The PowerColor X1950 Pro SCS3 is somewhat slower than the GeForce 7950 GT in low resolutions but overtakes it in higher ones due to its more advanced memory controller. Performance is everywhere high enough for as comfortable game experience as you may wish.
On the Research level the gap is smaller even at 1280x1024 because the 24 TMUs of the GeForce 7950 GT aren’t used to the full then whereas the 36 pixel shader processors of the PowerColor X1950 Pro SCS3 come in handy for calculating per-pixel lighting.
The 3-year-old Far Cry is still quite a demanding application in HDR mode, at least it feels such for today’s $199 and cheaper graphics cards. The PowerColor X1950 Pro delivers high performance in 1280x1024 resolution, but you’d better avoid higher display resolutions on graphics cards of this class, including the GeForce 8600 GTS. The Radeon X1900 XT is an exception, ensuring a frame rate of 55-60fps in 1600x1200.