Adaptive Vsync for games with extreme drops in fps at split moments
More efficient, shorter and will run cooler(as well as quieter, but silence is heavily dictated by which heatsink setup you are using.)
CUDA enabled gpgpu acceleration in some professional programs
Resolution curve is better, can take 2560x1400 easier than counterpart
GPGPU and OpenGL support is stronger.(Gamble if games start to run on linux more, OpenGL would be used more, but for the most part, games are run on DirectX due to near windows monopoly for gamers)
Tends to have more vram if there ever comes to a point where a single game will surpass 2 gb(highly unlikely, but who knows)
Handles games with crippling Anti Aliasing better(if you prefer 8x+ MSAA over FXAA)
I tend to basically sugest between the 2 like this:
Is there a sale on one at the moment, if yes: order the one on sale
Are you playing 1920x1080 resolution strictly: 670
Playing on a easy to install, and has features you can use: 670
Are you aiming for enthusiast overclocking(by enthusiast, i mean litterally, using a water cooled loop and overclocking it to oblivion and to its limit): 7970(the 670 is a fine overclocker if you are going to push it a good amount, though the only models that really allow full voltage control on gtx models are MSI models)
Are you planning on ever moving out of the 1920x1080 resolution and going higher: 7970
its all decision. really. both are already OP for 1 monitor at 1920x1080
The 670 and 7970 are both best bang for buck so it basically would boil down to which games you play if you care about Adaptive VSync what res monitor do you want to do anything else like use OpenCL applications, transcoding, WPA/WEP Cracking, RAR Cracking, Bitcoin Mining etc Video cards are so much more than just FPS. It is a larger construct of value proposition based upon your desired level of gaming.
1. What is the best playable experience I can get with current games with THIS card?
2. How is the driver support for THIS card?
3. How loud is THIS card?
4. How much does THIS card cost?
5. How is the vendor support/warranty for THIS card?
those are some of the basic things you should ask when looking to buy a card imho.When you ask which is better between a AMD card or a nvidia all that your going to get is confused or brain washed,neither is better it depends on what your doing.
Damn 30-50% in gaming performance, i think i might just have to wait since im only really playing BF3 at the moment and my 6870 can play it fine at high/medium settings.
Are the 8000 cards coming out in December ?
Offical release will be in January(usually first week for flagship card like 8970, 8950 maybe end of the month), but there will be some reviews coming out in December for you to gauge if the extra money is worth it.