ATI Radeon HD 3870 vs NVIDIA Quadro FX 1500
Graphics Processor
| GPU model | RV670 | G71 |
|---|---|---|
| GPU variant | RV670 XT (215-0708005) | QDFX-1500-N-A2 |
| Architecture | TeraScale | Curie |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 90 nm |
| Number of transistors | 666 million | 278 million |
| Die size | 192 mm² | 196 mm² |
Graphics Card
| Release date | Nov 19th, 2007 | Apr 20th, 2006 |
|---|---|---|
| Generation | Radeon R600 | Quadro FX |
| Production | End-of-life | End-of-life |
| Launch price | 269 USD | 699 USD |
| Interface | PCIe 2.0 x16 | PCIe 1.0 x16 |
| Reviews | 80 in our database | 26 in our database |
| Predecessor | Radeon R500 PCIe | — |
| Successor | Radeon R700 | — |
Clocks
| GPU clock | 777 MHz | 325 MHz |
|---|---|---|
| Memory clock | 1126 MHz 2.3 Gbps effective | 625 MHz 1250 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 256 MB |
|---|---|---|
| Memory type | GDDR4 | GDDR3 |
| Memory bus width | 256 bit | 256 bit |
| Bandwidth | 72.06 GB/s | 40.00 GB/s |
Render Configuration
| Shading units | 320 | — |
|---|---|---|
| TMUs | 16 | 16 |
| ROPs | 16 | 16 |
| Compute units | 4 | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 16 |
| Vertex shaders | — | 6 |
Performance
| Pixel rate | 12.43 GPixel/s | 5.200 GPixel/s |
|---|---|---|
| Texture rate | 12.43 GTexel/s | 5.200 GTexel/s |
| FP32 (float) performance | 497.3 GFLOPS | — |
| FP64 (double) performance | 99.46 GFLOPS (1:5) | — |
| Vertex rate | — | 487.5 MVertices/s |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| Length | 241 mm 9.5 inches | 173 mm 6.8 inches |
| TDP | 106 W | 65 W |
| Suggested PSU | 300 W | 250 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Power connectors | 1x 6-pin | None |
| Board number | B339 | P455 |
| Width | — | 111 mm 4.4 inches |
API Support & Features
| DirectX | 10.1 (10_1) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 3.3 (full) 4.0 (partial) | 2.1 |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 4.1 | 3.0 |
