NVIDIA GeForce GTX 660 OEM 's Advantages
Boost Clock888MHz
More VRAM (1536GB vs 1024GB)
Larger VRAM bandwidth (134.4GB/s vs 25.60GB/s)
672 additional rendering cores
AMD Radeon HD 8570 OEM Rebrand 's Advantages
Released 11 months late
Lower TDP (60W vs 130W)