so i finally see the 5970 is out after the day i asked about running a 5870 or 5850's in deuce config on my little e8500. what clockspeed would unleash the full power of the 5970 on a intel e8500 chip ( 3.16ghz stock)?
It depends on the game, really. A CPU intensive one will be bottlenecked and a non-CPU (or GPU) intensive one will not be, so there is no simple answer. My suggestion would be to get a single 5870/50 and see if it is sufficient for your needs first, as it probably will be. If not, go into a little more detail on what your needs are.