NVIDIA GeForce GTX TITAN BLACK 's Advantages
Released 9 months late
Boost Clock980MHz
More VRAM (6GB vs 2GB)
Larger VRAM bandwidth (336.0GB/s vs 14.40GB/s)
2496 additional rendering cores
NVIDIA GeForce GT 630 Rev. 2 's Advantages
Lower TDP (25W vs 250W)