AMD Radeon R9 M280X vs ATI Radeon HD 3850 AGP
Graphics Processor
| GPU model | Saturn | RV670 |
|---|---|---|
| GPU variant | Saturn XT | RV670 PRO (215-0708003) |
| Architecture | GCN 2.0 | TeraScale |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 55 nm |
| Number of transistors | 2,080 million | 666 million |
| Die size | 160 mm² | 192 mm² |
Mobile graphics
| Release date | Feb 5th, 2015 | — |
|---|---|---|
| Generation | Crystal System (R9 M200) | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x16 | — |
| Predecessor | Solar System | — |
| Successor | Mobility Radeon | — |
Clocks
| Base clock | 900 MHz | — |
|---|---|---|
| Boost clock | 1000 MHz | — |
| Memory clock | 1375 MHz 5.5 Gbps effective | 828 MHz 1656 Mbps effective |
| GPU clock | — | 668 MHz |
Memory Configuration
| Memory size | 4 GB | 512 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR3 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 88.00 GB/s | 52.99 GB/s |
Render Configuration
| Shading units | 896 | 320 |
|---|---|---|
| TMUs | 56 | 16 |
| ROPs | 16 | 16 |
| Compute units | 14 | 4 |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | 256 KB |
Performance
| Pixel rate | 16.00 GPixel/s | 10.69 GPixel/s |
|---|---|---|
| Texture rate | 56.00 GTexel/s | 10.69 GTexel/s |
| FP32 (float) performance | 1.792 TFLOPS | 427.5 GFLOPS |
| FP64 (double) performance | 112.0 GFLOPS (1:16) | 85.50 GFLOPS (1:5) |
Dimensions & Outputs
| TDP | unknown | 75 W |
|---|---|---|
| Outputs | No outputs | 2x DVI1x S-Video |
| Slot width | — | Single-slot |
| Suggested PSU | — | 250 W |
| Power connectors | — | 1x 8-pin |
| Board number | — | B340 |
API Support & Features
| DirectX | 12 (12_0) | 10.1 (10_1) |
|---|---|---|
| OpenGL | 4.6 | 3.3 (full) 4.0 (partial) |
| OpenCL | 2.0 | — |
| Vulkan | 1.2 | — |
| Shader model | 6.3 | 4.1 |
Other Features
Graphics Card
| Release date | — | Jan 3rd, 2008 |
|---|---|---|
| Generation | — | Radeon R600 |
| Production | — | End-of-life |
| Interface | — | AGP 8x |
| Reviews | — | 71 in our database |
| Predecessor | — | Radeon R500 PCIe |
| Successor | — | Radeon R700 |
