Nvidia.
Overkill for that res![]()
Mine is silky smooth after turning off the vsync for this game via fallout.ini file, it's in your save game folder in "my documents\my games", and change the setting iPresentinterval=1 to iPresentinterval=0.
It's the large open spaces that where the fps drop occurs 8 - 9 /10. Wonder if its my antivirus? Running avast free edition.
That would suggest a driver issue. Did you fully uninstall the catalyst drivers and driver clean after swapping out the 4870 for the 4870X2?Another important point is that when I first installed it I had a 512mb 4870, it detected my system @ ultra, now with an x2 it auto detected it as medium lol ??