Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce 840M 2GB GeForce GT 230M
Red Dead Redemption 2 529% 1797%
Cyberpunk 2077 765% 2506%
Doom Eternal 441% 1531%
Call of Duty: Modern Warfare 529% 1797%
Dragon Ball Z Kakarot 288% 1070%
Halo: Reach 100% 503%
Microsoft Flight Simulator 765% 2506%
Star Wars: Jedi - Fallen Order 765% 2506%
Grand Theft Auto VI 862% 2799%
Need For Speed Heat 529% 1797%

In terms of overall gaming performance, the graphical capabilities of the Nvidia GeForce 840M 2GB are massively better than the Nvidia GeForce GT 230M.

The GeForce 840M 2GB has a 529 MHz higher core clock speed and 8 more Texture Mapping Units than the GeForce GT 230M. This results in the GeForce 840M 2GB providing 16.7 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 529 MHz higher core clock speed than the GeForce GT 230M and the same number of Render Output Units. This results in the GeForce 840M 2GB providing 4.2 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 GeForce 840M 2GB was released over three years more recently than the GeForce GT 230M, and so the GeForce 840M 2GB is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the GeForce GT 230M when running the latest games.

The GeForce 840M 2GB has 1024 MB more video memory than the GeForce GT 230M, so is likely to be much better at displaying game textures at higher resolutions. However, the overall memory performance is about the same.

The GeForce GT 230M has 9.6 GB/sec greater memory bandwidth than the GeForce 840M 2GB, which means that the memory performance of the GeForce GT 230M is marginally better than the GeForce 840M 2GB.

The GeForce 840M 2GB has 384 Shader Processing Units and the GeForce GT 230M has 48. However, the actual shader performance of the GeForce 840M 2GB is 583 and the actual shader performance of the GeForce GT 230M is 53. The GeForce 840M 2GB having 530 better shader performance and an altogether better performance when taking into account other relevant data means that the GeForce 840M 2GB delivers a slightly smoother and more efficient experience when processing graphical data than the GeForce GT 230M.

The GeForce 840M 2GB transistor size technology is 12 nm (nanometers) smaller than the GeForce GT 230M. This means that the GeForce 840M 2GB is expected to run slightly cooler and achieve higher clock frequencies than the GeForce GT 230M.

The GeForce 840M 2GB requires 33 Watts to run and the GeForce GT 230M requires 23 Watts. The GeForce 840M 2GB requires 10 Watts more than the GeForce GT 230M 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 GeForce GT 230M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1029 MHzvs500 MHz
Boost Clock1124 MHzvs-
ArchitectureMaxwell GM108Tesla GT216-N10P-GE-A2
OC Potential Poor vs Fair
Driver Support Great vs Poor
Release Date12 Mar 2014vs15 Jun 2009
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7
green tick vs -
1600x900
5.4
green tick vs -
1920x1080
3.9
green tick vs -
2560x1440
2.6
green tick vs -
3840x2160
1.7
green tick vs -

GPU Memory

Memory2048 MBvs1024 MB
Memory Speed1001 MHzvs800 MHz
Memory Bus64 Bitvs128 Bit
Memory TypeDDR3vsGDDR3
Memory Bandwidth16GB/secvs25.6GB/sec
L2 Cache 1024 KB green tick vs 0 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs48
Actual Shader Performance28%vs3%
Technology28nmvs40nm
Texture Mapping Units24vs16
Texture Rate24.7 GTexel/svs8 GTexel/s
Render Output Units8vs8
Pixel Rate8.2 GPixel/svs4 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs1
DVI Connections0vs2
HDMI Connections0vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power33 Wattsvs23 Watts
Recommended PSU--

GPU Features

DirectX12.0vs10.1
Shader Model5.0vs4.0
Open GL4.5vs3.3
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfirenovsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i3-4100M 2.5GHzvsIntel Core 2 Duo T9300 2.50GHz
Recommended RAM4 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
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.
GeForce GT 230M is a middle-class level GFX of the 200M Series released by NVIDIA in 2009/2010. The biggest hindrance it has is the fact that it only supports DirectX up to 10.1 so DirectX 11 games aren't supported.
It's based on the architecture 'GT216', same used on the entry GeForce GT 220 part of the desktop 200 Series. The performance should be lower than the desktop GT 220, due to the lower clock frequencies.
Demanding games should run at low or medium settings, depending on the resolution + DirectX version used. Very demanding games like Metro 2033 might be unplayable even at the lowest settings or only playable at the lowest resolution, which is unbearable, even to the casual gamer. Even old demanding games like Call of Duty 4: Modern Warfare cannot be played at MAX settings smoothly.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-

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