AMD Radeon RX 550 vs NVIDIA T400
Processeur graphique
| Nom du GPU | Lexa | TU117 |
|---|---|---|
| GPU variant | Lexa PRO (215-0904018) | — |
| Architecture | GCN 4.0 | Turing |
| Fonderie | GlobalFoundries | TSMC |
| Taille du processus | 14 nm | 12 nm |
| Transistors | 2,200 million | 4,700 million |
| Taille des matrices | 103 mm² | 200 mm² |
Carte graphique
| Date de publication | Apr 20th, 2017 | May 6th, 2021 |
|---|---|---|
| Génération | Polaris | Quadro |
| Production | End-of-life | Active |
| Prix de lancement | 79 USD | — |
| Bus interface | PCIe 3.0 x8 | PCIe 3.0 x16 |
| Prédécesseur | Arctic Islands | — |
| Successeur | Vega | — |
Vitesse clock
| Base clock | 1100 MHz | 420 MHz |
|---|---|---|
| Boost clock | 1183 MHz | 1425 MHz |
| Mémoire clock | 1750 MHz 7 Gbps effective | 1250 MHz 10 Gbps effective |
Mémoire
| Taille de la mémoire | 2 GB | 2 GB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR6 |
| Bus mémoire | 128 bit | 64 bit |
| Bande passante | 112.0 GB/s | 80.00 GB/s |
Render Config
| Shading units | 512 | 384 |
|---|---|---|
| TMUs | 32 | 24 |
| ROPs | 16 | 16 |
| Compute units | 8 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 512 KB | 1024 KB |
| Comptage SM | — | 6 |
Performance théorique
| Taux de pixel | 18.93 GPixel/s | 22.80 GPixel/s |
|---|---|---|
| Taux de texture | 37.86 GTexel/s | 34.20 GTexel/s |
| FP16 (half) performance | 1,211 GFLOPS (1:1) | 2.189 TFLOPS (2:1) |
| FP32 (float) performance | 1,211 GFLOPS | 1,094 GFLOPS |
| FP64 (double) performance | 75.71 GFLOPS (1:16) | 34.20 GFLOPS (1:32) |
Board Design
| Taille Slot | Dual-slot | Single-slot |
|---|---|---|
| Longueur | 145 mm 5.7 inches | — |
| TDP | 50 W | 30 W |
| Suggestions pour le PSU | 250 W | 200 W |
| Sorties | 1x DVI1x HDMI1x DisplayPort | 3x mini-DisplayPort |
| Connecteurs de puissance | None | None |
| Board number | D090-01 | — |
Caractéristiques graphiques
| DirectX | 12 (12_0) | 12 (12_1) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.4 | 6.6 |
| CUDA | — | 7.5 |
