GPU model | Whistler | GF108 |
---|---|---|
GPU variant | Whistler LP | GF108-400-A1 |
Architecture | TeraScale 2 | Fermi |
Foundry | TSMC | TSMC |
Manufacturing process | 40 nm | 40 nm |
Number of transistors | 716 million | 585 million |
Die size | 104 mm² | 116 mm² |
Release date | Jan 4th, 2011 | — |
---|---|---|
Generation | Vancouver (HD 6600M) | — |
Production | End-of-life | — |
Interface | PCIe 2.0 x16 | — |
Predecessor | Manhattan | — |
Successor | London | — |
GPU clock | 500 MHz | 810 MHz |
---|---|---|
Memory clock | 800 MHz 1600 Mbps effective | 900 MHz 1800 Mbps effective |
Shader clock | — | 1620 MHz |
Memory size | 1024 MB | 1024 MB |
---|---|---|
Memory type | DDR3 | DDR3 |
Memory bus width | 128 bit | 128 bit |
Bandwidth | 25.60 GB/s | 28.80 GB/s |
Shading units | 480 | 96 |
---|---|---|
TMUs | 24 | 16 |
ROPs | 8 | 4 |
Compute units | 6 | — |
Cache L1 | 8 KB (per CU) | 64 KB (per SM) |
Cache L2 | 256 KB | 256 KB |
SM count | — | 2 |
Pixel rate | 4.000 GPixel/s | 3.240 GPixel/s |
---|---|---|
Texture rate | 12.00 GTexel/s | 12.96 GTexel/s |
FP32 (float) performance | 480.0 GFLOPS | 311.0 GFLOPS |
FP64 (double) performance | — | 25.92 GFLOPS (1:12) |
TDP | 26 W | 65 W |
---|---|---|
Outputs | No outputs | 1x DVI1x HDMI1x VGA |
Slot width | — | Single-slot |
Length | — | 145 mm 5.7 inches |
Suggested PSU | — | 250 W |
Power connectors | — | None |
Board number | — | P1071 |
DirectX | 11.2 (11_0) | 12 (11_0) |
---|---|---|
OpenGL | 4.4 | 4.6 |
OpenCL | 1.2 | 1.1 |
Vulkan | — | — |
Shader model | 5.0 | 5.1 |
CUDA | — | 2.1 |
Release date | — | May 15th, 2012 |
---|---|---|
Generation | — | GeForce 600 |
Production | — | End-of-life |
Interface | — | PCIe 2.0 x16 |
Predecessor | — | GeForce 500 |
Successor | — | GeForce 700 |