NVIDIA Quadro P400 vs NVIDIA Quadro P620
Graphics Processor
| GPU model | GP107 | GP107 |
|---|---|---|
| Architecture | Pascal | Pascal |
| Foundry | Samsung | Samsung |
| Manufacturing process | 14 nm | 14 nm |
| Number of transistors | 3,300 million | 3,300 million |
| Die size | 132 mm² | 132 mm² |
Graphics Card
| Release date | Feb 7th, 2017 | Feb 1st, 2018 |
|---|---|---|
| Generation | Quadro | Quadro |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x16 | PCIe 3.0 x16 |
Clocks
| Base clock | 1228 MHz | 1266 MHz |
|---|---|---|
| Boost clock | 1252 MHz | 1354 MHz |
| Memory clock | 1002 MHz 4 Gbps effective | 1252 MHz 5 Gbps effective |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | GDDR5 | GDDR5 |
| Memory bus width | 64 bit | 128 bit |
| Bandwidth | 32.06 GB/s | 80.13 GB/s |
Render Configuration
| Shading units | 256 | 512 |
|---|---|---|
| TMUs | 16 | 32 |
| ROPs | 16 | 16 |
| SM count | 2 | 4 |
| Cache L1 | 48 KB (per SM) | 48 KB (per SM) |
| Cache L2 | 512 KB | 1024 KB |
Performance
| Pixel rate | 20.03 GPixel/s | 21.66 GPixel/s |
|---|---|---|
| Texture rate | 20.03 GTexel/s | 43.33 GTexel/s |
| FP16 (half) performance | 10.02 GFLOPS (1:64) | 21.66 GFLOPS (1:64) |
| FP32 (float) performance | 641.0 GFLOPS | 1,386 GFLOPS |
| FP64 (double) performance | 20.03 GFLOPS (1:32) | 43.33 GFLOPS (1:32) |
Dimensions & Outputs
| Slot width | Single-slot | Single-slot |
|---|---|---|
| Length | 150 mm 5.9 inches | 145 mm 5.7 inches |
| Width | 69 mm 2.7 inches | 69 mm 2.7 inches |
| TDP | 30 W | 40 W |
| Suggested PSU | 200 W | 200 W |
| Outputs | 3x mini-DisplayPort | 4x mini-DisplayPort |
| Power connectors | None | None |
| Board number | PG212 SKU 500 | — |
API Support & Features
| DirectX | 12 (12_1) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| CUDA | 6.1 | 6.1 |
| Shader model | 6.4 | 6.4 |
