AMD Radeon E9173 PCIe vs NVIDIA GeForce 945A
Graphics Processor
| GPU model | Lexa | GM108 |
|---|---|---|
| GPU variant | E9170 | — |
| 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 | Oct 3rd, 2017 | Mar 13th, 2015 |
|---|---|---|
| Generation | Embedded (9000) | GeForce 900A |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x8 | PCIe 3.0 x8 |
| Predecessor | — | 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 | 64 bit | 64 bit |
| Bandwidth | 48.00 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 | 256 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 | Single-slot | MXM Module |
|---|---|---|
| TDP | 35 W | 33 W |
| Outputs | 1x DisplayPort2x mini-DisplayPort | No outputs |
| Power connectors | None | — |
| Part number | 102-D09126 | — |
| Board number | 109-D09187 | — |
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 |
