Anyone running x850xt crossfire setup? I recently came into this setup for very cheap and am wondering how much useful life these cards have compared to todays value cards in crossfire. I.E. x1650 pro. Can anyone shed some light on this subject as the majority of online hardware reviews dont compare the two and also don't have very modern benchmarks like FEAR or Oblivion running in crossfire on these cards.I don't game at high resolutions as my monitor only supports 1280x720 max res.Basically I'm not asking for benchmark numbers I'm just curios how newer games feel when using these cards at medium res. Any input?