I've got the Sapphire 6850 in my oldest AMD rig. That's the one I am passing on. There's what Heaven v2.1 looks like @ 1920x default on the 6850 @ 945|1150 stock volts. I believe that's right on par with a stock 6870. Of course an OCed 6870 will bury it. Nvidia's offerings like the 460 1Gb are faster in tess more often than not as well when OCed.