Please help me upgrade my rig!

Need help deciding what component to upgrade and what could become a bottleneck.

CPU: Intel i7 3770k
GPU: 2x Radeon HD7770s (1GB) Crossfired
Mono: z77 pro3
PSU: 750 watts
Ram: 2x4GB some fairly generic looking ram, came from ibuypower

Was thinking about a Radeon R9 290 (4GB) to replace the GPUs. Would my CPU be able to handle it? my PSU? Maybe 4x4GB of nice ram to follow?

Any help would be appreciated.
2 answers Last reply Best Answer
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  1. Best answer
    CPU will easily handle the R9 290 without any bottleneck
    Good quality 750W PSU is enough for R9 290
    8GB RAM is also sufficient for gaming
  2. r9 290/x or 780/ti

    GPU is the only thing needing upgrade
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