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[EXT] Engineers boost AMD CPU performance by 20% without overclocking

post #1 of 93
Thread Starter 
Quote:
Engineers at North Carolina State University have boost the performance of an AMD Fusion APU by more than 20%. This speed-up was achieved purely through software and using commercial silicon. No overclocking was used.
 
To achieve the 20% boost, the researchers reduce the CPU to a fetch/decode unit, and the GPU becomes the primary computation unit. This works out well because CPUs are generally very strong at fetching data from memory, and GPUs are essentially just monstrous floating point units. In practice, this means the CPU is focused on working out what data the GPU needs (pre-fetching), the GPU’s pipes stay full, and a 20% performance boost arises.
 
For what it’s worth, this kind of CPU/GPU integration is exactly what AMD is angling for with its Heterogeneous System Architecture). AMD has a huge advantage over Intel when it comes to GPUs, but that means nothing if the software chain (compilers, libraries, developers) isn’t in place.
 
The co-author of the paper, Huiyang Zhou, was kind enough to send us the research paper. It seems production silicon wasn’t actually used; instead, the software tweaks were carried out a simulated future AMD APU with shared L3 cache (probably Trinity). It’s also worth noting that AMD sponsored and co-authored this paper.

 

Exciting
SOURCE HERE

post #2 of 93
So... redemption?
Sovereign
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post #3 of 93
Was hoping this was about Bulldozer when I read the title only. redface.gif
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post #4 of 93
Pretty awesome thinking from those guys
post #5 of 93
When I saw engineers and performance boost, I just thought more cores but I was wrong. This is awesome. Hope we can do this with Trinity. Give us the software and we'll be able to stomp Intel's mobile offerings.
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post #6 of 93
Thread Starter 
Quote:
Originally Posted by dmasteR View Post

Was hoping this was about Bulldozer when I read the title only. redface.gif


That doesn't matter.  This is pointing to an exciting future where AMD might be selling APUs only, but you can still pair those with an external GPU and make use of the internal GPU to improve CPU processing in such way! wink.gif


I think this is the point AMD is trying to come across.  With very efficient coding and AMD's APU advantage, having just plain CPUs will soon become unnecessary.  AMD will have every edge over the competitor with an APU that is capable of running as it is now with CPU cores and an integrated GPU core used for GPU functions with excellent power consumption, or the APU can run with both CPU and GPU cores used for CPU compute functions with an external GPU being used for GPU functions - all while maintaining excellent power efficiency.  It is perfect for us desktop PC users in just the same way.

post #7 of 93
Quote:
Originally Posted by xd_1771 View Post

That doesn't matter.  This is pointing to an exciting future where AMD might be selling APUs only, but you can still pair those with an external GPU and make use of the internal GPU to improve CPU processing in such way! wink.gif
I think this is the point AMD is trying to come across.  With very efficient coding and AMD's APU advantage, having just plain CPUs will soon become unnecessary.  AMD will have every edge over the competitor with an APU that is capable of running as it is now with CPU cores and an integrated GPU core used for GPU functions with excellent power consumption, or the APU can run with both CPU and GPU cores used for CPU compute functions with an external GPU being used for GPU functions - all while maintaining excellent power efficiency.  It is perfect for us desktop PC users in just the same way.

Oh no I completely agree, it just wasn't what I was expecting when I read the title only before I read the article is all.
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post #8 of 93
Until it's out and in people's hands, I no longer care about potential or expected performance. While these things seem nice, it feels like more false hope to AMD fans.
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post #9 of 93
Man I was so so with trinity but after seeing what can be done...very nice.
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post #10 of 93
Quote:
Originally Posted by pwnzilla61 View Post

Man I was so so with trinity but after seeing what can be done...very nice.

Well, Trinity seems to have a pretty powerful GPU so doing this with Trinity would be...wow.
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Trinity
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