Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 8850M GeForce 840M 2GB
Red Dead Redemption 2 494% 529%
Halo: Reach 89% 100%
Cyberpunk 2077 717% 765%
Call of Duty: Modern Warfare 494% 529%
Doom Eternal 411% 441%
Microsoft Flight Simulator 717% 765%
Grand Theft Auto VI 808% 862%
Dragon Ball Z Kakarot 267% 288%
Star Wars: Jedi - Fallen Order 717% 765%
Need For Speed Heat 494% 529%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8850M are very slightly better than the Nvidia GeForce 840M 2GB.

The GeForce 840M 2GB has a 404 MHz higher core clock speed than the Radeon HD 8850M, but the Radeon HD 8850M has 16 more Texture Mapping Units than the GeForce 840M 2GB. As a result, the Radeon HD 8850M exhibits a 0.3 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 404 MHz higher core clock speed than the Radeon HD 8850M, but the Radeon HD 8850M has 8 more Render Output Units than the GeForce 840M 2GB. As a result, the Radeon HD 8850M exhibits a 1.8 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 less than a year after the Radeon HD 8850M, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The Radeon HD 8850M 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 HD 8850M has 16 GB/sec greater memory bandwidth than the GeForce 840M 2GB, which means that the memory performance of the Radeon HD 8850M is slightly better than the GeForce 840M 2GB.

The Radeon HD 8850M has 640 Shader Processing Units and the GeForce 840M 2GB has 384. However, the actual shader performance of the Radeon HD 8850M is 496 and the actual shader performance of the GeForce 840M 2GB is 583. The GeForce 840M 2GB having 87 better shader performance is not particularly notable, as altogether the Radeon HD 8850M performs better when taking into account other relevant data.

The Radeon HD 8850M requires 45 Watts to run and the GeForce 840M 2GB requires 33 Watts. The Radeon HD 8850M requires 12 Watts more than the GeForce 840M 2GB to run. The difference is not significant enough for the Radeon HD 8850M to have a noticeably larger impact on your yearly electricity bills than the GeForce 840M 2GB.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed625 MHzvs1029 MHz
Boost Clock775 MHzvs1124 MHz
ArchitectureGCN 1.1 Venus PROMaxwell GM108
OC Potential Fair vs Poor
Driver Support - vs Great
Release Date01 Apr 2013vs12 Mar 2014
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7.2
green tick vs
7
1600x900
5.5
green tick vs
5.4
1920x1080
4.1
green tick vs
3.9
2560x1440
2.6
green tick vs green tick
2.6
3840x2160
1.8
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 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 Units640vs384
Actual Shader Performance24%vs28%
Technology28nmvs28nm
Texture Mapping Units40vs24
Texture Rate25 GTexel/svs24.7 GTexel/s
Render Output Units16vs8
Pixel Rate10 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

DirectX11.1vs12.0
Shader Model5.0vs5.0
Open GL4.2vs4.5
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfireyesvsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3360M 2.8GHzvsIntel Core i3-4100M 2.5GHz
Recommended RAM8 GBvs4 GB
Maximum Recommended Gaming Resolution1366x768vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 8850M is a Performance Mobile Graphics Card based on the Second Revision of the GCN Architecture.

Architecture
The GCN 1.1 Release adds support for AMD's TrueAudio Technology which does calculations of audio effects "better" than the CPU and further improves the Powertune Technology.

GPU
It equips a GPU codenamed Venus PRO which has 10 Compute Units activated and thus offers 640 Shader Processing Units, 40 TMUs and 16 ROPs. The Central Unit Initially Operates at 625MHz and goes up to 775MHz, in Turbo Mode.

Memory
The GPU accesses a 2GB frame buffer of DDR3, through a 128-bit memory interface. The size of the frame buffer is exaggerated and in no way benefits the GPU. The memory clock operates at 1000MHz.

Features
DirectX 11.0 Support (11.0 Hardware Default) and support for Crossfire, PowerTune Technology, Eyefinity, App Acceleration, HD3D, ZeroCore Power and other technologies.

Power Consumption
With a rated board TDP of 45W, it is suited for 17" or larger laptops.

Performance
Gaming benchmarks put its performance somewhat above NVIDIA's GeForce GT 750M.

System Suggestions
We recommend a Decent Processor (Intel Core i5 Mobile) and 8GB of RAM for a system with Radeon HD 8850M.
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
-
-

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