AMD Radeon R7 250 OEM vs AMD Radeon R9 M275
Graphics Processor
| GPU model | Oland | Venus |
|---|---|---|
| GPU variant | Oland XT (215-0837000) | Venus XTX |
| Architecture | GCN 1.0 | GCN 1.0 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 950 million | 1,500 million |
| Die size | 77 mm² | 123 mm² |
Graphics Card
| Release date | Oct 8th, 2013 | — |
|---|---|---|
| Generation | Volcanic Islands | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x8 | — |
| Reviews | 24 in our database | — |
| Predecessor | Sea Islands | — |
| Successor | Pirate Islands | — |
Clocks
| Base clock | 1000 MHz | 900 MHz |
|---|---|---|
| Boost clock | 1050 MHz | 925 MHz |
| Memory clock | 1000 MHz 2 Gbps effective | 1000 MHz 4 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | DDR3 | GDDR5 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 32.00 GB/s | 64.00 GB/s |
Render Configuration
| Shading units | 384 | 640 |
|---|---|---|
| TMUs | 24 | 40 |
| ROPs | 8 | 16 |
| Compute units | 6 | 10 |
| Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
| Cache L2 | 256 KB | 256 KB |
Performance
| Pixel rate | 8.400 GPixel/s | 14.80 GPixel/s |
|---|---|---|
| Texture rate | 25.20 GTexel/s | 37.00 GTexel/s |
| FP32 (float) performance | 806.4 GFLOPS | 1,184 GFLOPS |
| FP64 (double) performance | 50.40 GFLOPS (1:16) | 74.00 GFLOPS (1:16) |
Dimensions & Outputs
| Slot width | Dual-slot | — |
|---|---|---|
| TDP | 65 W | unknown |
| Suggested PSU | 250 W | — |
| Outputs | 1x DVI1x HDMI1x VGA | No outputs |
| Power connectors | None | — |
| Board number | C550, C552 | — |
API Support & Features
| DirectX | 12 (11_1) | 12 (11_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 1.2 | 1.2 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 5.1 | 5.1 |
Other Features
Mobile graphics
| Release date | — | Jan 28th, 2014 |
|---|---|---|
| Generation | — | Crystal System (R9 M200) |
| Production | — | End-of-life |
| Interface | — | PCIe 3.0 x16 |
| Predecessor | — | Solar System |
| Successor | — | Mobility Radeon |
