AMD Radeon R5 M255 vs NVIDIA GeForce 7150M + nForce 630M
Graphics Processor
| GPU model | Topaz | C67 |
|---|---|---|
| GPU variant | Topaz PRO (216-0864032) | — |
| Architecture | GCN 3.0 | Curie |
| Foundry | TSMC | — |
| Manufacturing process | 28 nm | 90 nm |
| Number of transistors | 1,550 million | 112 million |
| Die size | 125 mm² | 81 mm² |
Mobile graphics
| Release date | Oct 12th, 2014 | — |
|---|---|---|
| Generation | Crystal System (R5 M200) | — |
| Production | End-of-life | — |
| Interface | PCIe 3.0 x8 | — |
| Predecessor | Solar System | — |
| Successor | Mobility Radeon | — |
Clocks
| Base clock | 925 MHz | — |
|---|---|---|
| Boost clock | 940 MHz | — |
| Memory clock | 1000 MHz 4 Gbps effective | System Shared |
| GPU clock | — | 425 MHz |
Memory Configuration
| Memory size | 1024 MB | System Shared |
|---|---|---|
| Memory type | GDDR5 | System Shared |
| Memory bus width | 128 bit | System Shared |
| Bandwidth | 64.00 GB/s | System Dependent |
Render Configuration
| Shading units | 384 | — |
|---|---|---|
| TMUs | 24 | 2 |
| ROPs | 8 | 2 |
| Compute units | 6 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 256 KB | — |
| Pixel shaders | — | 2 |
| Vertex shaders | — | 1 |
Performance
| Pixel rate | 7.520 GPixel/s | 850.0 MPixel/s |
|---|---|---|
| Texture rate | 22.56 GTexel/s | 850.0 MTexel/s |
| FP16 (half) performance | 721.9 GFLOPS (1:1) | — |
| FP32 (float) performance | 721.9 GFLOPS | — |
| FP64 (double) performance | 45.12 GFLOPS (1:16) | — |
| Vertex rate | — | 106.3 MVertices/s |
Dimensions & Outputs
| TDP | unknown | unknown |
|---|---|---|
| Outputs | No outputs | No outputs |
| Slot width | — | IGP |
API Support & Features
| DirectX | 12 (12_0) | 9.0c (9_3) |
|---|---|---|
| OpenGL | 4.6 | 2.1 |
| OpenCL | 2.0 | — |
| Vulkan | 1.2 | — |
| Shader model | 6.3 | 3.0 |
Other Features
Integrated Graphics
| Release date | — | Nov 16th, 2007 |
|---|---|---|
| Generation | — | GeForce 7M IGP (7000M) |
| Production | — | End-of-life |
| Interface | — | PCIe 1.0 x16 |
| Predecessor | — | GeForce Go 6 IGP |
| Successor | — | GeForce 8M IGP |
