NVIDIA GeForce 840M, codenamed “N15S-GT”, is a mid-range graphics chip, announced in Q1 of 2014. It is part of the Maxwell generation and relies on a GM108 core, constructed through a 28nm process. It consists of three shader blocks, known as SMM, and each of those has 128 smaller shader cores, also known as CUDA, for a total of 384 CUDA cores. The package also includes 24 texture cores and 8 raster cores.
All of them operate at 1029MHz, but NVIDIA’s GPU Boost 2.0 can increase that frequency based on the laptop’s cooling capacity.
The chip also has a 64bit bus and DDR3 memory. NVIDIA GeForce 840M supports DirectX 11.2, Pixel Shader 5.0, Optimus, SLI, PhysX, OpenCL 1.1, OpenGL 4.4, DirectCompute and CUDA. Memory bandwidth goes up to 15.4GB/sec. Max resolutions (WxH) are 2560×1600 digital and 2048×1536 analog.
You can find all available laptops with GeForce 840M here:
http://amzn.to/2uQkrob
NVIDIA GeForce 840M (2GB DDR3) - specs
NVIDIA GeForce 840M (2GB DDR3) - benchmark tests
Results are from the 3DMark: Fire Strike (Graphics) benchmark (higher the score, the better)
Results are from the Unigine Heaven 3.0 benchmark (higher the score, the better)
Results are from the Unigine Heaven 4.0 benchmark (higher the score, the better)
Results are from the Unigine Superposition benchmark (higher the score, the better)
We’ve tested NVIDIA GeForce 840M (2GB DDR3) on…
| # | Laptop | 3DMark Fire Strike (G) | Unigine Heaven 3.0 | Unigine Heaven 4.0 | Unigine Superposition | Price |
|---|---|---|---|---|---|---|
| 1. | ASUS N56JN | 1636.00 | 470.00 | 0.00 | 0.00 | N/A |
| 2. | Acer Aspire E5-572G | 1608.00 | 438.00 | 0.00 | 0.00 | N/A |
| 3. | ASUS F555LN | 1576.00 | 440.00 | 320.00 | 0.00 | N/A |
| 4. | Dell Inspiron 17 (5749) | 827.00 | 433.00 | 340.00 | 0.00 | N/A |
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