ATI Radeon HD 3650 AGP vs ATI Radeon HD 3850 AGP
Graphics Processor
| GPU model | RV635 | RV670 |
|---|---|---|
| GPU variant | RV635 PRO (215-0682008) | RV670 PRO (215-0708003) |
| Architecture | TeraScale | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 55 nm | 55 nm |
| Number of transistors | 378 million | 666 million |
| Die size | 135 mm² | 192 mm² |
Graphics Card
| Release date | Jan 23rd, 2008 | Jan 3rd, 2008 |
|---|---|---|
| Generation | Radeon R600 | Radeon R600 |
| Production | End-of-life | End-of-life |
| Interface | AGP 8x | AGP 8x |
| Reviews | 28 in our database | 71 in our database |
| Predecessor | Radeon R500 PCIe | Radeon R500 PCIe |
| Successor | Radeon R700 | Radeon R700 |
Clocks
| GPU clock | 725 MHz | 668 MHz |
|---|---|---|
| Memory clock | 500 MHz 1000 Mbps effective | 828 MHz 1656 Mbps effective |
Memory Configuration
| Memory size | 512 MB | 512 MB |
|---|---|---|
| Memory type | DDR2 | GDDR3 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 16.00 GB/s | 52.99 GB/s |
Render Configuration
| Shading units | 120 | 320 |
|---|---|---|
| TMUs | 8 | 16 |
| ROPs | 4 | 16 |
| Compute units | 3 | 4 |
| Cache L2 | 128 KB | 256 KB |
Performance
| Pixel rate | 2.900 GPixel/s | 10.69 GPixel/s |
|---|---|---|
| Texture rate | 5.800 GTexel/s | 10.69 GTexel/s |
| FP32 (float) performance | 174.0 GFLOPS | 427.5 GFLOPS |
| FP64 (double) performance | — | 85.50 GFLOPS (1:5) |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| TDP | 65 W | 75 W |
| Suggested PSU | 250 W | 250 W |
| Outputs | 2x DVI1x S-Video | 2x DVI1x S-Video |
| Power connectors | None | 1x 8-pin |
| Board number | B381 | B340 |
API Support & Features
| DirectX | 10.1 (10_1) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 3.3 | 3.3 (full) 4.0 (partial) |
| OpenCL | — | — |
| Vulkan | — | — |
| Shader model | 4.1 | 4.1 |
