NVIDIA GeForce GTX TITAN BLACK 's Advantages
Boost Clock has increased by 6% (980MHz vs 925MHz)
More VRAM (6GB vs 2GB)
Larger VRAM bandwidth (336.0GB/s vs 153.6GB/s)
1856 additional rendering cores
AMD Radeon R9 270 1024SP 's Advantages
Released 1 years and 1 months late
Lower TDP (150W vs 250W)