AMD FirePro S7150 x2 's Advantages
Released 3 years and 6 months late
More VRAM (8GB vs 1536GB)
Larger VRAM bandwidth (160.0GB/s vs 134.4GB/s)
640 additional rendering cores
NVIDIA GeForce GTX 660 OEM 's Advantages
Boost Clock888MHz
Lower TDP (130W vs 265W)