ATI Radeon HD 2950 XTX vs ATI Radeon HD 3870
What is the difference between ATI Radeon HD 2950 XTX and ATI Radeon HD 3870. Find out which graphics card has better performance.
Graphics Processor (GPU)
| RV670 | GPU Name | RV670 |
| RV670 XTX (215-0708004) | Model number | RV670 XT (215-0708005) |
| TeraScale | Architecture | TeraScale |
| TSMC | Foundry | TSMC |
| 55 nm | Process Size | 55 nm |
| 666 million | Transistors | 666 million |
| 192 mm² | Die Size | 192 mm² |
Graphics Card
| Never Released | Release Date | Nov 19th, 2007 |
| Radeon R600 (HD 2900) | Family | Radeon R600 (HD 3800) |
| End-of-life | Production | End-of-life |
| Radeon R500 PCIe | Predecessor | Radeon R500 PCIe |
| PCIe 2.0 x16 | Bus Interface | PCIe 2.0 x16 |
Memory
| 512 MB | Memory Size | 512 MB |
| GDDR4 | Memory Type | GDDR4 |
| 256 bit | Memory Bus | 256 bit |
| 72.06 GB/s | Bandwidth | 72.06 GB/s |
Performance
| 12.43 GPixel/s | Pixel fillrate | 12.43 GPixel/s |
| 12.43 GTexel/s | Texture fillrate | 12.43 GTexel/s |
| 497.3 GFLOPS | FP32 (float) performance | 497.3 GFLOPS |
| 99.46 GFLOPS (1:5) | FP64 (double) performance | 99.46 GFLOPS (1:5) |
Clock Speeds
| 1126 MHz 2.3 Gbps effective | Memory Clock | 1126 MHz 2.3 Gbps effective |
| 777 MHz | GPU Clock | 777 MHz |
Render Config
| 320 | Shading Units | 320 |
| 16 | TMUs | 16 |
| 16 | ROPs | 16 |
| 4 | Compute Units | 4 |
| 256 KB | L2 Cache | 256 KB |
Board Design
| Single-slot | Slot Width | Dual-slot |
| 241 mm 9.5 inches | Length | 241 mm 9.5 inches |
| 110 W | Thermal design power (TDP) | 106 W |
| 300 W | Suggested PSU | 300 W |
| 2x DVI 1x S-Video | Display Connectors | 2x DVI 1x S-Video |
| 1x 6-pin | Power Connectors | 1x 6-pin |
API support
| 10.1 (10_1) | DirectX | 10.1 (10_1) |
| 3.3 (full) 4.0 (partial) | OpenGL | 3.3 (full) 4.0 (partial) |
| N/A | OpenCL | N/A |
| N/A | Vulkan | N/A |
| 4.1 | Shader Model | 4.1 |