AMD Radeon RX 640 Mobile 's Advantages
Released 9 years and 4 months late
Boost Clock1218MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (48.00GB/s vs 12.80GB/s)
560 additional rendering cores
ATI Mobility Radeon HD 5450 's Advantages
Lower TDP (11W vs 50W)