Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce 840M 4GB GeForce GTX 950M 2GB
Cyberpunk 2077 565% 205%
Assassins Creed: Valhalla 508% 179%
Call of Duty: Black Ops Cold War 488% 170%
FIFA 21 235% 54%
Grand Theft Auto VI 835% 330%
Far Cry 6 862% 342%
Genshin Impact 565% 205%
Hitman 3 765% 297%
Watch Dogs Legion 541% 195%
World of Warcraft: Shadowlands 853% 338%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 950M 2GB are massively better than the Nvidia GeForce 840M 4GB.

The GeForce 840M 4GB has a 115 MHz higher core clock speed than the GTX 950M, but the GTX 950M has 16 more Texture Mapping Units than the GeForce 840M 4GB. As a result, the GTX 950M exhibits a 11.9 GTexel/s better Texture Fill Rate than the GeForce 840M 4GB. This still holds weight but shader performance is generally more relevant, particularly since both of these GPUs support at least DirectX 10.

The GeForce 840M 4GB has a 115 MHz higher core clock speed than the GTX 950M, but the GTX 950M has 8 more Render Output Units than the GeForce 840M 4GB. As a result, the GTX 950M exhibits a 6.4 GPixel/s better Pixel Fill Rate than the GeForce 840M 4GB. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The GTX 950M was released less than a year after the GeForce 840M 4GB, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The GeForce 840M 4GB and the GeForce GTX 950M 2GB have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The GTX 950M has 64 GB/sec greater memory bandwidth than the GeForce 840M 4GB, which means that the memory performance of the GTX 950M is much better than the GeForce 840M 4GB.

The GeForce 840M 4GB has 384 Shader Processing Units and the GeForce GTX 950M 2GB has 640. However, the actual shader performance of the GeForce 840M 4GB is 583 and the actual shader performance of the GTX 950M is 858. The GTX 950M having 275 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 950M delivers a massively smoother and more efficient experience when processing graphical data than the GeForce 840M 4GB.

The GeForce 840M 4GB requires 33 Watts to run and the GeForce GTX 950M 2GB requires 50 Watts. The GTX 950M requires 17 Watts more than the GeForce 840M 4GB to run. The difference is not significant enough for the GTX 950M to have a noticeably larger impact on your yearly electricity bills than the GeForce 840M 4GB.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1029 MHzvs914 MHz
Boost Clock1124 MHzvs993 MHz
ArchitectureMaxwell GM108Maxwell GM107-N16P-GT
OC Potential Poor vs Good
Driver Support Great vs Great
Release Date12 Mar 2014vs12 Mar 2015
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7
vs green tick
9.9
1600x900
5.4
vs green tick
7.8
1920x1080
3.9
vs green tick
6
2560x1440
2.6
vs green tick
4.3
3840x2160
1.7
vs green tick
2.6

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1001 MHzvs1250 MHz
Memory Bus64 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth16GB/secvs80GB/sec
L2 Cache 1024 KB vs green tick 2048 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs640
Actual Shader Performance28%vs41%
Technology28nmvs28nm
Texture Mapping Units24vs40
Texture Rate24.7 GTexel/svs36.6 GTexel/s
Render Output Units8vs16
Pixel Rate8.2 GPixel/svs14.6 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power33 Wattsvs50 Watts
Recommended PSU--

GPU Features

DirectX12.0vs12.0
Shader Model5.0vs5.0
Open GL4.5vs4.5
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfirenovsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-4100M 2.5GHzvsIntel Core i5-4340M 2.9GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1920x1080

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
GeForce 840M 4GB is a Middle-Class Mobile Graphics Card based on the First Revision of the Maxwell architecture.

Architecture
The Maxwell architecture features many improvements and among them is the extremely large L2 Cache which allows NVIDIA to produce Graphics Cards with relatively small memory data transfer rates, without causing too much impact on the overall performance. Furthermore, the Shaders have been redesigned and are both more powerful and energy efficient.

GPU
It equips a GPU codenamed GM108 which has 3 SM activated and thus offers 384 Shader Processing Units, 24 TMUs and 8 ROPs. The central unit runs at 1029MHz and goes up to 1124MHz, in Turbo Mode.

Memory
The GPU accesses a 4GB frame buffer of DDR3, through a 64-bit memory interface. The Frame Buffer is exaggerated and in no way benefits the GPU. The memory clock operates at 1001MHz.

Power Consumption
With a rated board TDP of 33W, it will only be equipped in average sized notebooks.

Performance
Benchmarks indicate its performance is over 20% faster than the older GeForce GT 740M. Therefore, it should match GeForce GT 750M.

System Suggestions
We recommend a modest processor (Intel Core i5 Mobile) and 4GB of RAM for a notebook with GeForce 840M 4GB.
Overview
GeForce GTX 950M 2GB is a Performance Mobile Graphics Card based on the first variant of the Maxwell architecture.

Architecture
The first variant of the Maxwell Architecture succeeds the Kepler Architecture. Despite being also manufactured with a 28nm technology, it has an extremely large L2 Cache which allows NVIDIA to produce Graphics Cards with relatively small memory data transfer rates, without causing too much impact on the overall performance. Furthermore, the Shaders have been redesigned and are both more powerful and energy efficient.

GPU
It equips a GPU codenamed GM107-N16P-GT which has 5 SM activated and thus offers 640 Shader Processing Units, 40 TMUs and 16 ROPs. The central unit runs at 914MHz and goes up to 993MHz, in Turbo Mode.

Memory
The GPU accesses a 2GB frame buffer of fast GDDR5, through a 128-bit memory interface. The memory clock operates at 1253MHz. The size of the frame buffer is adequate.

Features
DirectX 12 Support (11.0 Hardware Default) and support for GameStream, G-SYNC, GPU Boost 2.0, GeForce Experience, PhysX and other technologies.

Power Consumption
With a rated board TDP of 50W, it may be equipped in average sized notebooks.

Performance
Because GeForce GTX 950M 2GB is just a higher clocked GeForce GTX 850M v2 2GB, its performance is only about 5% faster than its predecessors and so GeForce GTX 860M 2GB is still faster.
Still, it still offers decent gaming at 1920x1080 and most modern games should run fluently at high settings.

System Suggestions
We recommend a strong processor (Intel Core i5 Mobile) and 8GB of RAM for a notebook with GeForce GTX 950M 2GB.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-