I'm using this build an Xenonblade works Flawless without crashes.
AMD Phenom II X4 955BE 3.2 Ghz Quad Core
HIS ATI 4870 512mb GDDR5
4 gig DDR2 Ram
Windows7 x64 Ultimate
HIS ATI 4870 512mb GDDR5
4 gig DDR2 Ram
Windows7 x64 Ultimate