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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 M265X GeForce 840M 2GB
Cyberpunk 2077 522% 559%
Assassins Creed: Valhalla 474% 508%
Watch Dogs Legion 506% 541%
Genshin Impact 528% 565%
FIFA 21 217% 235%
Call of Duty: Black Ops Cold War 539% 576%
eFootball PES 2021 217% 235%
Microsoft Flight Simulator 456% 488%
Marvel's Avengers 494% 529%
Mafia: Definitive Edition 800% 853%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 M265X are very slightly better than the Nvidia GeForce 840M 2GB.

The GeForce 840M 2GB has a 454 MHz higher core clock speed but 16 fewer Texture Mapping Units than the Radeon R9 M265X. The lower TMU count doesn't matter, though, as altogether the GeForce 840M 2GB manages to provide 1.7 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 454 MHz higher core clock speed than the Radeon R9 M265X, but the Radeon R9 M265X has 8 more Render Output Units than the GeForce 840M 2GB. As a result, the Radeon R9 M265X exhibits a 1 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 less than a year after the Radeon R9 M265X, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The Radeon R9 M265X 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 Radeon R9 M265X has 48 GB/sec greater memory bandwidth than the GeForce 840M 2GB, which means that the memory performance of the Radeon R9 M265X is noticeably better than the GeForce 840M 2GB.

Both the Radeon R9 M265X and the GeForce 840M 2GB have 384 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the GeForce 840M 2GB is 583 and by the Radeon R9 M265X is 583. Knowing that the shader performance of the GeForce 840M 2GB is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.

The Radeon R9 M265X requires 35 Watts to run and the GeForce 840M 2GB requires 33 Watts. The Radeon R9 M265X requires 2 Watts more than the GeForce 840M 2GB to run. The difference is not significant enough for the Radeon R9 M265X to have a noticeably larger impact on your yearly electricity bills than the GeForce 840M 2GB.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed575 MHzvs1029 MHz
Boost Clock625 MHzvs1124 MHz
ArchitectureGCN 1.1 Venus PROMaxwell GM108
OC Potential Fair vs Poor
Driver Support - vs Great
Release Date09 Jan 2014vs12 Mar 2014
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7.5
green tick vs
7
1600x900
5.6
green tick vs
5.4
1920x1080
4.1
green tick vs
3.9
2560x1440
2.9
green tick vs
2.6
3840x2160
1.8
green tick vs
1.7

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1000 MHzvs1001 MHz
Memory Bus128 Bitvs64 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth64GB/secvs16GB/sec
L2 Cache 256 KB vs green tick 1024 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units384vs384
Actual Shader Performance12%vs28%
Technology28nmvs28nm
Texture Mapping Units40vs24
Texture Rate23 GTexel/svs24.7 GTexel/s
Render Output Units16vs8
Pixel Rate9.2 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 Power35 Wattsvs33 Watts
Recommended PSU--

GPU Features

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

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-4200M 2.5GHzvsIntel Core i3-4100M 2.5GHz
Recommended RAM8 GBvs4 GB
Maximum Recommended Gaming Resolution1600x900vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon R9 M265X is a middle-class Mobile Graphics Card based on the first revision of the Graphics Core Next Architecture.

GPU
It equips a GPU codenamed Venus PRO which has 5 SM activated and thus offers 640 Shader Processing Units, 40 TMUs and 16 ROPs, on a 192-bit memory interface of fast GDDR5. The central unit runs at 575MHz and goes up to 625MHz, in Turbo Mode, while the memory clock operates at 1000MHz.

Features
DirectX 11.2 Support (11.0 Hardware Default) and support for Crossfire, PowerPlay, PowerTune, Mantle, Enduro and other technologies.

Temperature
N/A.

Power Consumption
With a rated board TDP of 35W, it will only be equipped in medium sized notebooks.

Performance
Its performance is almost identical to Radeon HD 8850M and therefore lies between GeForce GT 750M and GeForce GT 755M. Thus, the card is not suited for 1080p but will handle 720p with ease.

System Suggestions
We recommend strong Dual Core Processor (Intel Core i5 Mobile Quad Core) and 8GB of RAM for a notebook with Radeon R9 M265X.
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
-
-