Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Intel HD Graphics Mobile (Braswell) GeForce 840M 2GB
Cyberpunk 2077 2140% 559%
Watch Dogs Legion 2080% 541%
Assassins Creed: Valhalla 1967% 508%
Call of Duty: Black Ops Cold War 1900% 488%
FIFA 21 1040% 235%
Genshin Impact 2160% 565%
Microsoft Flight Simulator 1900% 488%
eFootball PES 2021 1040% 235%
Ghostrunner 1900% 488%
Horizon: Zero Dawn 2040% 529%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 840M 2GB are massively better than the Intel HD Graphics Mobile (Braswell).

The GeForce 840M 2GB has a 709 MHz higher core clock speed and 20 more Texture Mapping Units than the Graphics Mobile. This results in the GeForce 840M 2GB providing 23.4 GTexel/s better texturing performance. 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 709 MHz higher core clock speed and 7 more Render Output Units than the Graphics Mobile. This results in the GeForce 840M 2GB providing 7.9 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Graphics Mobile was released over a year more recently than the GeForce 840M 2GB, and so the Graphics Mobile is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the GeForce 840M 2GB.

The GeForce 840M 2GB has 2048 MB video memory, but the Graphics Mobile does not have an entry, so the two GPUs cannot be reliably compared in this area.

The HD Graphics Mobile (Braswell) has 16 Shader Processing Units and the GeForce 840M 2GB has 384. However, the actual shader performance of the Graphics Mobile is 90 and the actual shader performance of the GeForce 840M 2GB is 583. The GeForce 840M 2GB having 493 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce 840M 2GB delivers a noticeably smoother and more efficient experience when processing graphical data than the Graphics Mobile.

The Graphics Mobile transistor size technology is 14 nm (nanometers) smaller than the GeForce 840M 2GB. This means that the Graphics Mobile is expected to run slightly cooler and achieve higher clock frequencies than the GeForce 840M 2GB.

The HD Graphics Mobile (Braswell) requires 6 Watts to run and the GeForce 840M 2GB requires 33 Watts. The GeForce 840M 2GB requires 27 Watts more than the Graphics Mobile to run. The difference is not significant enough for the GeForce 840M 2GB to have a noticeably larger impact on your yearly electricity bills than the Graphics Mobile.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed320 MHzvs1029 MHz
Boost Clock700 MHzvs1124 MHz
ArchitectureBraswell GT1Maxwell GM108
OC Potential None vs Poor
Driver Support Great vs Great
Release Date01 Apr 2015vs12 Mar 2014
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
4.1
vs green tick
7
1600x900
2.7
vs green tick
5.4
1920x1080
1.8
vs green tick
3.9
2560x1440
1.3
vs green tick
2.6
3840x2160
0.8
vs green tick
1.7

GPU Memory

MemoryN/Avs2048 MB
Memory Speed800 MHzvs1001 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth25.6GB/secvs16GB/sec
L2 Cache 2048 KB green tick vs 1024 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units16vs384
Actual Shader Performance4%vs28%
Technology14nmvs28nm
Texture Mapping Units4vs24
Texture Rate1.3 GTexel/svs24.7 GTexel/s
Render Output Units1vs8
Pixel Rate0.3 GPixel/svs8.2 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2304vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections0vs-
Comparison

GPU Power Requirements

Max Power6 Wattsvs33 Watts
Recommended PSU--

GPU Features

DirectX11.2vs12.0
Shader Model5.0vs5.0
Open GL4.3vs4.5
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfirenovsno
Dedicatednovsyes
Comparison

GPU Supporting Hardware

Recommended Processor-Intel Core i3-4100M 2.5GHz
Recommended RAM4 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Intel HD Graphics Mobile (Braswell) are Integrated Graphics in some of Intel's SoC Braswell Processors.

Architecture
The Braswell Core includes support for DirectX 11.2, OpenCL 2.0 and OpenGL 4.3. Additionally, it also offers better Decoding Performance, when compared to its Predecessors.
The GPU Codenamed GT1 offers 16 Shader Processing Units, 4 TMUs and 1 ROP.

GPU
The Central Unit Initially Runs at 320MHz and goes up to 720MHz, in Turbo Mode.

Memory
The Operating Memory Clock depends at which speed the System's RAM is running and which Memory Type is installed and is ultimately limited by the highest operating speed that the Processor supports. In this case, it is 800MHz.
Depending on whether or not the System's RAM is Dual-Channeled, it can access either a 64-bit or 128-bit Memory Interface.

Memory: Frame Buffer
The GPU Shares the System's RAM which varies according to the System. The GPU may reserve up to ??GB.

Performance
Because Performance depends heavily on the Memory Bandwidth, it may vary heavily from System to System.
Best Case Scenario, expect Performance Identical to a dedicated GeForce GT 520M.

System Suggestions
Intel HD Graphics Mobile (Braswell) is best suited for resolutions up to and including 1366x768. We recommend 4GB of RAM for Optimal Performance.
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 CPU
-
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-