GPU model | RV770 | GF106 |
---|---|---|
GPU variant | RV770 XT | GF106-250-KB-A1 |
Architecture | TeraScale | Fermi |
Foundry | TSMC | TSMC |
Manufacturing process | 55 nm | 40 nm |
Number of transistors | 956 million | 1,170 million |
Die size | 256 mm² | 238 mm² |
Release date | Nov 13th, 2008 | Oct 11th, 2010 |
---|---|---|
Generation | FireStream | GeForce 400 |
Production | End-of-life | End-of-life |
Interface | PCIe 2.0 x16 | PCIe 2.0 x16 |
Reviews | — | 80 in our database |
Predecessor | — | GeForce 200 |
Successor | — | GeForce 500 |
GPU clock | 750 MHz | 790 MHz |
---|---|---|
Memory clock | 900 MHz 3.6 Gbps effective | 1000 MHz 4 Gbps effective |
Shader clock | — | 1580 MHz |
Memory size | 2 GB | 1536 MB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 256 bit | 192 bit |
Bandwidth | 115.2 GB/s | 96.00 GB/s |
Shading units | 800 | 144 |
---|---|---|
TMUs | 40 | 24 |
ROPs | 16 | 24 |
Compute units | 10 | — |
Cache L1 | 16 KB (per CU) | 64 KB (per SM) |
Cache L2 | 256 KB | 384 KB |
SM count | — | 3 |
Pixel rate | 12.00 GPixel/s | 4.740 GPixel/s |
---|---|---|
Texture rate | 30.00 GTexel/s | 18.96 GTexel/s |
FP32 (float) performance | 1,200 GFLOPS | 455.0 GFLOPS |
FP64 (double) performance | 240.0 GFLOPS (1:5) | 37.92 GFLOPS (1:12) |
Slot width | Dual-slot | Dual-slot |
---|---|---|
Length | 241 mm 9.5 inches | 210 mm 8.3 inches |
Width | 111 mm 4.4 inches | — |
Height | 38 mm 1.5 inches | — |
TDP | 160 W | 106 W |
Suggested PSU | 450 W | 300 W |
Outputs | 1x DVI | 2x DVI1x mini-HDMI |
Power connectors | 2x 6-pin | 1x 6-pin |
Board number | — | P1060 |
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 |