Can someone answer this for me?
If the GRX 780 Ti is better than titan, why is the GTX Titan/Titan Black/Titan Z more expensive?
The Titan Z > Titan Black, 780 Ti > Titan
All of the titans have faster double prescision compute capabilities than the 780 Ti. Nvidia arbitrarily hobbled the compute capability of the 780 ti so that they could continue selling their titans for exorbitant prices. The 780 Ti and titan black both have fully utilized Kepler gpus, so their gaming performance will be very similar. The only difference is that the titan black has 6gb of vram instead of 3gb, and its double compute is something like 24x faster. The titan Z is effectively 2 titan blacks.
the Titan and Titan Black do, but the Titan Z has 12
The titan black has 12gb or ram onboard, but 6gb is used exclusively for each gpu. It's the same thing as crossfiring other video cards. If you have 2 cards with 2gb each, your max vram is still 2gb because each card uses its own memory.
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