Quote Originally Posted by Macadamia View Post
I don't think they even had the GDDR5 memory controller finalized when it was July. Whatever reason they didn't do it before, I'm very inclined to say it's technical. Otherwise even with existing GDDR4 they wouldn't have been so shortsighted with the GT200 obviously.


nVidia really did NOT knew about this one. They thought the 4870 was going to be like the 3870, excessive waste on bandwidth.

Plus they have a lot of other fish to fry too, including shader density, keeping the core clock >700Mhz, and oh wait, where's CUDA now?
GDDR4 is and was a failure. So lets drop that part.

GDDR5 is still in low supply. If nVidia had gone GDDR5 aswell. There would be a huge supply issue. And AMD already got all the supply. In short, until GDDR5 gets enough volume and gets cheap enough. 512But GDDR3 or 256bit GDDR5 is basicly the same in all aspects. 256bit GDDR5 is the winner in the long run tho when GDDR5 prices comes down and supply increases.

So its not a matter of if GT200 supports GDDR5 or not. Bandwidth doesnt matter atm.

nVidia failed because they thought AMD would go the cheap small route again. So they put their money on 480SP or so. Not 800.