ATI Radeon X1800 GTO vs ATI Radeon X1900 CrossFire Edition
Graphics Processor
| GPU model | R520 | R580 |
|---|---|---|
| GPU variant | R520 LE (215RFLBKA14FG) | R580 CF |
| Architecture | R500 | R500 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 90 nm | 90 nm |
| Number of transistors | 321 million | 384 million |
| Die size | 288 mm² | 352 mm² |
Graphics Card
| Release date | Mar 1st, 2006 | Jan 24th, 2006 |
|---|---|---|
| Generation | Radeon R500 PCIe | Radeon R500 PCIe |
| Production | End-of-life | End-of-life |
| Interface | PCIe 1.0 x16 | PCIe 1.0 x16 |
| Reviews | 76 in our database | 115 in our database |
| Predecessor | Radeon R400 PCIe | Radeon R400 PCIe |
| Successor | Radeon R600 | Radeon R600 |
Clocks
| GPU clock | 500 MHz | 625 MHz |
|---|---|---|
| Memory clock | 495 MHz 990 Mbps effective | 725 MHz 1450 Mbps effective |
Memory Configuration
| Memory size | 256 MB | 512 MB |
|---|---|---|
| Memory type | GDDR3 | GDDR3 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 31.68 GB/s | 46.40 GB/s |
Render Configuration
| Pixel shaders | 12 | 48 |
|---|---|---|
| Vertex shaders | 8 | 8 |
| TMUs | 12 | 16 |
| ROPs | 12 | 16 |
Performance
| Pixel rate | 6.000 GPixel/s | 10.00 GPixel/s |
|---|---|---|
| Vertex rate | 1.000 GVertices/s | 1.250 GVertices/s |
| Texture rate | 6.000 GTexel/s | 10.00 GTexel/s |
Dimensions & Outputs
| Slot width | Single-slot | Dual-slot |
|---|---|---|
| Length | 254 mm 10 inches | — |
| Width | 111 mm 4.4 inches | — |
| Height | 19 mm 0.7 inches | — |
| TDP | 48 W | 100 W |
| Suggested PSU | 200 W | 300 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Power connectors | 1x 6-pin | 1x 6-pin |
| Board number | A520 | A721 |
API Support & Features
| DirectX | 9.0c (9_3) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 2.1 | 2.1 (full) 3.0 (partial) |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 3.0 | 3.0 |
