AMD Radeon R7 M260 vs NVIDIA GeForce 940MX
Graphics Processor
| GPU model | Topaz | GM107 |
|---|---|---|
| GPU variant | Topaz XT (216-0864030) | N16S-GT1R |
| Architecture | GCN 3.0 | Maxwell |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 1,550 million | 1,870 million |
| Die size | 125 mm² | 148 mm² |
Mobile graphics
| Release date | Jun 11th, 2014 | Jun 28th, 2016 |
|---|---|---|
| Generation | Crystal System (R7 M200) | GeForce 900M |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x8 |
| Predecessor | Solar System | GeForce 800M |
| Successor | Mobility Radeon | GeForce 10 Mobile |
Clocks
| Base clock | 940 MHz | 795 MHz |
|---|---|---|
| Boost clock | 980 MHz | 861 MHz |
| Memory clock | 900 MHz 1800 Mbps effective | 1253 MHz 5 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | DDR3 | GDDR5 |
| Memory bus width | 64 bit | 64 bit |
| Bandwidth | 14.40 GB/s | 40.10 GB/s |
Render Configuration
| Shading units | 384 | 512 |
|---|---|---|
| TMUs | 24 | 32 |
| ROPs | 8 | 8 |
| Compute units | 6 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SMM) |
| Cache L2 | 128 KB | 1024 KB |
| SMM count | — | 4 |
Performance
| Pixel rate | 7.840 GPixel/s | 6.888 GPixel/s |
|---|---|---|
| Texture rate | 23.52 GTexel/s | 27.55 GTexel/s |
| FP16 (half) performance | 752.6 GFLOPS (1:1) | — |
| FP32 (float) performance | 752.6 GFLOPS | 881.7 GFLOPS |
| FP64 (double) performance | 47.04 GFLOPS (1:16) | 27.55 GFLOPS (1:32) |
Dimensions & Outputs
| TDP | unknown | 23 W |
|---|---|---|
| Outputs | No outputs | No outputs |
| Board number | C720 | — |
| Slot width | — | MXM Module |
| Power connectors | — | None |
API Support & Features
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.0 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 6.3 | 5.1 |
| CUDA | — | 5.0 |
