NVIDIA GeForce GTX 980 's Advantages
Released 3 years and 5 months late
Boost Clock1216MHz
More VRAM (4GB vs 1024GB)
Larger VRAM bandwidth (224.4GB/s vs 64.00GB/s)
1568 additional rendering cores
AMD Radeon HD 6670 's Advantages
Lower TDP (66W vs 165W)