NVIDIA GeForce GTX TITAN 's Advantages
More VRAM (6GB vs 2GB)
Larger VRAM bandwidth (288.4GB/s vs 73.60GB/s)
2304 additional rendering cores
AMD Radeon HD 8670 OEM 's Advantages
Boost Clock has increased by 20% (1050MHz vs 876MHz)
Lower TDP (75W vs 250W)