ATI FireGL V8650 vs ATI Radeon HD 3870 Mac Edition
Graphics Processor
| GPU model | R600 | RV670 |
|---|---|---|
| GPU variant | R600 V8650 (215RGIDKA13FG) | RV670 XT (215-0708005) |
| Architecture | TeraScale | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 80 nm | 55 nm |
| Number of transistors | 720 million | 666 million |
| Die size | 420 mm² | 192 mm² |
Graphics Card
| Release date | Aug 6th, 2007 | Jun 12th, 2008 |
|---|---|---|
| Generation | FireGL | Radeon R600 |
| Production | End-of-life | End-of-life |
| Launch price | 2,799 USD | — |
| Interface | PCIe 1.0 x16 | PCIe 2.0 x16 |
| Reviews | 5 in our database | 80 in our database |
| Predecessor | — | Radeon R500 PCIe |
| Successor | — | Radeon R700 |
Clocks
| GPU clock | 688 MHz | 777 MHz |
|---|---|---|
| Memory clock | 868 MHz 1736 Mbps effective | 1126 MHz 2.3 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 512 MB |
|---|---|---|
| Memory type | GDDR4 | GDDR4 |
| Memory bus width | 512 bit | 256 bit |
| Bandwidth | 111.1 GB/s | 72.06 GB/s |
Render Configuration
| Shading units | 320 | 320 |
|---|---|---|
| TMUs | 16 | 16 |
| ROPs | 16 | 16 |
| Compute units | 4 | 4 |
| Cache L2 | 256 KB | 256 KB |
Performance
| Pixel rate | 11.01 GPixel/s | 12.43 GPixel/s |
|---|---|---|
| Texture rate | 11.01 GTexel/s | 12.43 GTexel/s |
| FP32 (float) performance | 440.3 GFLOPS | 497.3 GFLOPS |
| FP64 (double) performance | — | 99.46 GFLOPS (1:5) |
Dimensions & Outputs
| Slot width | Dual-slot | Single-slot |
|---|---|---|
| Length | 254 mm 10 inches | 241 mm 9.5 inches |
| Width | 111 mm 4.4 inches | — |
| TDP | unknown | 106 W |
| Suggested PSU | 200 W | 300 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Power connectors | 1x 6-pin + 1x 8-pin | 1x 6-pin |
| Board number | B313 | — |
API Support & Features
| DirectX | 10.0 (10_0) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 3.3 (full) 4.0 (partial) | 3.3 (full) 4.0 (partial) |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 4.0 | 4.1 |
