NVIDIA GeForce GTX 660M 's Advantages
Boost Clock has increased by 2% (950MHz vs 930MHz)
NVIDIA GeForce MX450 25W 's Advantages
Released 8 years and 5 months late
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (80.00GB/s vs 64.00GB/s)
512 additional rendering cores
Lower TDP (25W vs 50W)