NVIDIA GeForce GTX 660 's Advantages
Lower TDP (140W vs 275W)
NVIDIA L20 's Advantages
Released 11 years and 2 months late
Boost Clock has increased by 144% (2520MHz vs 1032MHz)
More VRAM (48GB vs 2GB)
Larger VRAM bandwidth (864.0GB/s vs 144.2GB/s)
10816 additional rendering cores