GPU model | Neptune | GK104 |
---|---|---|
GPU variant | Neptune XT (216-0847000) | N14E-GTX-A2 |
Architecture | GCN 1.0 | Kepler |
Foundry | TSMC | TSMC |
Manufacturing process | 28 nm | 28 nm |
Number of transistors | 2,800 million | 3,540 million |
Die size | 212 mm² | 294 mm² |
Release date | May 14th, 2013 | Nov 8th, 2013 |
---|---|---|
Generation | Solar System (HD 8900M) | GeForce 700M |
Production | End-of-life | End-of-life |
Interface | PCIe 3.0 x16 | MXM-B (3.0) |
Predecessor | London | GeForce 600M |
Successor | Crystal System | GeForce 800M |
Base clock | 850 MHz | 771 MHz |
---|---|---|
Boost clock | 900 MHz | 797 MHz |
Memory clock | 1200 MHz 4.8 Gbps effective | 1250 MHz 5 Gbps effective |
Memory size | 4 GB | 4 GB |
---|---|---|
Memory type | GDDR5 | GDDR5 |
Memory bus width | 256 bit | 256 bit |
Bandwidth | 153.6 GB/s | 160.0 GB/s |
Shading units | 1280 | 1536 |
---|---|---|
TMUs | 80 | 128 |
ROPs | 32 | 32 |
Compute units | 20 | — |
Cache L1 | 16 KB (per CU) | 16 KB (per SMX) |
Cache L2 | 512 KB | 512 KB |
SMX count | — | 8 |
Pixel rate | 28.80 GPixel/s | 25.50 GPixel/s |
---|---|---|
Texture rate | 72.00 GTexel/s | 102.0 GTexel/s |
FP32 (float) performance | 2.304 TFLOPS | 2.448 TFLOPS |
FP64 (double) performance | 144.0 GFLOPS (1:16) | 102.0 GFLOPS (1:24) |
Slot width | MXM Module | MXM Module |
---|---|---|
TDP | 100 W | 122 W |
Outputs | No outputs | No outputs |
DirectX | 12 (11_1) | 12 (11_0) |
---|---|---|
OpenGL | 4.6 | 4.6 |
OpenCL | 1.2 | 3.0 |
Vulkan | 1.2 | 1.1 |
Shader model | 5.1 | 5.1 |
CUDA | — | 3.0 |