Select any two GPUs for comparison
VS

Gaming Performance Comparison

Recommended System Requirements
Game Radeon HD 8770M Radeon HD 6850M
Grand Theft Auto VI 960% 1077%
New World 567% 640%
Resident Evil 8 880% 988%
The Ascent 1217% 1362%
Battlefield 2042 880% 988%
Far Cry 6 990% 1110%
FIFA 22 280% 322%
Halo Infinite 880% 988%
Forza Horizon 5 493% 559%
Age of Empires IV 653% 736%

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8770M are very slightly better than the AMD Radeon HD 6850M.

The Radeon HD 8770M has a 100 MHz higher core clock speed than the Radeon HD 6850M, but the Radeon HD 6850M has 16 more Texture Mapping Units than the Radeon HD 8770M. As a result, the Radeon HD 6850M exhibits a 8.4 GTexel/s better Texture Fill Rate than the Radeon HD 8770M. 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 8770M has a 100 MHz higher core clock speed than the Radeon HD 6850M, but the Radeon HD 6850M has 8 more Render Output Units than the Radeon HD 8770M. As a result, the Radeon HD 6850M exhibits a 4.6 GPixel/s better Pixel Fill Rate than the Radeon HD 8770M. However, both GPUs support DirectX 9 or above, and pixeling performance is only really relevant when comparing older cards.

The Radeon HD 8770M was released over a year more recently than the Radeon HD 6850M, and so the Radeon HD 8770M is likely to have better driver support, meaning it will be more optimized for running the latest games when compared to the Radeon HD 6850M.

The Radeon HD 8770M has 1024 MB more video memory than the Radeon HD 6850M, so is likely to be much better at displaying game textures at higher resolutions. This is supported by the fact that the Radeon HD 8770M also has superior memory performance overall.

The Radeon HD 8770M has 46.4 GB/sec greater memory bandwidth than the Radeon HD 6850M, which means that the memory performance of the Radeon HD 8770M is noticeably better than the Radeon HD 6850M.

The Radeon HD 8770M has 384 Shader Processing Units and the Radeon HD 6850M has 800. However, the actual shader performance of the Radeon HD 8770M is 269 and the actual shader performance of the Radeon HD 6850M is 270. The Radeon HD 6850M having 1 better shader performance is not particularly notable, as altogether the Radeon HD 8770M performs better when taking into account other relevant data.

The Radeon HD 8770M transistor size technology is 12 nm (nanometers) smaller than the Radeon HD 6850M. This means that the Radeon HD 8770M is expected to run slightly cooler and achieve higher clock frequencies than the Radeon HD 6850M. While they exhibit similar graphical performance, the Radeon HD 8770M should consume less power than the Radeon HD 6850M.

The Radeon HD 8770M requires 20 Watts to run and the Radeon HD 6850M requires 50 Watts. The Radeon HD 6850M requires 30 Watts more than the Radeon HD 8770M to run. The difference is not significant enough for the Radeon HD 6850M to have a noticeably larger impact on your yearly electricity bills than the Radeon HD 8770M.

Game FPS Benchmarks On Ultra

GPU Architecture

Core Speed775 MHzvs675 MHz
Boost Clock825 MHzvs-
ArchitectureGCN 1.1 Mars XTTerascale 2 Granville PRO
OC Potential Poor vs Fair
Driver Support Great vs Poor
Release Date01 Apr 2013vs04 Jan 2011
GPU LinkGD LinkGD Link
Approved
Comparison

Resolution Performance

1366x768
6.4
green tick vs -
1600x900
4.9
green tick vs -
1920x1080
3.5
green tick vs -
2560x1440
2.5
green tick vs -
3840x2160
1.6
green tick vs -

GPU Memory

Memory2048 MBvs1024 MB
Memory Speed1125 MHzvs800 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeGDDR5vsDDR3
Memory Bandwidth72GB/secvs25.6GB/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 Units384vs800
Actual Shader Performance13%vs13%
Technology28nmvs40nm
Texture Mapping Units24vs40
Texture Rate18.6 GTexel/svs27 GTexel/s
Render Output Units8vs16
Pixel Rate6.2 GPixel/svs10.8 GPixel/s
Comparison

GPU Outputs

Max Digital Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs1
DVI Connections0vs2
HDMI Connections0vs1
DisplayPort Connections-vs-
Comparison

GPU Power Requirements

Max Power20 Wattsvs50 Watts
Recommended PSU--

GPU Features

DirectX12.0vs11.0
Shader Model5.0vs5.0
Open GL4.4vs4.3
Open CL-vs-
Notebook GPUyesyes
SLI/Crossfireyesvsno
Dedicatedyesvsyes
Comparison

GPU Supporting Hardware

Recommended ProcessorIntel Core i5-3360M 2.8GHzvsIntel Core i7-2617M 2-Core 1.5GHz
Recommended RAM8 GBvs6 GB
Maximum Recommended Gaming Resolution1600x900vs1600x900

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewOverview
Radeon HD 8770M is a Fast-Middle-Class 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 Mars XT which has 6 Compute Units activated and thus offers 384 Shader Processing Units, 24 TMUs and 8 ROPs. The Central Unit Initially Operates at 775MHz and goes up to 825MHz, 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 20W, it is suited for 13" or larger laptops.

Performance
Gaming benchmarks put its performance somewhat above NVIDIA's GeForce GT 645M.

System Suggestions
We recommend a Decent Processor (Intel Core i5 Mobile) and 8GB of RAM for a system with Radeon HD 8770M.
Radeon HD 6850M is a high-end GPU based on the 40nm Terrascale 2 architecture.
It's based on the Juniper Core (therefore related to Radeon HD 6770) and offers 800 Shader Processing Units, 40 TMUs and 16 ROPs on a 128-bit memory interface. Though fast GDDR5 is supported, the most common version features standard DDR3 but comes higher clocked. Its central clock runs at 675MHz and the memory clock operates at 800MHz.
Compared to Radeon HD 6850M, its performance is considerably slower due to being paired with standard DDR3 and the power consumption should remain similar since GDDR5 is more energy efficient.
Using a 720p resolution, most of today's games are only playable at medium settings but with very fluent frame rates (45+).
Recommended CPU
Possible GPU Upgrades
N/A
N/A
GPU Variants
-
-