6
4
Select any two GPUs for comparison
VS

GD Star Rating
4

Gaming Performance Comparison

Recommended System Requirements
Game GeForce GTX 850M 2GB GeForce 840M 2GB
PlayerUnknowns Battlegrounds 223% 488%
Call of Duty: WWII 265% 565%
Assassins Creed: Origins 94% 253%
Star Wars: Battlefront 2 232% 506%
FIFA 18 84% 235%
Need For Speed Payback 245% 529%
Pro Evolution Soccer 2018 58% 188%
Fortnite 58% 188%
Wolfenstein II: The New Colossus 187% 424%
Destiny 2 223% 488%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce GTX 850M 2GB are significantly better than the Nvidia GeForce 840M 2GB.

The GeForce 840M 2GB has a 93 MHz higher core clock speed than the GTX 850M, but the GTX 850M has 16 more Texture Mapping Units than the GeForce 840M 2GB. As a result, the GTX 850M exhibits a 12.7 GTexel/s better Texture Fill Rate than the GeForce 840M 2GB. 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 2GB has a 93 MHz higher core clock speed than the GTX 850M, but the GTX 850M has 8 more Render Output Units than the GeForce 840M 2GB. As a result, the GTX 850M exhibits a 6.8 GPixel/s better Pixel Fill Rate than the GeForce 840M 2GB. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

Both the GeForce GTX 850M 2GB and the GeForce 840M 2GB were released at the same time, so are likely to be quite similar.

The GeForce GTX 850M 2GB and the GeForce 840M 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 850M has 16 GB/sec greater memory bandwidth than the GeForce 840M 2GB, which means that the memory performance of the GTX 850M is slightly better than the GeForce 840M 2GB.

The GeForce GTX 850M 2GB has 640 Shader Processing Units and the GeForce 840M 2GB has 384. However, the actual shader performance of the GTX 850M is 937 and the actual shader performance of the GeForce 840M 2GB is 583. The GTX 850M having 354 better shader performance and an altogether better performance when taking into account other relevant data means that the GTX 850M delivers a noticeably smoother and more efficient experience when processing graphical data than the GeForce 840M 2GB.

The GeForce GTX 850M 2GB requires 45 Watts to run and the GeForce 840M 2GB requires 33 Watts. The GTX 850M requires 12 Watts more than the GeForce 840M 2GB to run. The difference is not significant enough for the GTX 850M to have a noticeably larger impact on your yearly electricity bills than the GeForce 840M 2GB.

Can I Run It

information button related to GD Premium

Check any game system requirements

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GPU Architecture

Core Speed936 MHzvs1029 MHz
Boost Clock1084 MHzvs1124 MHz
ArchitectureMaxwell GM107Maxwell GM108
OC Potential Fair vs Poor
Driver Support Great vs Great
Release Date12 Mar 2014vs12 Mar 2014
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
9.7
green tick vs
7
1600x900
7.4
green tick vs
5.4
1920x1080
5.5
green tick vs
3.9
2560x1440
3.4
green tick vs
2.6
3840x2160
2.3
green tick vs
1.7

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1000 MHzvs1001 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth32GB/secvs16GB/sec
L2 Cache 2048 KB green tick vs 1024 KB
Delta Color Compression no vs no
Memory Performance 11% green tick vs 6%
Comparison

GPU Display

Shader Processing Units640vs384
Actual Shader Performance45%vs28%
Technology28nmvs28nm
Texture Mapping Units40vs24
Texture Rate37.4 GTexel/svs24.7 GTexel/s
Render Output Units16vs8
Pixel Rate15 GPixel/svs8.2 GPixel/s
Comparison

GPU Outputs

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

GPU Power Requirements

Max Power45 Wattsvs33 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-4600M 2-Core 2.9GHzvsIntel Core i3-4100M 2.5GHz
Recommended RAM8 GBvs4 GB
Maximum Recommended Gaming Resolution1600x900vs1366x768

Gaming Performance Value

Grand Theft Auto Vvs
Performance Value

GPU Mini Review

Mini ReviewPLEASE NOTE THAT THIS GRAPHICS CARD HAS 2 VARIANTS: DDR3 AND GDDR5. THIS IS THE DDR3 VARIANT.

GeForce GTX 850M 2GB is a fast-middle-class mobile graphics card. It is based on 28nm GM107 Core of the Maxwell architecture.

The Maxwell architecture features many improvements and amongst 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.
GeForce GTX 850M 2GB DDR3 comes with a full variant of the GM107 Core and thus offers 640 Shader Processing Units, 40 TMUs and 16 ROPs, on a 128-bit of standard DDR3. While the central unit runs at 936MHz and goes up to 1084MHz, in Turbo Mode, the memory clock operates at 1000MHz. It has a rated TDP board of around 45W.
The DDR3 variant is better suited for 720p but it comes higher clocked. Thus it proves to be way faster than GeForce GTX 750M and surpasses slightly the higher positioned GeForce GTX 760M. In fact, it should be pretty close to the desktop GeForce GTX 750.
This card should be paired with a Very Strong Dual Core Processor or a Decent Quad Core and at least 8GB of RAM.
Overview
GeForce 840M 2GB 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 2GB 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.

Features
DirectX 11.2 Support (11.0 Hardware Default) and support for GPU Boost 2.0, GeForce Experience, PhysX and other technologies.

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 2GB.
Recommended CPUIntel Core 2 Quad Q9100 2.26GHz
Intel Core i5-2557M 1.7GHz
APU A10-7350B Quad-Core
APU A8-7200P Quad-Core
AMD APU A10-4600M Quad-Core
Intel Core i5-4300U 1.9GHz
Intel Core i5-4350U 1.4GHz
Intel Core i5-2520M 2.5GHz
Intel Core i7-640M 2-Core 2.8GHz
Intel Core i5-2450M 2.5GHz
Possible GPU UpgradesN/AN/A
GPU Variants--