NVIDIA GeForce GT 540M 's Advantages
Larger VRAM bandwidth (28.80GB/s vs 14.40GB/s)
NVIDIA GeForce 920MX 's Advantages
Released 5 years and 2 months late
Boost Clock993MHz
More VRAM (2GB vs 1024GB)
160 additional rendering cores
Lower TDP (16W vs 35W)