ATI Radeon HD 4250 vs NVIDIA GeForce 405 OEM
Graphics Processor
| GPU model | RV620 | GT216 |
|---|---|---|
| GPU variant | RV620 LE | — |
| Architecture | TeraScale | Tesla 2.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 40 nm |
| Number of transistors | 181 million | 486 million |
| Die size | 67 mm² | 100 mm² |
Graphics Card
| Release date | Feb 25th, 2009 | Sep 3rd, 2010 |
|---|---|---|
| Generation | Radeon R600 | GeForce 400 |
| Production | End-of-life | End-of-life |
| Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Predecessor | Radeon R500 PCIe | GeForce 200 |
| Successor | Radeon R700 | GeForce 500 |
Clocks
| GPU clock | 594 MHz | 475 MHz |
|---|---|---|
| Memory clock | 396 MHz 792 Mbps effective | 800 MHz 1600 Mbps effective |
| Shader clock | — | 1100 MHz |
Memory Configuration
| Memory size | 512 MB | 512 MB |
|---|---|---|
| Memory type | DDR2 | DDR3 |
| Memory bus width | 64 bit | 64 bit |
| Bandwidth | 6.336 GB/s | 12.80 GB/s |
Render Configuration
| Shading units | 40 | 48 |
|---|---|---|
| TMUs | 4 | 16 |
| ROPs | 4 | 8 |
| Compute units | 2 | — |
| Cache L2 | 64 KB | 32 KB |
| SM count | — | 6 |
Performance
| Pixel rate | 2.376 GPixel/s | 3.800 GPixel/s |
|---|---|---|
| Texture rate | 2.376 GTexel/s | 7.600 GTexel/s |
| FP32 (float) performance | 47.52 GFLOPS | 105.6 GFLOPS |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| TDP | 25 W | 25 W |
| Suggested PSU | 200 W | 200 W |
| Outputs | 1x DVI1x VGA1x S-Video | 1x DVI1x HDMI1x VGA |
| Power connectors | None | — |
| Length | — | 168 mm 6.6 inches |
API Support & Features
| DirectX | 10.1 (10_1) | 11.1 (10_1) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | — | 1.1 |
| Vulkan | — | — |
| Shader model | 4.1 | 4.1 |
| CUDA | — | 1.2 |
