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First off, it's aimed at the 6900 series cards but runs fine on the 5800 too since there's not any major chipset difference except a few scaling and speed tweaks really, must say though for the 655mb size I was completely unimpressed with it, most of the old demos...
amd
art
catalyst
deferredlighting
demo
depthoffield
development
directx 11
gameengines
gaming
graphics
graphicscards
hd 6900
performance
physics
postprocessing
radeon
techdemos
tessellation
windows vista