NVIDIA · 2014
NVIDIA GeForce 840M
The NVIDIA GeForce 840M is a mobile graphics card released in 2014, based on the Maxwell architecture.
The NVIDIA GeForce 840M is a mobile graphics card released on March 12, 2014. It is built on the Maxwell architecture with the GM108 GPU chip on a 28 nm process. The card features 384 shading units, a base and boost clock of 1029 MHz, and 2 GB of DDR3 memory on a 64-bit bus, providing a memory bandwidth of 16 GB/s. It has a TDP of 30 W and connects via PCIe 3.0 x16. The card supports DirectX 12, Vulkan 1.3, and OpenGL 4.5. It is typically used in laptops and is noted to perform at 50–80% of the GeForce 745 (Maxwell).
Benchmarks
| PassMark G3D Mark | 1,067 |
|---|---|
| PassMark G2D Mark | 147 |
| Geekbench 5 CUDA | 5,629 |
| Geekbench 5 OpenCL | 5,938 |
| Geekbench 5 Vulkan | 5,207 |
| Blender Open Data score | 43.54 samples/min |
| Nero Score AVC encode | 990 fps |
Specifications
| Architecture unverified | Maxwell |
|---|---|
| GPU chip unverified | GM108 |
| Process node unverified | 28 nm |
| Shading units unverified | 384 |
| Base clock unverified | 1029 MHz |
| Boost clock unverified | 1029 MHz |
| Memory size unverified | 2 GB |
| Memory type unverified | DDR3 |
| Memory bus unverified | 64 bit |
| Memory bandwidth unverified | 16 GB/s |
| Board power (TDP) unverified | 30 W |
| Bus interface unverified | PCIe 3.0 x16 |
| DirectX support unverified | 12 |
| Vulkan support unverified | 1.3 |
| OpenGL support unverified | 4.5 |
| Release date unverified | 2014-03-12 |
| Release year unverified | 2014 |
| Notes unverified | 50–80% of 745 (Maxwell) |