NVIDIA GeForce GTX 660 Rev. 2 's Advantages
Released 1 years and 8 months late
Larger VRAM bandwidth (144.2GB/s vs 73.60GB/s)
576 additional rendering cores
AMD Radeon HD 8670 OEM 's Advantages
Boost Clock has increased by 2% (1050MHz vs 1032MHz)
Lower TDP (75W vs 140W)