AMD Radeon RX 7900 XT vs NVIDIA GeForce RTX 3080 Ti
Processeur graphique
| Nom du GPU | Navi 31 | GA102 |
|---|---|---|
| GPU variant | Navi 31 XTX | GA102-300-A1 |
| Architecture | RDNA 3.0 | Ampere |
| Fonderie | TSMC | TSMC |
| Taille du processus | 5 nm | 7 nm |
| Transistors | unknown | 40,000 million |
| Taille des matrices | unknown | 627 mm² |
Carte graphique
| Date de publication | 2022 | 2020 |
|---|---|---|
| Génération | Navi III | GeForce 30 |
| Production | Unreleased | Unreleased |
| Bus interface | PCIe 4.0 x16 | PCIe 4.0 x16 |
| Prédécesseur | Navi II | — |
| Prix de lancement | — | 1,399 USD |
Vitesse clock
| Base clock | 1800 MHz | 1410 MHz |
|---|---|---|
| Game clock | 1900 MHz | — |
| Boost clock | 2000 MHz | 1740 MHz |
| Mémoire clock | 2250 MHz 18 Gbps effective | 2375 MHz 19000 MHz effective |
Mémoire
| Taille de la mémoire | 16 GB | 12 GB |
|---|---|---|
| Type de mémoire | GDDR6 | GDDR6X |
| Bus mémoire | 256 bit | 384 bit |
| Bande passante | 576.0 GB/s | 912.0 GB/s |
Render Config
| Shading units | 15360 | 5120 |
|---|---|---|
| TMUs | 960 | 320 |
| ROPs | 256 | 96 |
| Compute units | 240 | — |
| RT cores | 240 | 160 |
| gpu.details.l0-cache | 32 KB per WGP | — |
| Cache L1 | 128 KB per Array | 192 KB (per SM) |
| Cache L2 | 4 MB | 6 MB |
| gpu.details.l3-cache | 512 MB | — |
| Comptage SM | — | 80 |
| Tensor cores | — | 640 |
Performance théorique
| Taux de pixel | 512.0 GPixel/s | 167.0 GPixel/s |
|---|---|---|
| Taux de texture | 1,920 GTexel/s | 556.8 GTexel/s |
| FP16 (half) performance | 122.9 TFLOPS (2:1) | 35.64 TFLOPS (2:1) |
| FP32 (float) performance | 61.44 TFLOPS | 17.82 TFLOPS |
| FP64 (double) performance | 3.840 TFLOPS (1:16) | 556.8 GFLOPS (1:32) |
Board Design
| Taille Slot | Dual-slot | Dual-slot |
|---|---|---|
| Longueur | 267 mm 10.5 inches | 267 mm 10.5 inches |
| Taille | 135 mm 5.3 inches | — |
| Taille | 50 mm 2 inches | — |
| TDP | 350 W | 320 W |
| Suggestions pour le PSU | 750 W | 700 W |
| Sorties | 1x HDMI3x DisplayPort | 1x HDMI3x DisplayPort1x USB Type-C |
| Connecteurs de puissance | 2x 8-pin | 1x 12-pin |
| Numéro de pièce | — | — |
| Board number | — | PG132 SKU 20 |
Caractéristiques graphiques
| DirectX | 12 Ultimate (12_2) | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 2.1 | 2.0 |
| Vulkan | 1.2 | 1.2.140 |
| Shader model | 6.5 | 6.5 |
| CUDA | — | 8.5 |
