AMD Radeon RX 540 Mobile vs NVIDIA GeForce 945A
Graphics Processor
| GPU model | Lexa | GM108 |
|---|---|---|
| GPU variant | Lexa PRO (215-0904018) | — |
| Architecture | GCN 4.0 | Maxwell |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 28 nm |
| Number of transistors | 2,200 million | unknown |
| Die size | 103 mm² | unknown |
Mobile graphics
| Release date | Nov 11th, 2017 | Mar 13th, 2015 |
|---|---|---|
| Generation | Mobility Radeon (RX M500) | GeForce 900A |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x8 |
| Predecessor | Crystal System | GeForce 800A |
Clocks
| Base clock | 1124 MHz | 1006 MHz |
|---|---|---|
| Boost clock | 1219 MHz | 1189 MHz |
| Memory clock | 1500 MHz 6 Gbps effective | 1253 MHz 5 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 64 bit |
| Bandwidth | 96.00 GB/s | 40.10 GB/s |
Render Configuration
| Shading units | 512 | 384 |
|---|---|---|
| TMUs | 32 | 24 |
| ROPs | 16 | 8 |
| Compute units | 8 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SMM) |
| Cache L2 | 512 KB | 1024 KB |
| SMM count | — | 3 |
Performance
| Pixel rate | 19.50 GPixel/s | 9.512 GPixel/s |
|---|---|---|
| Texture rate | 39.01 GTexel/s | 28.54 GTexel/s |
| FP16 (half) performance | 1,248 GFLOPS (1:1) | — |
| FP32 (float) performance | 1,248 GFLOPS | 913.2 GFLOPS |
| FP64 (double) performance | 78.02 GFLOPS (1:16) | 28.54 GFLOPS (1:32) |
Dimensions & Outputs
| Slot width | IGP | MXM Module |
|---|---|---|
| TDP | 50 W | 33 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | — |
API Support & Features
| DirectX | 12 (12_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.1 |
| Shader model | 6.4 | 5.1 |
| CUDA | — | 5.0 |
