We actually need MORE INFO to help advise you best ...
Like ... I assume this means you already HAVE at least one HD-6950 1 GB card ? and were asking if getting another for X-Fire would be better or upgrading to the HIS HD-6970 would be better ?
Obviously just another 1 GB HD-6950 would be CHEAPER ... but if you don't have a GPU right now, I wouldn't get a 1 GB card ... get the 2 GB 6950 cards, and TWO 2 GB 6950's would cost more than one HD-6970, then again can your PSU handle X-Fire ? or do you need to upgrade that in the process ? WE don't know any of your RIG specs !
Obviously X-Fired 6950's will be " FASTER " in a FPS sense than a single HD-6970 ... but of course then you are MAXED out, while if you went 6970 you could X-fire a second 6970 in the future.
Also what resolution / monitors are you using / playing at ? that can impact things ... as 2GB would be better for EyeFinity and/or Larger Resolutions.
Lastly, that HIS isn't that bad, and I guess it's on sale, so it's a GOOD DEAL ... but personally IF I was getting an HD-6970 I'd get one of these three cards ;
- http://www.newegg.com/Product/Product.aspx?Item=N82E16814127581 - MSI 6970 Lightning
- http://www.newegg.com/Product/Product.aspx?Item=N82E16814102957 - SAPPhIRE 6970 Dual Fan/Dual Bios
- http://www.newegg.com/Product/Product.aspx?Item=N82E16814102956 - SAPPhIRE 6970 FleX BattleField3 Game Edition
sorry forgot to mention this is for a new build monitor resolution is 1920 x 1080p heres the build im looking at .
ASUS Maximus IV Gene-Z/GEN3 LGA 1155 Intel Z68 HDMI SATA 6Gb/s USB 3.0 Micro ATX Intel Motherboard
HIS IceQ Turbo H697QT2G2M Radeon HD 6970 2GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with ...
Thermaltake Black Widow W0319RU 850W ATX 12V v2.3, EPS 12V v2.91 CrossFire Certified 80 PLUS BRONZE Certified Modular Active ...
( windows 7 and games installed here ) SAMSUNG 830 Series MZ-7PC128D/AM 2.5" 128GB SATA III MLC Internal Solid State Drive (SSD) Desktop Upgrade Kit
G.SKILL Ripjaws X Series 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-14900CL9Q-16GBXL
(Data) Seagate Barracuda ST1000DM003 1TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive
Antec KUHLER H2O 920 Liquid Cooling System
Model #:KUHLER H2O 920
Corsair Special Edition White Graphite Series 600T Steel / Plastic ATX Mid Tower Computer Case