NVIDIA GeForce 945M 's Advantages
Released 2 years and 8 months late
Boost Clock has increased by 30% (1189MHz vs 915MHz)
Lower TDP (23W vs 33W)
NVIDIA GeForce GT 745A 's Advantages
More VRAM (2GB vs 1GB)
Larger VRAM bandwidth (28.80GB/s vs 16.02GB/s)