ATI Mobility Radeon HD 5770 's Advantages
Larger VRAM bandwidth (51.20GB/s vs 28.80GB/s)
AMD Radeon HD 7730M 's Advantages
Released 2 years and 3 months late
Boost Clock675MHz
More VRAM (2GB vs 1024GB)
112 additional rendering cores
Lower TDP (25W vs 30W)