Nom du GPU | Litho | RV770 |
---|---|---|
GPU variant | Litho XT | RV770 XT (215-0669049) |
Architecture | GCN 1.0 | TeraScale |
Fonderie | TSMC | TSMC |
Taille du processus | 28 nm | 55 nm |
Transistors | 690 million | 956 million |
Taille des matrices | 56 mm² | 256 mm² |
Date de publication | May 5th, 2015 | — |
---|---|---|
Génération | Crystal System (R7 M300) | — |
Production | End-of-life | — |
Bus interface | PCIe 3.0 x8 | — |
Prédécesseur | Solar System | — |
Successeur | Mobility Radeon | — |
Base clock | 900 MHz | — |
---|---|---|
Boost clock | 960 MHz | — |
Mémoire clock | 1150 MHz 4.6 Gbps effective | 900 MHz 3.6 Gbps effective |
GPU clock | — | 750 MHz |
Taille de la mémoire | 4 GB | 512 MB |
---|---|---|
Type de mémoire | GDDR5 | GDDR5 |
Bus mémoire | 128 bit | 256 bit |
Bande passante | 73.60 GB/s | 115.2 GB/s |
Shading units | 384 | 800 |
---|---|---|
TMUs | 24 | 40 |
ROPs | 8 | 16 |
Compute units | 6 | 10 |
Cache L1 | 16 KB (per CU) | 16 KB (per CU) |
Cache L2 | 256 KB | 256 KB |
Taux de pixel | 7.680 GPixel/s | 12.00 GPixel/s |
---|---|---|
Taux de texture | 23.04 GTexel/s | 30.00 GTexel/s |
FP32 (float) performance | 737.3 GFLOPS | 1,200 GFLOPS |
FP64 (double) performance | 46.08 GFLOPS (1:16) | 240.0 GFLOPS (1:5) |
TDP | unknown | 150 W |
---|---|---|
Sorties | No outputs | 2x DVI1x S-Video |
Taille Slot | — | Dual-slot |
Longueur | — | 241 mm 9.5 inches |
Taille | — | 111 mm 4.4 inches |
Taille | — | 40 mm 1.6 inches |
Suggestions pour le PSU | — | 450 W |
Connecteurs de puissance | — | 2x 6-pin |
Board number | — | B507-31 |
DirectX | 12 (11_1) | 10.1 (10_1) |
---|---|---|
OpenGL | 4.6 | 3.3 |
OpenCL | 1.2 | 1.1 |
Vulkan | 1.2 | — |
Shader model | 5.1 | 4.1 |
Date de publication | — | Jun 25th, 2008 |
---|---|---|
Génération | — | Radeon R700 |
Production | — | End-of-life |
Prix de lancement | — | 299 USD |
Bus interface | — | PCIe 2.0 x16 |
Critiques | — | 135 in our database |
Prédécesseur | — | Radeon R600 |
Successeur | — | Evergreen |