1 · ATI
ATI Radeon HD 4870 X21 GBGDDR5
Hardware comparison
GPU comparison workbench
Compare up to five canonical GPUs side by side using normalized specification fields. Selection and card order are stored in the URL so this exact workbench can be copied and reopened.
Specifications
Technical comparison
| Specification | ATI Radeon HD 4870 X2 |
|---|---|
| Overview | |
| Manufacturer | ATI |
| Family | Radeon R700(HD 4800) |
| Launch date | 2008-08-12 |
| Architecture | |
| Architecture | TeraScale |
| Generation | Radeon R700(HD 4800) |
| GPU / chip | R700 |
| Foundry | TSMC |
| Process | 55 nm |
| Compute | |
| Compute units | 12 CUs |
| Shader processors | 1600 |
| Memory | |
| VRAM | 1 GB |
| Memory type | GDDR5 |
| Memory bus | 256 bit |
| Memory bandwidth | 115.2 GB/s |
| Clocks | |
| Base clock | 0.75 GHz |
| Boost clock | 0.75 GHz |
| Memory clock | 0.90 GHz |
| PCIe | |
| Bus interface | PCIe 2.0 x16 |
| Display | |
| Display outputs | 2x DVI, 1x S-Video |
| Power | |
| Board power | 286 W |
| Suggested PSU | 600 W |
| Power connectors | 1x 6-pin + 1x 8-pin |
| Physical | |
| Reference dimensions | 267 mm × 38 mm × — |
| Slot width | Dual-slot |
References