NVIDIA GeForce GTX 260M 's Advantages
Lower TDP (65W vs 122W)
NVIDIA GeForce GTX 780M Mac Edition 's Advantages
Released 4 years and 8 months late
Boost Clock797MHz
More VRAM (4GB vs 1GB)
Larger VRAM bandwidth (160.0GB/s vs 60.80GB/s)
1424 additional rendering cores