Well so far with PowerStrip reporting 306core/261mem, I ran serveral runs of QIII time demo's followed by 1 1/2hrs of RTCW at 1024x768 32bit everything maxed, and did'nt see one snowflake,spot,tilde key looking squigly or nothing.
Not bad for an OEM with 4ns ram, but I will play with the ram speed a little more till I see spots then back it off 3-5MHz.