I'm trying to decide whether to go with the ASUS GTX660 TI-DC2O-2GD5 or Asus GTX660 TI-DC2OC-3GD5 Other than the increased memory size will the differences between cards affect performance? Also according to the specs listed on Newegg The Asus GTX660 TI-DC2OC-3GD5 looks like it doesn't support OpenGL. Is that just a misprint on the ad?