Got this from neowin but couldn't find the thread that calculated this.
http://www.neowin.net/forum/index.php?showtopic=321672&st=0
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Here are the facts: Nvidia uses separate Vertex and Pixel Shaders, ATI uses a Unified Shader which does both Vertex and Pixel Shading using the same Shader. When Nvidia calculates performance, it totals both Vertex and Pixel Shaders running at peak efficiency. When ATI calculates performance, it totals the performance of the single unified shader (composed of both Pixel and Vertex shaders) at peak efficiency. So this means that in order to compare ATI's performance to Nvidia's, you would double the rated performance.
PS3:
CPU=0.25 TFlops
GPU=1.80 TFlops for both Pixel and Vertex Shaders
XBOX360:
CPU=0.18 TFlops
GPU=0.88 TFlops for Unified Shaders=1.75 TFlops for combined Pixel and Vertex Shaders
So the PS3 has a total theoretical of about 2 TFlops and XBox 360 has about 1.9 TFlops (counting Pixel and Vertex shaders separately, as thr PS3 does).
Check out the www.beyond3d.com forums, they have the complete detail of what is written up there
http://www.neowin.net/forum/index.php?showtopic=321672&st=0
--------------------------
Here are the facts: Nvidia uses separate Vertex and Pixel Shaders, ATI uses a Unified Shader which does both Vertex and Pixel Shading using the same Shader. When Nvidia calculates performance, it totals both Vertex and Pixel Shaders running at peak efficiency. When ATI calculates performance, it totals the performance of the single unified shader (composed of both Pixel and Vertex shaders) at peak efficiency. So this means that in order to compare ATI's performance to Nvidia's, you would double the rated performance.
PS3:
CPU=0.25 TFlops
GPU=1.80 TFlops for both Pixel and Vertex Shaders
XBOX360:
CPU=0.18 TFlops
GPU=0.88 TFlops for Unified Shaders=1.75 TFlops for combined Pixel and Vertex Shaders
So the PS3 has a total theoretical of about 2 TFlops and XBox 360 has about 1.9 TFlops (counting Pixel and Vertex shaders separately, as thr PS3 does).
Check out the www.beyond3d.com forums, they have the complete detail of what is written up there