ATI Radeon X1900 XT and XTX
The world's fastest graphics cards?
F.E.A.R. is fast becoming a poster child for fragment-shader bound games, with an approximately 7:1 ALU:TEX ratio in its PS programs. The R580 is therefore well designed to take on F.E.A.R.'s game engine.
The X1900 XT is 17 per cent faster than X1800 XT at the highest resolution with IQ on, while the X1900 XTX is over 46 per cent faster than GTX 512. Yay for lots of ALUs!
Despite being a bit old, Splinter Cell: CT maintains a rough 5:1 ALU:TEX ratio in its main fragment shader programs on SM3.0 hardware. There's a 17 per cent win for the X1900 XTX over the GTX 512, the X1900 XT is 14 per cent faster even with a four per cent engine clock deficit.
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