[jihadjoe]

Originally Posted by radrok

The GTX 580 has a 384bit bus width and there are 3GB versions.

The GTX Titan has a 384bit bus, why is it different? Logic tells me that it can be made 3GB.


http://www.geforce.co.uk/hardware/de...specifications

http://www.geforce.co.uk/hardware/de...specifications

That was an unnecessary and incorrect nitpick

Unnecesary, perhaps. But he isn't incorrect. If you read the whole of the first post, btarunr said the card would likely be 320-bit, not 384. So the RAM amounts will be more like the 570, less like the 580.

The GTX570 has a 320 bit bus, and there are 2.5GB versions
The 13-sm GK110, if it has a 320 bit bus can easily have 5GB VRAM using chips with double the density compared to what was in the GTX570.