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[TGD] How many FLOPS are in game consoles? - Page 2

post #11 of 39
Quote:
Originally Posted by VulcanDragon View Post
Agree. There is simply no way in hell that the PS3's GPU puts out that much horsepower. They have it listed as nine times more powerful than the Cell processor, which was designed specifically for this kind of stuff! No way in frickin hell.

I don't think anyone is surprised to see the Cell outperforming its peers, however.
According to Sony's press release from the PS3 launch, the total console is indeed capable of 2TFLOPS.

Quote:
With an overwhelming computing power of 2 teraflops
Source
Farther down in the release, it lists the CPU as capable of 218GFLOPS and the GPU as 1.8TFLOPS. I thought it was a type at first too until I looked it up. Too bad PS3 doesn't have that many great games to take advantage of that...
Edited by darkcloud89 - 5/26/08 at 7:19am
post #12 of 39
Quote:
Originally Posted by darkcloud89 View Post
According to Sony's press release from the PS3 launch, the total console is indeed capable of 2TFLOPS.



Farther down in the release, it lists the CPU as capable of 218GFLOPS and the GPU as 1.8TFLOPS. I thought it was a type at first too until I looked it up. Too bad PS3 doesn't have that many great games to take advantage of that...
But... how? That implies that the PS3's GPU has more graphical horsepower than tri-sli'ed 8800 ultra's.
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post #13 of 39
Quote:
Originally Posted by alexgheseger View Post
I think there's a typo there... I'm pretty sure the PS3's GPU can't put out 1.8 Tflops
Quote:
Originally Posted by VulcanDragon View Post
Agree. There is simply no way in hell that the PS3's GPU puts out that much horsepower. They have it listed as nine times more powerful than the Cell processor, which was designed specifically for this kind of stuff! No way in frickin hell.

I don't think anyone is surprised to see the Cell outperforming its peers, however.

Edit - Just realized that this is a duplicate post, by the way. The earlier post is here: http://www.overclock.net/video-game-...-consoles.html
Quote:
Originally Posted by darkcloud89 View Post
According to Sony's press release from the PS3 launch, the total console is indeed capable of 2TFLOPS.



Farther down in the release, it lists the CPU as capable of 218GFLOPS and the GPU as 1.8TFLOPS. I thought it was a type at first too until I looked it up. Too bad PS3 doesn't have that many great games to take advantage of that...
I'm guessing they switched CPU and GPU performance. It makes perfect sense if the GPU is 218 GFLOPS instead, slightly lower than the 360's.
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post #14 of 39
... and yet theres still frame rate losses in GTAIV
    
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post #15 of 39
The PS3 GPU is on par with a 7900GT.

To get the 1.8TFLOP figure, Sony either lied outright, or came up with some some very creative way to calculate FLOPS.

Also, the Cell processor is not a GPU and cannot at all match a GPU in rendering horsepower.

The true power of the graphics chip in the PS3 is only 364 GFLOPS, but that is still 50% more than the entire Cell chip (when the cell is only doing single precision work).

The Cell is not 1TFLOP, it's not even close.

http://www.ibm.com/developerworks/po...y/pa-cellperf/

Add up all the SPEs and the PPC core, and you get less than 250 GFLOPS, best case scenario.
Edited by Blameless - 5/26/08 at 7:38am
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post #16 of 39
Quote:
Originally Posted by alexgheseger View Post
But... how? That implies that the PS3's GPU has more graphical horsepower than tri-sli'ed 8800 ultra's.
Yea I'm not quite sure how they came up with that number.
According to the wikipedia article, RSX runs at 500MHz with 24 pixel pipelines (27FLOPS per cycle) and 8 vertex pipelines (10FLOPS per cycle).
((24*27) + (8*10)) * 500MHz = 364GFLOPS.

Quote:
Originally Posted by Blameless
To get the 1.8TFLOP figure, Sony either lied outright, or came up with some some very creative way to calculate FLOPS.
That's exactly what I'm thinking. If they didn't lie, I'd like to know how the hell they calculated the power.
post #17 of 39
Quote:
Originally Posted by alexgheseger View Post
I think there's a typo there... I'm pretty sure the PS3's GPU can't put out 1.8 Tflops
The Core chip is powerful, but not that powerful.
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post #18 of 39
Guys it's backwards. GPU is 218, the cell CPU is 1800
then the GPU would be only marginally better than the XB360 GPU, which is whats really true.
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post #19 of 39
The ps3 has the RSX gpu isnt it..basically 2 6800ultras in SLI??
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post #20 of 39
look how fast it folds.
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