bctande1 18 August 2012 03:00:16
The size of the memory interface width basically dictates the performance outputted from the 660Ti's GDDR5 VRAM (2GB). For each GB of VRAM, there is a 64-bit memory interface , which, when applied to the 660Ti, should equal to a 128-bit interface (2GB x 64-bit = 128-bit) , much less than the 660ti's ACTUAL 192-bit, and superior 670's 256-bit. HOWEVER NVIDIA made some tweaks here that allowed for a wider 192-bit interface.
Just for comparison
7850 and 7870 reference cards = 256-bit - 2GB of GDDR5
GTX 670 = 256-bit interface width
The 192-bit memory interface will limit Anti-Aliasing and Anistroscopic Filtering performance, and other eye-candy textures of the like, and will become even more constricting when you move to multi-monitor set-ups if utilizing the same AA and AF setting.
The card itself is fantastic, and has definitely shaken up the GPU competition, leaving the HD 7870s and 7850s in a tough spot, and becoming arguably the best value card on the market.
As far as graphic design, most high-end cards are more than sufficient to run any Video-rendering/3D-modeling software optimally, but if you want to be absolutely sure, you can go for the 350$ HD 7950, which offers a bit better performance than the 660ti at stock, but provides much more memory interface width (384-bit)
Bron:
http://www.tomshardware.co.uk/forum/366168-33-tomshardware
