i was going to buy a 290x gfx because its not much worse than a 780ti and a lot cheaper and i was going to get the powercolor card which comes with free ram so even a better bonus but i'm new to pc and from what i've heard nvidia drivers are better or more developed than amd drivers.
so i just wanted pros and cons of both camps and which would be easier to setup to a nooby like me?
i would be playing games like dayz/cs:go/crisis/bf4/cod etc
AMD drivers are fine and updated more often than Nvidia ones....
The question is always
a) Are you willing to pay premium for an Nvidia
b) Are you thinking to go to 4K with that GPU?
The answer on A is subjective always. Every single person in here has an opinion for what they like (like religion or a football team) and a list of cons against the others.
As cards go, AMD make more sense because they are as powerful, by far cheaper and come with goodies.
So comes to B.
If you plan to go down the route to multi GPU solution to have the best 4K experience, get either. AMDs are cheaper to do that also. (and have better bus and more VRAM)
If however you are in a stop-gap graphic card, and you plan to buy a 4K monitor and see how the future unfolds, get an Nvidia and a 4K monitor with GSync module.
The reason is that low fps (all way to 30), will be smoothed out by the Gsync module, and then you see how things unfold with a future upgrade.
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Regarding Mantle, you should only consider it in the Pros-Cons list to make your mind, if you have AMD CPU. If you have Intel i5 or better, ignore that exists. (you will benefit yes, but not as much as with an AMD Cpu).
As for PhysX, 8 years in the market and rarely we see more than ONE good game PER YEAR that support it. And haven't played a game that support PhysX since forever, even if almost always had an Nvidia card.
But when is support it................
Hope I helped.
So all in all, price/performance wise get the AMD. Cannot be beaten.