GPU model | RV770 | GF108 |
---|---|---|
GPU variant | RV770 CE (215-0669093) | GF108-400-A1 |
Architecture | TeraScale | Fermi |
Foundry | TSMC | TSMC |
Manufacturing process | 55 nm | 40 nm |
Number of transistors | 956 million | 585 million |
Die size | 256 mm² | 116 mm² |
Release date | May 28th, 2009 | Feb 1st, 2011 |
---|---|---|
Generation | Radeon R700 | GeForce 400 |
Production | End-of-life | End-of-life |
Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
Predecessor | Radeon R600 | GeForce 200 |
Successor | Evergreen | GeForce 500 |
Launch price | — | 79 USD |
Reviews | — | 5 in our database |
GPU clock | 625 MHz | 810 MHz |
---|---|---|
Memory clock | 900 MHz 3.6 Gbps effective | 900 MHz 1800 Mbps effective |
Shader clock | — | 1620 MHz |
Memory size | 512 MB | 1024 MB |
---|---|---|
Memory type | GDDR5 | DDR3 |
Memory bus width | 128 bit | 128 bit |
Bandwidth | 57.60 GB/s | 28.80 GB/s |
Shading units | 640 | 96 |
---|---|---|
TMUs | 32 | 16 |
ROPs | 8 | 4 |
Compute units | 8 | — |
Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
Cache L2 | 128 KB | 256 KB |
SM count | — | 2 |
Pixel rate | 5.000 GPixel/s | 3.240 GPixel/s |
---|---|---|
Texture rate | 20.00 GTexel/s | 12.96 GTexel/s |
FP32 (float) performance | 800.0 GFLOPS | 311.0 GFLOPS |
FP64 (double) performance | 160.0 GFLOPS (1:5) | 25.92 GFLOPS (1:12) |
Slot width | Single-slot | Single-slot |
---|---|---|
Length | 246 mm 9.7 inches | 145 mm 5.7 inches |
TDP | 95 W | 65 W |
Suggested PSU | 250 W | 250 W |
Outputs | 2x DVI1x S-Video | 1x DVI1x HDMI1x VGA |
Power connectors | 1x 6-pin | None |
Board number | B507 | P1071 |
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 |