NVIDIA GeForce 9300M G 's Advantages
Lower TDP (13W vs 122W)
NVIDIA GeForce GTX 680MX Mac Edition 's Advantages
Released 4 years and 8 months late
More VRAM (2GB vs 256GB)
Larger VRAM bandwidth (160.0GB/s vs 9.600GB/s)
1520 additional rendering cores