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ATI Radeon HD 4870 X2 2 GB reference

2008; R700 dual RV770; 2 x 800 stream processors.

Unique local schematic for ATI Radeon HD 4870 X2 2 GB reference, showing its memory configuration and host interface; not to scale
ORIGINAL LOCAL SCHEMATIC // NOT A PRODUCT PHOTOGRAPH OR DIMENSIONAL DRAWING

Recorded specifications

Catalog identityATI Radeon HD 4870 X2 2 GB reference
Model-specific specification2008; R700 dual RV770; 2 x 800 stream processors; 2 GB GDDR5 (1 GB local/GPU), dual 256-bit; PCIe 2.0 x16; ~286 W; 8-pin + 6-pin.
Vendor-first catalogAMD/ATI vendor directory
Model-family indexAMD / ATI vendor directory

Compatibility and maintenance

Dual processors do not share a single 2 GB pool; CrossFire scaling is software dependent. Check both feeds, interconnect and dual-slot cooler; preserve legacy driver profile.

Sources & further reading

  1. TechPowerUp Radeon HD 4870 X2Model/family technical or historical reference; confirm the exact board revision and OEM label.
  2. Gamers Nexus — Tear-Down of Rare ATi HD 4870 X2 Prototype & HistoryIndependent video review; treat as supplementary context, not primary manufacturer documentation.