NVIDIA GeForce GT 640 's Advantages
Lower TDP (65W vs 120W)
NVIDIA GeForce GTX 1060 6 GB GP104 's Advantages
Released 5 years and 9 months late
Boost Clock1708MHz
More VRAM (6GB vs 2GB)
Larger VRAM bandwidth (192.2GB/s vs 28.51GB/s)
896 additional rendering cores