Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game GeForce 840M 2GB GeForce GTX 460M
Red Dead Redemption 2 529% 529%
Doom Eternal 441% 441%
Cyberpunk 2077 765% 765%
Call of Duty: Modern Warfare 529% 529%
Dragon Ball Z Kakarot 288% 288%
Microsoft Flight Simulator 765% 765%
Star Wars: Jedi - Fallen Order 765% 765%
Grand Theft Auto VI 862% 862%
Need For Speed Heat 529% 529%
Warcraft 3: Reforged 76% 76%

In terms of overall gaming performance, the graphical capabilities of the GeForce 840M 2GB and the GeForce GTX 460M are equal.

The GeForce 840M 2GB has a 354 MHz higher core clock speed but 8 fewer Texture Mapping Units than the GeForce GTX 460M. The lower TMU count doesn't matter, though, as altogether the GeForce 840M 2GB manages to provide 3.1 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 354 MHz higher core clock speed than the GeForce GTX 460M, but the GeForce GTX 460M has 16 more Render Output Units than the GeForce 840M 2GB. As a result, the GeForce GTX 460M exhibits a 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.

The GeForce 840M 2GB was released over three years more recently than the GeForce GTX 460M, 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 GTX 460M when running the latest games.

The GeForce 840M 2GB has 512 MB more video memory than the GeForce GTX 460M, so is likely to be much better at displaying game textures at higher resolutions. However, overall, the GeForce GTX 460M has superior memory performance.

The GeForce GTX 460M has 44 GB/sec greater memory bandwidth than the GeForce 840M 2GB, which means that the memory performance of the GeForce GTX 460M is noticeably better than the GeForce 840M 2GB.

The GeForce 840M 2GB has 384 Shader Processing Units and the GeForce GTX 460M has 192. However, the actual shader performance of the GeForce 840M 2GB is 583 and the actual shader performance of the GeForce GTX 460M is 259. The GeForce 840M 2GB having 324 better shader performance is not particularly notable, as altogether the GeForce GTX 460M performs better when taking into account other relevant data.

The GeForce 840M 2GB transistor size technology is 12 nm (nanometers) smaller than the GeForce GTX 460M. This means that the GeForce 840M 2GB is expected to run slightly cooler and achieve higher clock frequencies than the GeForce GTX 460M. While they exhibit similar graphical performance, the GeForce 840M 2GB should consume less power than the GeForce GTX 460M.

The GeForce 840M 2GB requires 33 Watts to run and the GeForce GTX 460M requires 50 Watts. The GeForce GTX 460M requires 17 Watts more than the GeForce 840M 2GB to run. The difference is not significant enough for the GeForce GTX 460M to have a noticeably larger impact on your yearly electricity bills than the GeForce 840M 2GB.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1029 MHzvs675 MHz
Boost Clock1124 MHzvs-
ArchitectureMaxwell GM108Fermi GF106-N11E-GS-A1
OC Potential Poor vs Fair
Driver Support Great vs Poor
Release Date12 Mar 2014vs03 Sep 2010
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7
green tick vs green tick
7
1600x900
5.4
green tick vs green tick
5.4
1920x1080
3.9
green tick vs green tick
3.9
2560x1440
2.6
green tick vs
2.5
3840x2160
1.7
green tick vs -

GPU Memory

Memory2048 MBvs1536 MB
Memory Speed1001 MHzvs625 MHz
Memory Bus64 Bitvs192 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth16GB/secvs60GB/sec
L2 Cache 1024 KB green tick vs 384 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs192
Actual Shader Performance28%vs12%
Technology28nmvs40nm
Texture Mapping Units24vs32
Texture Rate24.7 GTexel/svs21.6 GTexel/s
Render Output Units8vs24
Pixel Rate8.2 GPixel/svs16.2 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections0vs1
HDMI Connections0vs1
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 i5-520M 2.4GHz
Recommended RAM4 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1600x900

Gaming Performance Value

The Elder Scrolls Vvs
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.
Overview
GeForce GTX 460M is a Performance Mobile Graphics Card based on the first revision of the Fermi Architecture.

Architecture
The Fermi Architecture is manufactured with a 40nm technology and uses a technique known as Hot Clocking: The Shaders are clocked twice as fast as the Central Unit. While this leads to a reasonable performance boost, it causes enormous amounts of energy dissipation, leading, ultimately, to a significantly higher operating temperature.
Fermi is also the first GPU architecture with fully cached memory access which increases memory performance.

GPU
It equips a GPU Codenamed GF106-N11E-GE-A1 which has 4 Stream Multiprocessors activated and thus offers 192 Shader Processing Units, 32 TMUs and 24 ROPs. The Central Unit is clocked at 675MHz.

Memory
The GPU accesses a 1GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is adequate. The Memory Clock Operates at 625MHz.

Features
DirectX 11.0 Support (11.0 Hardware Default) and support for Optimus, 3D Vision Surround, PhysX, Realtime Raytracing and other technologies

Power Consumption
With a rated board TDP of 50W, it is suited for average sized laptops.

Performance
Gaming benchmarks put its performance almost on level with the desktop GeForce GT 450 v2.

System Suggestions
We recommend a decent processor (Intel Core i5 Mobile) and 8GB of RAM for a system with GeForce GTX 460M.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-

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