ATI Radeon HD 5550 vs NVIDIA GeForce 7900 GX2
Graphics Processor
| GPU model | Redwood | G71 |
|---|---|---|
| GPU variant | Redwood PRO2 | — |
| Architecture | TeraScale 2 | Curie |
| Foundry | TSMC | TSMC |
| Manufacturing process | 40 nm | 90 nm |
| Number of transistors | 627 million | 278 million |
| Die size | 104 mm² | 196 mm² |
Graphics Card
| Release date | Feb 9th, 2010 | Apr 30th, 2006 |
|---|---|---|
| Generation | Evergreen | GeForce 7 PCIe |
| Production | End-of-life | End-of-life |
| Interface | PCIe 2.0 x16 | PCIe 1.0 x16 |
| Reviews | 29 in our database | 145 in our database |
| Predecessor | Radeon R700 | GeForce 6 PCIe |
| Successor | Northern Islands | GeForce 8 |
| Launch price | — | 599 USD |
Clocks
| GPU clock | 550 MHz | 500 MHz |
|---|---|---|
| Memory clock | 800 MHz 3.2 Gbps effective | 600 MHz 1200 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 512 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR3 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 51.20 GB/s | 38.40 GB/s |
Render Configuration
| Shading units | 320 | — |
|---|---|---|
| TMUs | 16 | 24 |
| ROPs | 8 | 16 |
| Compute units | 4 | — |
| Cache L1 | 8 KB (per CU) | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 24 |
| Vertex shaders | — | 8 |
Performance
| Pixel rate | 4.400 GPixel/s | 8.000 GPixel/s |
|---|---|---|
| Texture rate | 8.800 GTexel/s | 12.00 GTexel/s |
| FP32 (float) performance | 352.0 GFLOPS | — |
| Vertex rate | — | 1.000 GVertices/s |
Dimensions & Outputs
| Slot width | Single-slot | Dual-slot |
|---|---|---|
| Length | 165 mm 6.5 inches | 312 mm 12.3 inches |
| TDP | 39 W | 110 W |
| Suggested PSU | 200 W | 300 W |
| Outputs | 1x DVI1x HDMI1x VGA | 2x DVI1x S-Video |
| Power connectors | None | 2x 6-pin |
| Board number | C021, C025, C029 | P278, P378 |
API Support & Features
| DirectX | 11.2 (11_0) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 4.4 | 2.1 |
| OpenCL | 1.2 | — |
| Vulkan | — | — |
| Shader model | 5.0 | 3.0 |
