ATI Radeon HD 4250 vs NVIDIA Quadro NVS 420
Graphics Processor
| GPU model | RV620 | G98 |
|---|---|---|
| GPU variant | RV620 LE | — |
| Architecture | TeraScale | Tesla |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 65 nm |
| Number of transistors | 181 million | 210 million |
| Die size | 67 mm² | 86 mm² |
Graphics Card
| Release date | Feb 25th, 2009 | Jan 20th, 2009 |
|---|---|---|
| Generation | Radeon R600 | Quadro NVS |
| Production | End-of-life | End-of-life |
| Interface | PCIe 2.0 x16 | PCIe 1.0 x16 |
| Predecessor | Radeon R500 PCIe | — |
| Successor | Radeon R700 | — |
| Reviews | — | 26 in our database |
Clocks
| GPU clock | 594 MHz | 550 MHz |
|---|---|---|
| Memory clock | 396 MHz 792 Mbps effective | 700 MHz 1400 Mbps effective |
| Shader clock | — | 1400 MHz |
Memory Configuration
| Memory size | 512 MB | 256 MB |
|---|---|---|
| Memory type | DDR2 | GDDR3 |
| Memory bus width | 64 bit | 64 bit |
| Bandwidth | 6.336 GB/s | 11.20 GB/s |
Render Configuration
| Shading units | 40 | 8 |
|---|---|---|
| TMUs | 4 | 4 |
| ROPs | 4 | 4 |
| Compute units | 2 | — |
| Cache L2 | 64 KB | 16 KB |
| SM count | — | 1 |
Performance
| Pixel rate | 2.376 GPixel/s | 2.200 GPixel/s |
|---|---|---|
| Texture rate | 2.376 GTexel/s | 2.200 GTexel/s |
| FP32 (float) performance | 47.52 GFLOPS | 22.40 GFLOPS |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| TDP | 25 W | 40 W |
| Suggested PSU | 200 W | 200 W |
| Outputs | 1x DVI1x VGA1x S-Video | No outputs |
| Power connectors | None | None |
| Board number | — | P737 |
API Support & Features
| DirectX | 10.1 (10_1) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 3.3 | 3.3 |
| OpenCL | — | 1.1 |
| Vulkan | — | — |
| Shader model | 4.1 | 4.0 |
| CUDA | — | 1.1 |
