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MoP is way more demanding than Cata, esp at 1920. id get 79xx or 670+
AMD or Nvidia are fine. You won't get uber performance increases out of an Nvidia card. Either sides card of a decent spec will be like bringing a Ferrari to a push-bike race, so don't let anyone tell you changing your Ferrari for a Lambo will make any real world difference.
7850 is fine,i run everything on ultra except for liquid detail which is on high as the GPU has to render everything twice for the reflections. Blizzard themselves suggest leaving this setting on high unless you have a high end card.
Tbh WoW is far more dependent on a good cpu.
cant really buy a gpu for one game. gotta take a wider view.
Is there any particular reason why your current card wont work in Windows 8? Maybe start a thread on that, and try and get your current card working. If your on a budget i cant think of a cheaper way of solving your problem.![]()
And if he only plays one game?