3DMark Vantage, and feature tests
It's no surprise that the Sapphire X2 does well in 3DMark Vantage's default tests; AMD's hardware has always cashed-in here.
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.
Hmm. We expected better, and the test doesn't pick up on the second GPU at all.
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.
The GeForce performance has dropped significantly with the ForceWare 177.79 drivers which support PhysX support. The Sapphire X2 stands alone.
