AMD Radeon HD 8770M 's Advantages
Released 1 years and 3 months late
Boost Clock has increased by 50% (825MHz vs 550MHz)
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (72.00GB/s vs 14.40GB/s)
AMD Radeon HD 7550M 's Advantages
16 additional rendering cores