NVIDIA GeForce GTX 780 Rev. 2 's Advantages
Released 3 years late
Boost Clock902MHz
More VRAM (3GB vs 1024GB)
Larger VRAM bandwidth (288.4GB/s vs 28.80GB/s)
2256 additional rendering cores
NVIDIA GeForce GT 420 OEM 's Advantages
Lower TDP (50W vs 250W)