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Well i've just tried installed them
Besides wiping my x-fi xtremegamer of sound (re-install after driver sweeper got my sound back) these seem damn good for me (weird how now n again i get loss of sound when doing new ati drivers, happened now n again on abit ip35 pro also)
If it helps rough rig specs below
Sapphire 4870 512
Q6600 @ 3.6ghz
4x2 8500 ddr2 @ 1066
GA x48 dq6
Vista Ultimate x64
So based on that graphs, 9.5 still better than 9.6?