AMD Radeon HD 6670 's Advantages
Lower TDP (66W vs 250W)
NVIDIA GeForce GTX 780 's Advantages
Released 2 years and 1 months late
Boost Clock902MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (288.4GB/s vs 64.00GB/s)
1824 additional rendering cores