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[SP,NH] AMD Trinity A8-4500M APU Benchmarked, Better Than Expected

post #1 of 11
Thread Starter 

LINK to Softpedia article (I prefer their explanations)

LINK to original on NordicHardware

 

Quote:
Advanced Micro Devices is going to launch its 32nm-based Trinity accelerated processing units this year (2012) and there is now some extra information on the line.
 
The dual-Piledriver A8-4500 was tested under the Folding benchmark.  In terms of floating point speeds, A8-4500M "Trinity" scored 1,655.51 points on one of the two systems tested, and 1,679.55 on another.  Meanwhile, A8-3500M "Llano" got 1,580.98, which means that the average difference is of 5.47% (in favor of Trinity).

The integer speed (basically the CPU math performance) is where Trinity shines though: its score of 5,214.95 / 5 662.48 is about 38.67% better than the Llano's 3,921.99.

 

Whether the integer test is supposed to be single-threaded or multi-threaded (we don't know), the results are exceptionally impressive.  Let me break this down with my views/thoughts/observations of the results:

  • If they are single threaded, this proves a 40+% IPC gain.  The 4500M is outperforming in IPS (instructions per second - IPC + clock speed) by nearly 40% while managing 200Mhz lower on the single threaded clock speed! (we know it is 2.2Ghz from the other article that was posted in hardware news).  That is a MASSIVE boost over Llano!
  • If they are multi threaded, this is still impressive.  Because the Bulldozer (now Piledriver) module is designed to offer better performance when only 1 core/module is used but only ~80% as much when both cores/module are used, BD/PD based processors should see lower multithreaded performance even at higher clock speed.  We know that this is a 2.2Ghz processor and with all 4 threads activated the Llano runs at 1.5Ghz.  Despite the multithreaded performance hit of 80%, it is outperforming Llano by 40%, at the same power consumption (35W TDP).  That is exactly what we want to be seeing with these new AMD processors thumb.gif
  • And bear in mind that if this IS a multithreaded result, then that means the single-threaded gains would be even more impressive because of the INT/FP imbalance in the modules!  From an extrapolation/estimation of these results in the sentences following, dividing between cores/clock speed and taking the average between the two measurements assuming a flat 80% performance loss applying to this task with 2 cores/module loaded as opposed to 1/module, then the Trinity APU gets a score of 1669.6/full core compared to Llano's 980.49/core.  Trinity APU has a 46.6% clock speed advantage on all 4 cores.  On a per core, per ghz basis, Trinity scores 759 while Llano scores 653.66.  If these extrapolated results are anywhere close to accurate, then Trinity has a 16% IPC improvement over Llano mobile APU on top of an IPS (higher clock speed) improvement - higher so over Bulldozer, of course - and at the same power consumption.  Marvellous!

 

Keep in mind that the cores in Trinity APU do not have L3 cache.  This means the desktop Piledriver CPU results shall be even more impressive.

 

Should everything be true, of course.

post #2 of 11
I have high hopes for Trinity and Piledriver.
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post #3 of 11
xd_1771, after reading your thoughts, I have this urge to respond with...

Of course. wink.gif
 
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post #4 of 11
Looking very very good.
post #5 of 11
Wow... that's like... a lot faster.

Hopefully the rest of Trinity APU's and corresponding applications are equally impressive. If so, we have a huge HUGE winner.
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post #6 of 11
Quote:
Originally Posted by xd_1771 View Post

LINK to Softpedia article (I prefer their explanations)
LINK to original on NordicHardware


Whether the integer test is supposed to be single-threaded or multi-threaded (we don't know), the results are exceptionally impressive.  Let me break this down with my views/thoughts/observations of the results:
  • If they are single threaded, this proves a 40+% IPC gain.  The 4500M is outperforming in IPS (instructions per second - IPC + clock speed) by nearly 40% while managing 200Mhz lower on the single threaded clock speed! (we know it is 2.2Ghz from the other article that was posted in hardware news).  That is a MASSIVE boost over Llano!
  • If they are multi threaded, this is still impressive.  Because the Bulldozer (now Piledriver) module is designed to offer better performance when only 1 core/module is used but only ~80% as much when both cores/module are used, BD/PD based processors should see lower multithreaded performance even at higher clock speed.  We know that this is a 2.2Ghz processor and with all 4 threads activated the Llano runs at 1.5Ghz.  Despite the multithreaded performance hit of 80%, it is outperforming Llano by 40%, at the same power consumption (35W TDP).  That is exactly what we want to be seeing with these new AMD processors thumb.gif
  • And bear in mind that if this IS a multithreaded result, then that means the single-threaded gains would be even more impressive because of the INT/FP imbalance in the modules!  From an extrapolation/estimation of these results and assuming a flat 80% performance loss with 2 cores/module used on Trinity, then the Trinity APU gets 1669.6/core compared to Llano's 980.49/core.  Trinity APU has a 46.6% clock speed advantage on all 4 cores.  On a per core, per ghz basis, Trinity scores 759 while Llano scores 653.66.  If these extrapolated results are to be accurate, then Trinity has a 16% IPC improvement over Llano mobile APU on top of an IPS (higher clock speed) improvement - higher so over Bulldozer, of course.  Marvellous!

Keep in mind that the cores in Trinity APU do not have L3 cache.  This means the desktop Piledriver CPU results shall be even more impressive.

Should everything be true, of course.

Dresdenboy looked at Trinity boinc performance relative to Llano and bulldozer cpu's on his blog. He found some improvement, but not anywhere near what you calculated except in interger performance vs bulldozer (+20%)
http://citavia.blog.de/2012/04/08/trinity-piledriver-performance-13460109/
Edited by nub - 4/10/12 at 4:17pm
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post #7 of 11
Hellooo, Piledriver. biggrin.gif
    
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post #8 of 11
Looking forward to Trinity, but Vishera more.

XD contrary to your previous thoughts, i do believe desktop PD is a different version of cores than what Trinity will be using.
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post #9 of 11
But can it play Skyrim?
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post #10 of 11
Cant wait!
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