GDDR speed bottleneck

[fkr]

At what point will processing power and available GDDR not mean anything compared to the graphics card ability to push through code, 512 bit GDDR.

I am just thinking about what if a 3 gig 660 eventually gets down to $150 (cheapest now is $240 w/MIR) or less if bought used. Even if running 3-4 of these would it outperform most/all other graphics cards or would one 690 with 512 bit GDDR still be faster just because of the memory bandwidth, and at what point may this become true.

 

[fkr]

It seems that a one gig card is already a bottle neck, do people think that in the next 6 months to a year that the 512 bit GDDR will be the next bottleneck. I am trying to figure out when the next upgrade should occur for me and for friends on the graphics front.

 

[siddharthmukul007]

512 bit memory interface for GDDR has a long way to get bottleneck....it would be a minimum for a year or two.


running 3 660 ti s in sli will surely beat anything that is out there presently....but you need to have a mobo that is capable enough to provide for so much pci-e bandwidth. the top of the line mobos that has PLX chips can do so.


4way sli though is not possible with the 660

 

[fkr]

does anybody remember what series of cards the 192 bit interface was established with on the nvidia side (not a personnel preference but that is where I started)