ATI Radeon HD 4450 vs NVIDIA GeForce GTX 550 Ti
Processeur graphique
| Nom du GPU | RV710 | GF116 |
|---|---|---|
| GPU variant | RV710 (215-0725016) | GF116-400-A1 |
| Architecture | TeraScale | Fermi 2.0 |
| Fonderie | TSMC | TSMC |
| Taille du processus | 55 nm | 40 nm |
| Transistors | 242 million | 1,170 million |
| Taille des matrices | 73 mm² | 238 mm² |
Carte graphique
| Date de publication | Nov 18th, 2011 | Mar 15th, 2011 |
|---|---|---|
| Génération | Radeon R700 | GeForce 500 |
| Production | End-of-life | End-of-life |
| Bus interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
| Prédécesseur | Radeon R600 | GeForce 400 |
| Successeur | Evergreen | GeForce 600 |
| Prix de lancement | — | 149 USD |
| Critiques | — | 62 in our database |
Vitesse clock
| GPU clock | 600 MHz | 900 MHz |
|---|---|---|
| Mémoire clock | 400 MHz 800 Mbps effective | 1026 MHz 4.1 Gbps effective |
| Shader clock | — | 1800 MHz |
Mémoire
| Taille de la mémoire | 512 MB | 1024 MB |
|---|---|---|
| Type de mémoire | DDR2 | GDDR5 |
| Bus mémoire | 64 bit | 192 bit |
| Bande passante | 6.400 GB/s | 98.50 GB/s |
Render Config
| Shading units | 80 | 192 |
|---|---|---|
| TMUs | 8 | 32 |
| ROPs | 4 | 24 |
| Compute units | 1 | — |
| Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
| Cache L2 | 64 KB | 384 KB |
| Comptage SM | — | 4 |
Performance théorique
| Taux de pixel | 2.400 GPixel/s | 7.200 GPixel/s |
|---|---|---|
| Taux de texture | 4.800 GTexel/s | 28.80 GTexel/s |
| FP32 (float) performance | 96.00 GFLOPS | 691.2 GFLOPS |
| FP64 (double) performance | — | 57.60 GFLOPS (1:12) |
Board Design
| Taille Slot | Single-slot | Dual-slot |
|---|---|---|
| Longueur | 168 mm 6.6 inches | 210 mm 8.3 inches |
| TDP | 25 W | 116 W |
| Suggestions pour le PSU | 200 W | 300 W |
| Sorties | 1x DVI1x HDMI1x DisplayPort | 2x DVI1x mini-HDMI |
| Connecteurs de puissance | None | 1x 6-pin |
| Board number | — | P1050 |
Caractéristiques graphiques
| DirectX | 10.1 (10_1) | 12 (11_0) |
|---|---|---|
| OpenGL | 3.3 | 4.6 |
| OpenCL | 1.1 | 1.1 |
| Vulkan | — | — |
| Shader model | 4.1 | 5.1 |
| CUDA | — | 2.1 |
