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DX9 Capable for OpenGL
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| ATi FireGL X1 DX9 Capable for OpenGL | |
| (Review by MS, Oct 15, 2003) |
Springmark
Springmark is a spring consisting of 1 million vertices per coil that is rotated in space. The number of vertices can be altered in multiples of 1 million (corresponding to 1 coil each). The frames per second are inversely correlated to model size and number of vertices the GPU is capable of generating. Each loop occupies 36 MB of memory, either onboard or within the system main memory where it needs to be accessed via the AGP interface, which, by extension, becomes one of the limiting factors. If the model size exceeds the amount of free system memory, the swapfile needs to be accessed - with catastrophic results for the performance.
Click for larger image
FireGL X1 (red) vs. Quadro (yellow) vs. Wildcat (green). Colored lines with black dots are fps depending on the model size, black lines with the corresponding colored dots are vertices rendered per second. Both the Wildcat and the Quadro show pretty much a flat line when it comes to vertices per second, whereas the FireGL shows blazing performance with a model size below 64 MB memory but then falls off to the last place as soon as the AGP pathway needs to be accessed for additional storage space, which is consistent with the Phoenix results
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