AMD Radeon Pro 555 vs NVIDIA GRID K340
Graphics Processor
| GPU model | Polaris 21 | GK107 |
|---|---|---|
| GPU variant | Polaris 21 PRO | — |
| Architecture | GCN 4.0 | Kepler |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 28 nm |
| Number of transistors | 3,000 million | 1,270 million |
| Die size | 123 mm² | 118 mm² |
Mobile graphics
| Release date | Jun 5th, 2017 | — |
|---|---|---|
| Generation | Radeon Pro Mac (500 Series) | — |
| Production | Active | — |
| Interface | PCIe 3.0 x8 | — |
Clocks
| GPU clock | 850 MHz | 954 MHz |
|---|---|---|
| Memory clock | 1275 MHz 5.1 Gbps effective | 1250 MHz 5 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 1024 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 81.60 GB/s | 80.00 GB/s |
Render Configuration
| Shading units | 768 | 384 |
|---|---|---|
| TMUs | 48 | 32 |
| ROPs | 16 | 16 |
| Compute units | 12 | — |
| Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
| Cache L2 | 1024 KB | 128 KB |
| SMX count | — | 2 |
Performance
| Pixel rate | 13.60 GPixel/s | 7.632 GPixel/s |
|---|---|---|
| Texture rate | 40.80 GTexel/s | 30.53 GTexel/s |
| FP16 (half) performance | 1,306 GFLOPS (1:1) | — |
| FP32 (float) performance | 1,306 GFLOPS | 732.7 GFLOPS |
| FP64 (double) performance | 81.60 GFLOPS (1:16) | 30.53 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | IGP | Dual-slot |
|---|---|---|
| TDP | 75 W | 225 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | 1x 8-pin |
| Length | — | 267 mm 10.5 inches |
| Suggested PSU | — | 550 W |
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 | — | 3.0 |
Other Features
Graphics Card
| Release date | — | Jul 23rd, 2013 |
|---|---|---|
| Generation | — | GRID |
| Production | — | End-of-life |
| Launch price | — | 3,299 USD |
| Interface | — | PCIe 3.0 x16 |
