NVIDIA GeForce GTX 765M 's Advantages
Larger VRAM bandwidth (64.13GB/s vs 40.10GB/s)
384 additional rendering cores
NVIDIA GeForce 845M 's Advantages
Released 2 years and 3 months late
Boost Clock has increased by 36% (1176MHz vs 863MHz)
Lower TDP (33W vs 75W)