NVIDIA CMP 40HX 's Advantages
Released 7 years and 9 months late
Boost Clock1650MHz
More VRAM (8GB vs 1GB)
Larger VRAM bandwidth (448.0GB/s vs 40.06GB/s)
1920 additional rendering cores
NVIDIA GeForce GT 640 Rev. 2 's Advantages
Lower TDP (49W vs 185W)