ATI Radeon HD 4670 X2 's Advantages
Lower TDP (118W vs 165W)
NVIDIA PG506 232 's Advantages
Released 12 years and 7 months late
Boost Clock1440MHz
More VRAM (24GB vs 512GB)
Larger VRAM bandwidth (933.1GB/s vs 22.40GB/s)
3264 additional rendering cores