ATI Radeon HD 4850 X2 vs ATI Radeon HD 4870 X2
What is the difference between ATI Radeon HD 4850 X2 and ATI Radeon HD 4870 X2. Find out which graphics card has better performance.
Graphics Processor (GPU)
| R700 | GPU Name | R700 |
| R700 PRO (215-0669065) | Model number | R700 XT (215-0669045) |
| TeraScale | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 55 nm |
| 956 million | Transistors | 956 million |
| 256 mm² | Die Size | 256 mm² |
Graphics Card
| Nov 7th, 2008 | Release Date | Aug 12th, 2008 |
| Radeon R700 (HD 4800) | Family | Radeon R700 (HD 4800) |
| End-of-life | Production | End-of-life |
| 420 USD | Launch Price | 550 USD |
| Radeon R600 | Predecessor | Radeon R600 |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 512 MB x2 | Memory Size | 1024 MB x2 |
| GDDR3 | Memory Type | GDDR5 |
| 256 bit x2 | Memory Bus | 256 bit x2 |
Clock Speeds
| 995 MHz 1990 Mbps effective | Memory Clock | 900 MHz 3.6 Gbps effective |
| 625 MHz | GPU Clock | 750 MHz |
Render Config
| 40 x2 | TMUs | 40 x2 |
| 16 x2 | ROPs | 16 x2 |
Board Design
| 267 mm 10.5 inches | Length | 267 mm 10.5 inches |
| 250 W | Thermal design power (TDP) | 286 W |
| 600 W | Suggested PSU | 600 W |
| 4x DVI 1x S-Video | Display Connectors | 2x DVI 1x S-Video |
| 1x 6-pin + 1x 8-pin | Power Connectors | 1x 6-pin + 1x 8-pin |
| B501 | Board Number | B509-37 |
API support
| 10.1 (10_1) | DirectX | 10.1 (10_1) |
| 3.3 | OpenGL | 3.3 |
| 1.1 | OpenCL | 1.1 |
| N/A | Vulkan | N/A |
| 4.1 | Shader Model | 4.1 |