AMD Radeon Pro 555 vs NVIDIA Tesla C870
Graphics Processor
| GPU model | Polaris 21 | G80 |
|---|---|---|
| GPU variant | Polaris 21 PRO | — |
| Architecture | GCN 4.0 | Tesla |
| Foundry | GlobalFoundries | TSMC |
| Manufacturing process | 14 nm | 90 nm |
| Number of transistors | 3,000 million | 681 million |
| Die size | 123 mm² | 484 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 | 600 MHz |
|---|---|---|
| Memory clock | 1275 MHz 5.1 Gbps effective | 800 MHz 1600 Mbps effective |
| Shader clock | — | 1350 MHz |
Memory Configuration
| Memory size | 2 GB | 1536 MB |
|---|---|---|
| Memory type | GDDR5 | GDDR3 |
| Memory bus width | 128 bit | 384 bit |
| Bandwidth | 81.60 GB/s | 76.80 GB/s |
Render Configuration
| Shading units | 768 | 128 |
|---|---|---|
| TMUs | 48 | 32 |
| ROPs | 16 | 24 |
| Compute units | 12 | — |
| Cache L1 | 16 KB (per CU) | — |
| Cache L2 | 1024 KB | 96 KB |
| SM count | — | 16 |
Performance
| Pixel rate | 13.60 GPixel/s | 14.40 GPixel/s |
|---|---|---|
| Texture rate | 40.80 GTexel/s | 38.40 GTexel/s |
| FP16 (half) performance | 1,306 GFLOPS (1:1) | — |
| FP32 (float) performance | 1,306 GFLOPS | 345.6 GFLOPS |
| FP64 (double) performance | 81.60 GFLOPS (1:16) | — |
Dimensions & Outputs
| Slot width | IGP | Dual-slot |
|---|---|---|
| TDP | 75 W | 171 W |
| Outputs | No outputs | No outputs |
| Power connectors | None | 2x 6-pin |
| Suggested PSU | — | 450 W |
| Board number | — | P357 |
API Support & Features
| DirectX | 12 (12_0) | 11.1 (10_0) |
|---|---|---|
| OpenGL | 4.6 | 3.3 |
| OpenCL | 2.1 | 1.1 (1.0) |
| Vulkan | 1.2 | — |
| Shader model | 6.4 | 4.0 |
| CUDA | — | 1.0 |
Other Features
Graphics Card
| Release date | — | May 2nd, 2007 |
|---|---|---|
| Generation | — | Tesla |
| Production | — | End-of-life |
| Launch price | — | 1,499 USD |
| Interface | — | PCIe 1.0 x16 |
