AMD Radeon RX 6800 vs NVIDIA GeForce RTX 3080 Ti 20 GB
Processeur graphique
| Nom du GPU | Navi 21 | GA102 |
|---|---|---|
| GPU variant | Navi 21 XL (215-121000187) | GA102-225-A1 |
| Architecture | RDNA 2.0 | Ampere |
| Fonderie | TSMC | Samsung |
| Taille du processus | 7 nm | 8 nm |
| Transistors | 26,800 million | 28,300 million |
| Taille des matrices | 520 mm² | 628 mm² |
Carte graphique
| Date de publication | Oct 28th, 2020 | Jan 2022 |
|---|---|---|
| gpu.details.availability | Nov 18th, 2020 | 2022 |
| Génération | Navi II | GeForce 30 |
| Prédécesseur | Navi | GeForce 20 |
| Production | Active | Active |
| Prix de lancement | 579 USD | 1,199 USD |
| Bus interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Critiques | 22 in our database | 50 in our database |
| Successeur | Navi III | — |
Vitesse clock
| Base clock | 1700 MHz | 1335 MHz |
|---|---|---|
| Game clock | 1815 MHz | — |
| Boost clock | 2105 MHz | 1665 MHz |
| Mémoire clock | 2000 MHz 16 Gbps effective | 1188 MHz 19 Gbps effective |
Mémoire
| Taille de la mémoire | 16 GB | 20 GB |
|---|---|---|
| Type de mémoire | GDDR6 | GDDR6X |
| Bus mémoire | 256 bit | 320 bit |
| Bande passante | 512.0 GB/s | 760.3 GB/s |
Render Config
| Shading units | 3840 | 10240 |
|---|---|---|
| TMUs | 240 | 320 |
| ROPs | 96 | 112 |
| Compute units | 60 | — |
| RT cores | 60 | 80 |
| gpu.details.l0-cache | 32 KB per WGP | — |
| Cache L1 | 128 KB per Array | 128 KB (per SM) |
| Cache L2 | 4 MB | 6 MB |
| gpu.details.l3-cache | 128 MB | — |
| Comptage SM | — | 80 |
| Tensor cores | — | 320 |
Performance théorique
| Taux de pixel | 202.1 GPixel/s | 186.5 GPixel/s |
|---|---|---|
| Taux de texture | 505.2 GTexel/s | 532.8 GTexel/s |
| FP16 (half) performance | 32.33 TFLOPS (2:1) | 34.10 TFLOPS (1:1) |
| FP32 (float) performance | 16.17 TFLOPS | 34.10 TFLOPS |
| FP64 (double) performance | 1,010 GFLOPS (1:16) | 532.8 GFLOPS (1:64) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 267 mm 10.5 inches | 285 mm 11.2 inches |
| Taille | 120 mm 4.7 inches | 112 mm 4.4 inches |
| Taille | 40 mm 1.6 inches | 40 mm 1.6 inches |
| TDP | 250 W | 350 W |
| Suggestions pour le PSU | 600 W | 750 W |
| Sorties | 1x HDMI2x DisplayPort1x USB Type-C | 1x HDMI3x DisplayPort |
| Connecteurs de puissance | 2x 8-pin | 1x 12-pin |
| Numéro de pièce | 102-D41209 | — |
| Board number | 109-D412A7 | — |
Caractéristiques graphiques
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 3.0 |
| Vulkan | 1.2 | 1.2 |
| Shader model | 6.5 | 6.6 |
| CUDA | — | 8.6 |
