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Gaming Performance Comparison

Recommended System Requirements
Game Radeon RX 560X 4GB Mobile Radeon HD 8850M
Cyberpunk 2077 46% 528%
Hitman 3 90% 717%
Assassins Creed: Valhalla 33% 474%
Resident Evil 8 46% 528%
FIFA 21 26% 217%
Grand Theft Auto VI 105% 783%
Call of Duty: Black Ops Cold War 29% 456%
Genshin Impact 46% 528%
The Medium 82% 683%
Far Cry 6 111% 808%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon RX 560X 4GB Mobile are massively better than the AMD Radeon HD 8850M.

The RX 560X has a 550 MHz higher core clock speed and 24 more Texture Mapping Units than the Radeon HD 8850M. This results in the RX 560X providing 50.2 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 RX 560X has a 550 MHz higher core clock speed than the Radeon HD 8850M and the same number of Render Output Units. This results in the RX 560X providing 8.8 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 RX 560X was released over three years more recently than the Radeon HD 8850M, and so the RX 560X 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 RX 560X 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 RX 560X also has superior memory performance overall.

The RX 560X has 80 GB/sec greater memory bandwidth than the Radeon HD 8850M, which means that the memory performance of the RX 560X is much better than the Radeon HD 8850M.

The Radeon RX 560X 4GB Mobile has 1024 Shader Processing Units and the Radeon HD 8850M has 640. However, the actual shader performance of the RX 560X is 1306 and the actual shader performance of the Radeon HD 8850M is 496. The RX 560X having 810 better shader performance and an altogether better performance when taking into account other relevant data means that the RX 560X delivers a massively smoother and more efficient experience when processing graphical data than the Radeon HD 8850M.

The RX 560X transistor size technology is 14 nm (nanometers) smaller than the Radeon HD 8850M. This means that the RX 560X is expected to run slightly cooler and achieve higher clock frequencies than the Radeon HD 8850M.

The Radeon RX 560X 4GB Mobile requires 80 Watts to run and the Radeon HD 8850M requires 45 Watts. We would recommend a PSU with at least 450 Watts for the RX 560X. The RX 560X requires 35 Watts more than the Radeon HD 8850M to run. The difference is significant enough that the RX 560X may have a slight adverse affect on your yearly electricity bills in comparison to the Radeon HD 8850M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed1175 MHzvs625 MHz
Boost Clock1275 MHzvs775 MHz
ArchitectureGCN 1.3 Baffin XTGCN 1.1 Venus PRO
OC Potential - vs Fair
Driver Support Great vs -
Release Date13 Apr 2018vs01 Apr 2013
GPU LinkGD LinkGD Link

Resolution Performance

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GPU Memory

Memory4096 MBvs2048 MB
Memory Speed1750 MHzvs1000 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth112GB/secvs32GB/sec
L2 Cache 1024 KB green tick vs 256 KB
Delta Color Compression yes vs no
Memory Performance 0% green tick vs green tick 0%

GPU Display

Shader Processing Units1024vs640
Actual Shader Performance63%vs24%
Texture Mapping Units64vs40
Texture Rate75.2 GTexel/svs25 GTexel/s
Render Output Units16vs16
Pixel Rate18.8 GPixel/svs10 GPixel/s

GPU Outputs

Max Digital Resolution (WxH)5120x2880vs4096x2160
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections1vs0
DisplayPort Connections1vs-

GPU Power Requirements

Max Power80 Wattsvs45 Watts
Recommended PSU450 Watts-

GPU Features

Shader Model-vs5.0
Open GL4.5vs4.2
Open CL-vs-
Notebook GPUyesyes

GPU Supporting Hardware

Recommended Processor-Intel Core i5-3360M 2.8GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1600x900vs1366x768

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
\r\nThe new AMD Radeon RX 500X series are an OEM version of the current RX 500 series. Radeon RX 560X 4GB Mobile is an Middle-Class Graphics Card based on the 4th Generation of the Graphics Core Next (GCN) Architecture. The specs of the Radeon RX 500X series graphics cards are identical to the standard Radeon RX 500 series.

\r\nIt equips a GPU Codenamed Polaris 21 which has 16 Compute Units activated and thus 1024 Shader Processing Units, 64 TMUs and 16 ROPs.

\r\nThe GPU accesses a 4GB frame buffer of Fast GDDR5, through a 128-bit memory interface, while the Memory Clock Operates at 1750MHz, 7GHz effective.

\r\nPower Consumption
\r\nWith a rated board TDP of 80W, it requires at least a 450W PSU and relies entirely on the PCI Slot for Power, meaning no Extra Connectors are required.

\r\nThis graphics card was designed and marketed towards the competitive MOBO gamers. A light weight, small form factor GPU solution that offers mobility, so that gamers travelling to events can bring a smaller cheaper gaming rig. The Radeon RX 560X 4GB Mobile can play most modern games at medium graphics selection on a 1080p screen res and expect around 45+FPS. Performance is exactly the same as the Radeon RX 560.

\r\nSystem Suggestions
\r\nRadeon RX 560X 4GB Mobile is best suited for resolutions up to and including 1920x1080. We recommend a Performance Processor and 8GB of RAM for Optimal Performance.
Radeon HD 8850M is a Performance Mobile Graphics Card based on the Second Revision of the GCN 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.

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.

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.

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.

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
GPU Variants