ATI Radeon HD 4850 vs NVIDIA GeForce 9400
Graphics Processor
| GPU model | RV770 | C79 |
|---|---|---|
| GPU variant | RV770 PRO (215-0669065) | — |
| Architecture | TeraScale | Tesla |
| Foundry | TSMC | — |
| Manufacturing process | 55 nm | 65 nm |
| Number of transistors | 956 million | 314 million |
| Die size | 256 mm² | 144 mm² |
Graphics Card
| Release date | Jun 25th, 2008 | — |
|---|---|---|
| Generation | Radeon R700 | — |
| Production | End-of-life | — |
| Launch price | 199 USD | — |
| Interface | PCIe 2.0 x16 | — |
| Reviews | 127 in our database | — |
| Predecessor | Radeon R600 | — |
| Successor | Evergreen | — |
Clocks
| GPU clock | 625 MHz | 450 MHz |
|---|---|---|
| Memory clock | 993 MHz 1986 Mbps effective | System Shared |
| Shader clock | — | 1100 MHz |
Memory Configuration
| Memory size | 512 MB | System Shared |
|---|---|---|
| Memory type | GDDR3 | System Shared |
| Memory bus width | 256 bit | System Shared |
| Bandwidth | 63.55 GB/s | System Dependent |
Render Configuration
| Shading units | 800 | 16 |
|---|---|---|
| TMUs | 40 | 8 |
| ROPs | 16 | 4 |
| Compute units | 10 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | — |
| SM count | — | 2 |
Performance
| Pixel rate | 10.00 GPixel/s | 1.800 GPixel/s |
|---|---|---|
| Texture rate | 25.00 GTexel/s | 3.600 GTexel/s |
| FP32 (float) performance | 1,000 GFLOPS | 35.20 GFLOPS |
| FP64 (double) performance | 200.0 GFLOPS (1:5) | — |
Dimensions & Outputs
| Slot width | Single-slot | IGP |
|---|---|---|
| Length | 246 mm 9.7 inches | — |
| TDP | 110 W | 40 W |
| Suggested PSU | 300 W | — |
| Outputs | 2x DVI1x S-Video | 1x DVI1x VGA1x S-Video |
| Power connectors | 1x 6-pin | — |
| Board number | B501-31 | — |
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 |
Other Features
Integrated Graphics
| Release date | — | Apr 17th, 2007 |
|---|---|---|
| Generation | — | GeForce 9 IGP |
| Production | — | End-of-life |
| Interface | — | PCI |
| Reviews | — | 6 in our database |
| Predecessor | — | GeForce 8 IGP |
