ATI Radeon HD 4870 X2 's Advantages
Larger VRAM bandwidth (115.2GB/s vs 32.00GB/s)
416 additional rendering cores
AMD Radeon R7 350X OEM 's Advantages
Released 6 years and 9 months late
Boost Clock1050MHz
More VRAM (4GB vs 1GB)
Lower TDP (65W vs 286W)