Please Help Me With My Final Gaming Pc Build

HowToEatBurgers

Honorable
Aug 10, 2013
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for my graphics card I can't decide on the Gigabyte 2GB GTX760 DirectCU II Or the Sapphire 11196-09-40G HD7950 3GB Vapox-X Graphics Card

these are my specs (without the graphics card)

CPU: AMD FX-6300 3.5GHz 6-Core Processor (£83.99 @ Aria PC)
MotherBoard: Asus M5A97 R2.0 Motherboard
Memory: Corsair Vengence 8GB
Storage: Western Digital 1TB internal Hard Drive
Video Card:
Power Supply: OCZ OCZ-ZS550W-UK 550W ZS Series 550W 80+ Bronze PSU with 135mm Fan & single +12V Rail
Optical Drive: Asus DRW-24B5ST 24x Internal SATA DVD Drive
Case: Zalman Z11 Midi Tower Case
Keyboard: Roccat Isku Illuminated Gaming Keyboard
Mouse: Anker 8000 DPI High Precision Programmable Laser Gaming Mouse
Headset: Gioteck EX-05