AMD Radeon R9 M385 vs AMD Stream Processor
Graphics Processor
| GPU model | Strato | R580 |
|---|---|---|
| GPU variant | Strato XT | R580 XTX |
| Architecture | GCN 2.0 | R500 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 90 nm |
| Number of transistors | 2,080 million | 384 million |
| Die size | 160 mm² | 352 mm² |
Mobile graphics
| Release date | May 5th, 2015 | — |
|---|---|---|
| Generation | Crystal System (R9 M300) | — |
| 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 | 1200 MHz 4.8 Gbps effective | 648 MHz 1296 Mbps effective |
| GPU clock | — | 594 MHz |
Memory Configuration
| Memory size | 4 GB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR3 |
| Memory bus width | 128 bit | 256 bit |
| Bandwidth | 76.80 GB/s | 41.47 GB/s |
Render Configuration
| Shading units | 896 | — |
|---|---|---|
| TMUs | 56 | 16 |
| ROPs | 16 | 16 |
| Compute units | 14 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 48 |
| Vertex shaders | — | 8 |
Performance
| Pixel rate | 16.00 GPixel/s | 9.504 GPixel/s |
|---|---|---|
| Texture rate | 56.00 GTexel/s | 9.504 GTexel/s |
| FP32 (float) performance | 1.792 TFLOPS | — |
| FP64 (double) performance | 112.0 GFLOPS (1:16) | — |
| Vertex rate | — | 1.188 GVertices/s |
Dimensions & Outputs
| TDP | unknown | 165 W |
|---|---|---|
| Outputs | No outputs | 2x DVI1x S-Video |
| Slot width | — | Dual-slot |
| Length | — | 241 mm 9.5 inches |
| Width | — | 111 mm 4.4 inches |
| Suggested PSU | — | 450 W |
| Power connectors | — | 1x 6-pin |
API Support & Features
| DirectX | 12 (12_0) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 4.6 | 2.1 (full) 3.0 (partial) |
| OpenCL | 2.0 | — |
| Vulkan | 1.2 | — |
| Shader model | 6.3 | 3.0 |
Other Features
Graphics Card
| Release date | — | 2006 |
|---|---|---|
| Generation | — | FireStream |
| Production | — | End-of-life |
| Interface | — | PCIe 1.0 x16 |
