AMD Radeon HD 8990 OEM 's Advantages
Released 5 years and 3 months late
Boost Clock1000MHz
More VRAM (3GB vs 512GB)
Larger VRAM bandwidth (288.0GB/s vs 52.99GB/s)
1728 additional rendering cores
ATI Radeon HD 3850 AGP 's Advantages
Lower TDP (75W vs 375W)