NVIDIA GeForce GTX 880M 's Advantages
Released 2 years and 2 months late
Boost Clock993MHz
More VRAM (8GB vs 1024GB)
Larger VRAM bandwidth (160.0GB/s vs 30.40GB/s)
1376 additional rendering cores
AMD Radeon HD 7490M 's Advantages
Lower TDP (9W vs 122W)