AMD Radeon HD 6450 vs NVIDIA GeForce RTX 3080
Processeur graphique
| Nom du GPU | Caicos | GA102 |
|---|---|---|
| GPU variant | Caicos PRO | GA102-200-KD-A1 |
| Architecture | TeraScale 2 | Ampere |
| Fonderie | TSMC | Samsung |
| Taille du processus | 40 nm | 8 nm |
| Transistors | 370 million | 28,300 million |
| Taille des matrices | 67 mm² | 628 mm² |
Carte graphique
| Date de publication | Apr 7th, 2011 | Sep 1st, 2020 |
|---|---|---|
| Génération | Northern Islands | GeForce 30 |
| Production | End-of-life | Active |
| Prix de lancement | 55 USD | 699 USD |
| Bus interface | PCIe 2.0 x16 | PCIe 4.0 x16 |
| Critiques | 14 in our database | 99 in our database |
| Prédécesseur | Evergreen | GeForce 20 |
| Successeur | Southern Islands | — |
| gpu.details.availability | — | Sep 17th, 2020 |
| Prix courant | — | Amazon / Newegg |
Vitesse clock
| GPU clock | 625 MHz | — |
|---|---|---|
| Mémoire clock | 800 MHz 3.2 Gbps effective | 1188 MHz 19 Gbps effective |
| Base clock | — | 1440 MHz |
| Boost clock | — | 1710 MHz |
Mémoire
| Taille de la mémoire | 512 MB | 10 GB |
|---|---|---|
| Type de mémoire | GDDR5 | GDDR6X |
| Bus mémoire | 64 bit | 320 bit |
| Bande passante | 25.60 GB/s | 760.3 GB/s |
Render Config
| Shading units | 160 | 8704 |
|---|---|---|
| TMUs | 8 | 272 |
| ROPs | 4 | 96 |
| Compute units | 2 | — |
| Cache L1 | 8 KB (per CU) | 128 KB (per SM) |
| Cache L2 | 128 KB | 5 MB |
| Comptage SM | — | 68 |
| Tensor cores | — | 272 |
| RT cores | — | 68 |
Performance théorique
| Taux de pixel | 2.500 GPixel/s | 164.2 GPixel/s |
|---|---|---|
| Taux de texture | 5.000 GTexel/s | 465.1 GTexel/s |
| FP32 (float) performance | 200.0 GFLOPS | 29.77 TFLOPS |
| FP16 (half) performance | — | 29.77 TFLOPS (1:1) |
| FP64 (double) performance | — | 465.1 GFLOPS (1:64) |
Board Design
| Taille Slot | Single-slot | Dual-slot |
|---|---|---|
| Longueur | 168 mm 6.6 inches | 285 mm 11.2 inches |
| TDP | 18 W | 320 W |
| Suggestions pour le PSU | 200 W | 700 W |
| Sorties | 1x DVI1x HDMI1x VGA | 1x HDMI3x DisplayPort |
| Connecteurs de puissance | None | 1x 12-pin |
| Board number | C264 | PG132 SKU 30 |
| Taille | — | 112 mm 4.4 inches |
| Taille | — | 40 mm 1.6 inches |
Caractéristiques graphiques
| DirectX | 11.2 (11_0) | 12 Ultimate (12_2) |
|---|---|---|
| OpenGL | 4.4 | 4.6 |
| OpenCL | 1.2 | 3.0 |
| Vulkan | — | 1.2 |
| Shader model | 5.0 | 6.6 |
| CUDA | — | 8.6 |
