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Gaming Performance Comparison

Recommended System Requirements
Game Radeon R9 M485X 4GB Radeon HD 8850M
Cyberpunk 2077 85% 528%
Assassins Creed: Valhalla 69% 474%
Call of Duty: Black Ops Cold War 64% 456%
Grand Theft Auto VI 161% 783%
FIFA 21 7% 217%
Genshin Impact 85% 528%
Far Cry 6 168% 808%
Hitman 3 141% 717%
Watch Dogs Legion 79% 506%
World of Warcraft: Shadowlands 166% 800%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon R9 M485X 4GB are massively better than the AMD Radeon HD 8850M.

The R9 M485X has a 98 MHz higher core clock speed and 88 more Texture Mapping Units than the Radeon HD 8850M. This results in the R9 M485X providing 67.5 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 R9 M485X has a 98 MHz higher core clock speed and 16 more Render Output Units than the Radeon HD 8850M. This results in the R9 M485X providing 13.1 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 R9 M485X was released over three years more recently than the Radeon HD 8850M, and so the R9 M485X is likely to have far better driver support, meaning it will be much more optimized and ultimately superior to the Radeon HD 8850M when running the latest games.

The R9 M485X has 2048 MB more video memory than the Radeon HD 8850M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the R9 M485X also has superior memory performance overall.

The R9 M485X has 128 GB/sec greater memory bandwidth than the Radeon HD 8850M, which means that the memory performance of the R9 M485X is massively better than the Radeon HD 8850M.

The Radeon R9 M485X 4GB has 2048 Shader Processing Units and the Radeon HD 8850M has 640. However, the actual shader performance of the R9 M485X is 1259 and the actual shader performance of the Radeon HD 8850M is 496. The R9 M485X having 763 better shader performance and an altogether better performance when taking into account other relevant data means that the R9 M485X delivers a massively smoother and more efficient experience when processing graphical data than the Radeon HD 8850M.

The Radeon R9 M485X 4GB requires 125 Watts to run and the Radeon HD 8850M requires 45 Watts. The R9 M485X requires 80 Watts more than the Radeon HD 8850M to run. The difference is significant enough that the R9 M485X may have an adverse affect on your yearly electricity bills in comparison to the Radeon HD 8850M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed723 MHzvs625 MHz
Boost Clock-vs775 MHz
ArchitectureGCN 1.2 Amethyst XTGCN 1.1 Venus PRO
OC Potential Fair vs Fair
Driver Support Great vs -
Release Date13 May 2016vs01 Apr 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
10
green tick vs
7.2
1600x900
9.8
green tick vs
5.5
1920x1080
7.8
green tick vs
4.1
2560x1440
5.7
green tick vs
2.6
3840x2160
4.2
green tick vs
1.8

GPU Memory

Memory4096 MBvs2048 MB
Memory Speed1250 MHzvs1000 MHz
Memory Bus256 Bitvs128 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth160GB/secvs32GB/sec
L2 Cache 768 KB green tick vs 256 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units2048vs640
Actual Shader Performance61%vs24%
Technology28nmvs28nm
Texture Mapping Units128vs40
Texture Rate92.5 GTexel/svs25 GTexel/s
Render Output Units32vs16
Pixel Rate23.1 GPixel/svs10 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections0vs-
Comparison

GPU Power Requirements

Max Power125 Wattsvs45 Watts
Recommended PSU--

GPU Features

DirectX12.0vs11.1
Shader Model5.0vs5.0
Open GL4.5vs4.2
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i7-6820HQ 4-Core 2.7GHzvsIntel Core i5-3360M 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1920x1080vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon R9 M485X 4GB is a Performance Mobile Graphics Card based on the second revision of the Graphics Core Next Architecture (CGN).

Architecture
Radeon R9 M485X 4GB Features a GPU Codenamed Amethyst XT which is a Third Gen GCN GPU and is identical to the Tonga XT GPU used on the Desktop Radeon R9 380X.
Amethyst XT has 32 Compute Units Unlocked and thus offers 2048 Shader Processing Units, 128 TMUs and 32 ROPs.

GPU
The Central Unit is Clocked at 723MHz.

Memory: Speed
The GPU is equipped with fast GDDR5 and Accesses the Frame Buffer through a 256-bit Memory Interface. The Memory Clock Operates at 1250MHz.

Memory: Frame Buffer
The GPU can fill up a Memory Pool of up to 4GB. Under most circumstances, this only proves useful in certain 3D Games whose Settings Require Large Amounts of Memory.
However, because the GPU itself is too weak to work under other circumstances in which 4GB of Memory are needed - such as 4K Gaming, a Large Frame Buffer is mostly a Gimmick.

Power Consumption
With a rated board TDP of 125W, it is suited for very large laptops.

Performance
Radeon R9 M485X 4GB is a Direct Rebrand of Radeon R9 M395X 4GB.
Performance is Comparable to the desktop Radeon R9 280. Therefore, even GeForce GTX 970M is still faster.

System Suggestions
Radeon R9 M485X 4GB is best suited for resolutions up to and including 1920x1080. We recommend a Strong Processor and 8GB of RAM for Optimal Performance.
Overview
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.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-