NVIDIA GeForce RTX 4070 Mobile 's Advantages
Released 10 years and 3 months late
Boost Clock1695MHz
More VRAM (8GB vs 2GB)
Larger VRAM bandwidth (256.0GB/s vs 28.80GB/s)
4224 additional rendering cores
NVIDIA GeForce GT 645M 's Advantages
Lower TDP (32W vs 115W)