Select any two GPUs for comparison
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Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 8850M Radeon HD 8870M
Cyberpunk 2077 528% 352%
Assassins Creed: Valhalla 474% 313%
Call of Duty: Black Ops Cold War 456% 300%
Hitman 3 717% 488%
Grand Theft Auto VI 783% 536%
FIFA 21 217% 128%
Far Cry 6 808% 554%
Genshin Impact 528% 352%
World of Warcraft: Shadowlands 800% 548%
Watch Dogs Legion 506% 336%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8870M are significantly better than the AMD Radeon HD 8850M.

The Radeon HD 8870M has a 100 MHz higher core clock speed and the same number of Texture Mapping Units as the Radeon HD 8850M. This results in the Radeon HD 8870M providing 4 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 Radeon HD 8870M has a 100 MHz higher core clock speed than the Radeon HD 8850M and the same number of Render Output Units. This results in the Radeon HD 8870M providing 1.6 GPixel/s better pixeling performance. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

Both the Radeon HD 8850M and the Radeon HD 8870M were released at the same time, so are likely to be quite similar.

The Radeon HD 8850M and the Radeon HD 8870M 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 8870M has 40 GB/sec greater memory bandwidth than the Radeon HD 8850M, which means that the memory performance of the Radeon HD 8870M is noticeably better than the Radeon HD 8850M.

Both the Radeon HD 8850M and the Radeon HD 8870M have 640 Shader Processing Units. The two GPUs are based on different architectures, but deliver an equivalent shader performance. To compare, we must continue to look at the memory bandwidth, Texture and Pixel Rates. In this case, the Radeon HD 8870M has 4 GTexel/s better Texture Fill Rate, 1.6 GPixel/s better Pixel Fill Rate, and 40 GB/sec greater memory bandwidth, so should have a noticeably faster performance than the Radeon HD 8850M.

The Radeon HD 8850M requires 45 Watts to run and the Radeon HD 8870M requires 50 Watts. The Radeon HD 8870M requires 5 Watts more than the Radeon HD 8850M to run. The difference is not significant enough for the Radeon HD 8870M to have a noticeably larger impact on your yearly electricity bills than the Radeon HD 8850M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed625 MHzvs725 MHz
Boost Clock775 MHzvs775 MHz
ArchitectureGCN 1.1 Venus PROGCN 1.1 Venus XT
OC Potential Fair vs Poor
Driver Support - vs -
Release Date01 Apr 2013vs01 Apr 2013
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
7.2
vs green tick
8.4
1600x900
5.5
vs green tick
6.4
1920x1080
4.1
vs green tick
5
2560x1440
2.6
vs green tick
3.1
3840x2160
1.8
vs green tick
2.2

GPU Memory

Memory2048 MBvs2048 MB
Memory Speed1000 MHzvs1125 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsGDDR5
Memory Bandwidth32GB/secvs72GB/sec
L2 Cache 256 KB green tick vs green tick 256 KB
Delta Color Compression no vs no
Memory Performance 0% green tick vs green tick 0%
Comparison

GPU Display

Shader Processing Units640vs640
Actual Shader Performance24%vs24%
Technology28nmvs28nm
Texture Mapping Units40vs40
Texture Rate25 GTexel/svs29 GTexel/s
Render Output Units16vs16
Pixel Rate10 GPixel/svs11.6 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)4096x2160vs2560x1600
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power45 Wattsvs50 Watts
Recommended PSU--

GPU Features

DirectX11.1vs11.1
Shader Model5.0vs5.0
Open GL4.2vs4.2
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfireyesvsyes
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3360M 2.8GHzvsIntel Core i5-3380M 2.9GHz
Recommended RAM8 GBvs8 GB
Maximum Recommended Gaming Resolution1366x768vs1600x900

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
Radeon HD 8870M 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 XT which has 10 Compute Units activated and thus offers 640 Shader Processing Units, 40 TMUs and 16 ROPs. The Central Unit Initially Operates at 725MHz and goes up to 775MHz, in Turbo Mode.

Memory
The GPU accesses a 2GB frame buffer of fast GDDR5, through a 128-bit memory interface. The size of the frame buffer is adequate. The memory clock operates at 1125MHz.

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 50W, it is suited for 17" or larger laptops.

Performance
Gaming benchmarks put its performance on average with NVIDIA's GeForce GTX 670M.

System Suggestions
We recommend a Decent Processor (Intel Core i5 Mobile) and 8GB of RAM for a system with Radeon HD 8870M.
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-