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Old 15-Jul-2006, 16:12   #1
pc999
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Default Can someone explain me why ...

Is GoW (UE3?) using so litle the XeCPU?

Looking at this, we see on slide 17 that the game is only using ~5,5 gflops ie less than 10% of a flops intensive/friendly CPU architeture.

Once this is a game made for some good time ago for this machine in specific I would guess that it would be prepared for the machine, so this is not because they are worried with single core P4s that must run it.

Anyone knows why are they pushing so litle from it (its FPUs?)?

Thanks in advance.
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Old 15-Jul-2006, 16:20   #2
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I don't think those numbers relate to any particular game. I think they're just meant to illustrate the relative demands of different types of code in a 'typical' game, or typical UE3 game perhaps.
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Old 15-Jul-2006, 16:44   #3
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Quote:
Originally Posted by Titanio
I don't think those numbers relate to any particular game. I think they're just meant to illustrate the relative demands of different types of code in a 'typical' game, or typical UE3 game perhaps.
If so I guess it will take a good while till UE3 games push something ven near the 20% of the CPU.

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Originally Posted by Powderkeg
They don't need to use more in order to make the game do what they want.
Then why they still cant have good fremerate (not even talking about 60FPS great for gameplay), none complained about the BW, memory (in fact they have 2x than expected) or the GPU, also the could really use better animation (more physics would be a big plus too).




Wouldnt this mean that the game would fly on a (single core) PC (or even a 2x faster XCPU) that can do much more than this and flops is the only advantage of XeCPU.
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Old 15-Jul-2006, 16:48   #4
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Quote:
Originally Posted by pc999
If so I guess it will take a good while till UE3 games push something ven near the 20% of the CPU.
It's going to be very dependent on the game. There really is no such thing as a typical game, I wouldn't read too much into these numbers. He was just giving a rough idea of the relative computational intensity of different types of code (and using fp to do that, which wouldn't necessarily cover everything the CPU was doing anyway).
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Old 15-Jul-2006, 20:08   #5
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Quote:
Originally Posted by pc999
Then why they still cant have good fremerate (not even talking about 60FPS great for gameplay), none complained about the BW, memory (in fact they have 2x than expected) or the GPU, also the could really use better animation (more physics would be a big plus too).
Since when did your frame rate depend exclusively on the FLOP output of your CPU?

And what evidence do you have that the final version of GOW will have frame rate problems?




Quote:
Wouldnt this mean that the game would fly on a (single core) PC (or even a 2x faster XCPU) that can do much more than this and flops is the only advantage of XeCPU.
This means nothing if the limiting factor of performance is the memory bandwidth. If that's the case then you can put any CPU you want in there and it wouldn't make a bit of difference.
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Old 16-Jul-2006, 15:48   #6
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Sweeney explicitly states that they are getting roughly 500 GFlops of processing out of the Xenos right now!? How is that possible?
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Old 16-Jul-2006, 16:40   #7
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Quote:
Originally Posted by blakjedi
Sweeney explicitly states that they are getting roughly 500 GFlops of processing out of the Xenos right now!? How is that possible?
He's not talking explicitly about the Xenos there, but about the demands of the UE3 (on all platforms) in general. And 500 Gflops sounds much, but it's quite easily achievable counting shader ops.
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Old 15-Jul-2006, 16:21   #8
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They don't need to use more in order to make the game do what they want.



And that's true of just about every game on almost any system. The day games are made to use the full processing power without any thought given to the need to do so will be the day you stop playing games and start watching nothing but tech demos.
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