NVIDIA GeForce GTX TITAN BLACK 's Advantages
Released 2 years and 7 months late
Boost Clock980MHz
More VRAM (6GB vs 1GB)
Larger VRAM bandwidth (336.0GB/s vs 16.00GB/s)
2560 additional rendering cores
AMD Radeon HD 6390 's Advantages
Lower TDP (39W vs 250W)