Which HD 7970 is the best?

StringentHydra9

Honorable
Jun 28, 2012
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10,510
So in a few weeks I plan on upgrading from a HD 7850 to a 7970, just wanted input from people who actually own the cards on which version of the 7970 is the best and has the most OC potential. I'm running one display at the moment but may move up to 2-3 later, what sort of gains can I expect coming from the 7850?
Here are my system specs:
AMD FX-8350
Seasonic 80Plus Power Supply M12II 620 BRONZE
MSI R7850 Twin Frozr OC AMD Radeon HD 7850 2GB
G.SKILL Sniper Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866
ASUS M5A99X Evo MB
Cooler Master HAF 912 Mid Tower ATX Case
Crucial 128 GB m4 2.5-Inch Solid State Drive SATA
Cooler Master Hyper 212 Plus 120mm Sleeve CPU Cooler
1GB Hard Drive 7200RPM for storage
Thanks for your time and input.
 

jbucko

Honorable
Jan 7, 2013
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10,690