3DMark Vantage and feature tests
The default vantage test has both CrossFire setups heading all others, with the 9800 GTX SLI a little way behind.
It's no surprise, then, that the Radeon HD 4850 and 4870 score well in the single-GPU evaluation, too.
But we're more interested in the feature tests, in particular tests four and six.
Test four, GPU Cloth, stresses the vertex shading, geometry shading and stream-out features of the hardware, where stream out is used to recycle the cloth vertices, according to Futuremark.
There doesn't seem to be much happening with the multi-GPU setups. Ignoring them, NVIDIA has a slight lead over ATI.
Test six, Perlin Noise, is a technique used for procedural texturing. As such, it's highly maths-intensive to compute in a pixel-shader and stresses the arithmetic (read grunt) of a GPU.
Hello! Math-intensive (read shader-intensive) workload? The 1.2TFLOPS Radeon HD 4870 almost beats out a GeForce GTX 280 and keeps the 9800 GTX SLI at bay. CrossFire results are, well, off the scale. 2.4TFLOPS, anyone?
