hi, i want to update my GPU to either HD 7850 2GB or GTX 660 2GB, my CPU is AMD Athlon II X4 (Quad 3.0Ghz) will there be any bottleneck issues as i know i dont have the best CPU in the world
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It depends on what you'll be using the system for. If you primary use is gaming, then you'll be fine. If you will be doing a lot of high definition video editing, then the CPU will be holding you back.
Maybe a bit of a bottleneck in RTS and large multiplayer games but nothing huge.