing on its own, shown by Piledriver generally clocking 600-800Mhz faster than Phenom II.
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post #455 of 778
Quote:
Originally Posted by Brutuz View Post

Because a 6800k (That's right, before Kaveri) is faster at video encoding with OpenCL using it's GPU than an 3960X. Not an 100% realistic comparison as I know Alatar among others will try to tell me (Again) but that's missing the point: Using the GPU can bring a medicore quad core to performance levels nearing the fastest Hexacore with HT. People who are still against APUs really need to read up on why they are so good..Just need developer support. Even without it there's benefits from it, though.
IPC also means completely nothing on its own, shown by Piledriver generally clocking 600-800Mhz faster than Phenom II.
Instructions per clock are themselves don't really go up if they can't be put to use in most applications due to poor mediocre programming.
I concur that HSA and the APU are the future I just wish they would get more applications written with them in mind starting with browser acceleration to save battery life.
post #456 of 778
This is the issue though, developer support. I don't think AMD can solely place their bets on it; they need to improve their cores anyway, then let applications take advantage. Otherwise for non-HSA applications it just becomes another "chip" which performs similar to the previous generation. Which is gutting.
post #457 of 778
Quote:
Originally Posted by mikeo01 View Post

This is the issue though, developer support. I don't think AMD can solely place their bets on it; they need to improve their cores anyway, then let applications take advantage. Otherwise for non-HSA applications it just becomes another "chip" which performs similar to the previous generation. Which is gutting.
Agreed and Lisa indeed said that single core perf is still too important to not significantly improve
post #458 of 778
Quote:
Originally Posted by maarten12100 View Post

Agreed and Lisa indeed said that single core perf is still too important to not significantly improve

Single core performance is where AMD lets itself down frown.gif if they'd improve single core performance I'd choose AMD for all my builds.

Single core performance matters greatly, in fact, not a lot of software uses multi-threading or multi-threading efficiently. A lot of software relies heavily on one core.

We know AMD can do multi-threading, we know they are great at that, but honestly, right now 4 strong cores > 8 weak cores. IPC matters.
post #459 of 778
Quote:
Originally Posted by mikeo01 View Post

Single core performance is where AMD lets itself down frown.gif if they'd improve single core performance I'd choose AMD for all my builds.

Single core performance matters greatly, in fact, not a lot of software uses multi-threading or multi-threading efficiently. A lot of software relies heavily on one core.

We know AMD can do multi-threading, we know they are great at that, but honestly, right now 4 strong cores > 8 weak cores. IPC matters.

Name me some software used today that still uses one core rolleyes.gif
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post #460 of 778
Quote:
Originally Posted by bencher View Post

Name me some software used today that still uses one core rolleyes.gif

That is even remotely stressful on hardware.
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