AMD Radeon R9 M275 vs ATI Radeon 7500 Mac Edition
Graphics Processor
| GPU model | Venus | RV200 |
|---|---|---|
| GPU variant | Venus XTX | — |
| Architecture | GCN 1.0 | Rage 7 |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 150 nm |
| Number of transistors | 1,500 million | 60 million |
| Die size | 123 mm² | 83 mm² |
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 | — |
Clocks
| Base clock | 900 MHz | — |
|---|---|---|
| Boost clock | 925 MHz | — |
| Memory clock | 1000 MHz 4 Gbps effective | 180 MHz 360 Mbps effective |
| GPU clock | — | 260 MHz |
Memory Configuration
| Memory size | 2 GB | 32 MB |
|---|---|---|
| Memory type | GDDR5 | DDR |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 64.00 GB/s | 5.760 GB/s |
Render Configuration
| Shading units | 640 | — |
|---|---|---|
| TMUs | 40 | 6 |
| ROPs | 16 | 2 |
| Compute units | 10 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 2 |
| Vertex shaders | — | 1 |
Performance
| Pixel rate | 14.80 GPixel/s | 520.0 MPixel/s |
|---|---|---|
| Texture rate | 37.00 GTexel/s | 1.560 GTexel/s |
| FP32 (float) performance | 1,184 GFLOPS | — |
| FP64 (double) performance | 74.00 GFLOPS (1:16) | — |
| Vertex rate | — | 65.00 MVertices/s |
Dimensions & Outputs
| TDP | unknown | 23 W |
|---|---|---|
| Outputs | No outputs | 1x DVI1x VGA |
| Slot width | — | Single-slot |
| Suggested PSU | — | 200 W |
| Power connectors | — | None |
API Support & Features
| DirectX | 12 (11_1) | 7.0 |
|---|---|---|
| OpenGL | 4.6 | 1.3 |
| OpenCL | 1.2 | — |
| Vulkan | 1.2 | — |
| Shader model | 5.1 | — |
| Pixel shader | — | 1.4 |
| Vertex shader | — | 1.1 |
Other Features
Graphics Card
| Release date | — | Apr 16th, 2002 |
|---|---|---|
| Generation | — | Radeon R200 |
| Production | — | End-of-life |
| Interface | — | AGP 4x |
| Predecessor | — | Radeon R100 |
| Successor | — | Radeon R300 |
