GPU model | Whistler | GK208B |
---|---|---|
GPU variant | Whistler LE | — |
Architecture | TeraScale 2 | Kepler 2.0 |
Foundry | TSMC | TSMC |
Manufacturing process | 40 nm | 28 nm |
Number of transistors | 716 million | 1,020 million |
Die size | 104 mm² | 87 mm² |
Release date | Jan 7th, 2012 | — |
---|---|---|
Generation | London (HD 7600M) | — |
Production | End-of-life | — |
Interface | PCIe 2.0 x16 | — |
Predecessor | Vancouver | — |
Successor | Solar System | — |
GPU clock | 450 MHz | 797 MHz |
---|---|---|
Memory clock | 800 MHz 1600 Mbps effective | 900 MHz 1800 Mbps effective |
Memory size | 1024 MB | 1024 MB |
---|---|---|
Memory type | GDDR3 | DDR3 |
Memory bus width | 128 bit | 64 bit |
Bandwidth | 25.60 GB/s | 14.40 GB/s |
Shading units | 400 | 192 |
---|---|---|
TMUs | 20 | 16 |
ROPs | 8 | 8 |
Compute units | 5 | — |
Cache L1 | 8 KB (per CU) | 16 KB (per SMX) |
Cache L2 | 256 KB | 512 KB |
SMX count | — | 1 |
Pixel rate | 3.600 GPixel/s | 3.188 GPixel/s |
---|---|---|
Texture rate | 9.000 GTexel/s | 12.75 GTexel/s |
FP32 (float) performance | 360.0 GFLOPS | 306.0 GFLOPS |
FP64 (double) performance | — | 12.75 GFLOPS (1:24) |
TDP | 20 W | unknown |
---|---|---|
Outputs | No outputs | No outputs |
Slot width | — | Single-slot |
Suggested PSU | — | 200 W |
DirectX | 11.2 (11_0) | 12 (11_0) |
---|---|---|
OpenGL | 4.4 | 4.6 |
OpenCL | 1.2 | 3.0 |
Vulkan | — | 1.1 |
Shader model | 5.0 | 5.1 |
CUDA | — | 3.5 |
Release date | — | Apr 9th, 2015 |
---|---|---|
Generation | — | GeForce 700 |
Production | — | Active |
Interface | — | PCIe 2.0 x8 |
Predecessor | — | GeForce 600 |
Successor | — | GeForce 900 |