NVIDIA GeForce GTX 850A vs NVIDIA Quadro K1100M
Graphics Processor
| GPU model | GM107 | GK107 |
|---|---|---|
| GPU variant | N15P-GT-A1 | — |
| Architecture | Maxwell | Kepler |
| Foundry | TSMC | TSMC |
| Manufacturing process | 28 nm | 28 nm |
| Number of transistors | 1,870 million | 1,270 million |
| Die size | 148 mm² | 118 mm² |
Mobile graphics
| Release date | Mar 17th, 2014 | Jul 23rd, 2013 |
|---|---|---|
| Generation | GeForce 800A | Quadro Mobile (Kx100M) |
| Production | End-of-life | End-of-life |
| Interface | PCIe 3.0 x16 | MXM-A (3.0) |
| Predecessor | GeForce 700A | — |
| Successor | GeForce 900A | — |
| Reviews | — | 26 in our database |
Clocks
| Base clock | 902 MHz | — |
|---|---|---|
| Boost clock | 936 MHz | — |
| Memory clock | 900 MHz 1800 Mbps effective | 700 MHz 2.8 Gbps effective |
| GPU clock | — | 706 MHz |
Memory Configuration
| Memory size | 2 GB | 2 GB |
|---|---|---|
| Memory type | DDR3 | GDDR5 |
| Memory bus width | 128 bit | 128 bit |
| Bandwidth | 28.80 GB/s | 44.80 GB/s |
Render Configuration
| Shading units | 640 | 384 |
|---|---|---|
| TMUs | 40 | 32 |
| ROPs | 16 | 16 |
| SMM count | 5 | — |
| Cache L1 | 64 KB (per SMM) | 16 KB (per SMX) |
| Cache L2 | 2 MB | 256 KB |
| SMX count | — | 2 |
Performance
| Pixel rate | 14.98 GPixel/s | 5.648 GPixel/s |
|---|---|---|
| Texture rate | 37.44 GTexel/s | 22.59 GTexel/s |
| FP32 (float) performance | 1,198 GFLOPS | 542.2 GFLOPS |
| FP64 (double) performance | 37.44 GFLOPS (1:32) | 22.59 GFLOPS (1:24) |
Dimensions & Outputs
| Slot width | IGP | MXM Module |
|---|---|---|
| TDP | 45 W | 45 W |
| Outputs | No outputs | No outputs |
API Support & Features
| DirectX | 12 (11_0) | 12 (11_0) |
|---|---|---|
| OpenGL | 4.6 | 4.6 |
| OpenCL | 3.0 | 3.0 |
| Vulkan | 1.1 | 1.1 |
| CUDA | 5.0 | 3.0 |
| Shader model | 5.1 | 5.1 |
