NVIDIA GeForce GTX 660 OEM 's Advantages
Lower TDP (130W vs 300W)
NVIDIA GeForce GTX 690 's Advantages
Boost Clock has increased by 15% (1019MHz vs 888MHz)
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (192.3GB/s vs 134.4GB/s)
384 additional rendering cores