ATI Radeon HD 2400 vs ATI Radeon HD 4250
Graphics Processor
| GPU model | RV610 | RV620 |
|---|---|---|
| Architecture | TeraScale | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 65 nm | 55 nm |
| Number of transistors | 180 million | 181 million |
| Die size | 85 mm² | 67 mm² |
| GPU variant | — | RV620 LE |
Graphics Card
| Release date | Feb 19th, 2008 | Feb 25th, 2009 |
|---|---|---|
| Generation | Radeon R600 | Radeon R600 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Reviews | 32 in our database | — |
| Predecessor | Radeon R500 PCIe | Radeon R500 PCIe |
| Successor | Radeon R700 | Radeon R700 |
Clocks
| GPU clock | 398 MHz | 594 MHz |
|---|---|---|
| Memory clock | 495 MHz 990 Mbps effective | 396 MHz 792 Mbps effective |
Memory Configuration
| Memory size | 256 MB | 512 MB |
|---|---|---|
| Memory type | DDR2 | DDR2 |
| Memory bus width | 64 bit | 64 bit |
| Bandwidth | 7.920 GB/s | 6.336 GB/s |
Render Configuration
| Shading units | 40 | 40 |
|---|---|---|
| TMUs | 4 | 4 |
| ROPs | 4 | 4 |
| Compute units | 2 | 2 |
| Cache L2 | 32 KB | 64 KB |
Performance
| Pixel rate | 1.592 GPixel/s | 2.376 GPixel/s |
|---|---|---|
| Texture rate | 1.592 GTexel/s | 2.376 GTexel/s |
| FP32 (float) performance | 31.84 GFLOPS | 47.52 GFLOPS |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| TDP | 20 W | 25 W |
| Suggested PSU | 200 W | 200 W |
| Outputs | 1x DVI1x S-Video | 1x DVI1x VGA1x S-Video |
| Power connectors | None | None |
| Board number | B170 | — |
API Support & Features
| DirectX | 10.0 (10_0) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 4.0 | 4.1 |
