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AMD Radeon HD 7850M

AMD Radeon HD 7850M

The AMD Radeon HD 7850M is a 28nm DirectX 11 graphics card based on the GCN (Graphics Core Next) architecture. Built primarily for medium-large laptops, the graphics card is positioned in the performance category as of 2012.

The design of the Radeon 7800M series has its roots to the Cape Verde chip as found, for example, on the desktop Radeon HD 7770 with 640 1D shader cores and 40 texture units. However, the core clock of only 675 MHz is significantly lower, also in comparison with the HD 7870M (800 MHz).  As a result, the performance of the HD 7850M should be similar to the desktop HD 7750.

The 7850M is in range of Nvidias GeForce GTX 660M, offering similar or slightly better performance and a similar power consumption. Therefore, current (Spring 2012) and demanding games should run fluently in medium or high settings.

Features of the 7850M include the new UVD3 video decoder for decoding MPEG-4 AVC/H.264, VC-1, MPEG-2, Flash and now also Multi-View Codec (MVC) and MPEG-4 part 2 (DivX, xVid) HD videos directly from the AMD GPU.

The 7800M series also supports automatic graphics switching between the integrated GPU and discrete GPU. Called Enduro, the technology supersedes AMD's Dynamic Switchable Graphics and is similar to Nvidia's Optimus. Furthermore, the 7850M can directly support up to 6 connected monitors using Eyefinity Technology if Enduro is disabled.

Other features of the 7800M series include ZeroCore for reducing power consumption when the display is turned off and Power Gating to power down areas of the chip that are not used. PowerTune allows automatic overclocking and underclocking of the graphics card as long as the GPU is within its TDP range. For example, the chip may be underclocked when running FurMark and OCCT, but will overclock in certain games like Lost Planet, Crysis or Resident Evil 5.

The integrated HD audio processor is able to transmit HD Audio (TrueHD or DTS Master Audio) over HDMI and DisplayPort (e.g., for Blu-Ray videos). Additionally, it now allows audio to output simultaneously and in parallel to multiple devices with the new Discrete Digital Multipoint Audio (DDMA) feature.

Power consumption of the 7850M should be clearly below the 7870M, thanks to the lower core clock.

ManufacturerAMD
Radeon HD 7800M Series

Radeon HD 7870M

640 @ 800 MHz128 Bit @ 4000 MHz
Radeon HD 7850M 640 @ 675 MHz128 Bit @ 4000 MHz
CodenameHeathrow Pro
ArchitectureGCN
Pipelines640 - unified
Core Speed *675 MHz
Memory Speed *4000 MHz
Memory Bus Width128 Bit
Memory TypeGDDR5
Shared Memoryno
DirectXDirectX 11.1, Shader 5.1
Power Consumption32 Watt
technology28 nm
Notebook Sizelarge
Date of Announcement24.04.2012
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark 11 - Performance GPU 1280x720
0% 100%
min: 2311      avg: 2467 (15%)     median: 2467 (15%)     max: 2623 points
3DMark 11 - Performance 1280x720
0% 100%
min: 2594      avg: 2760 (21%)     median: 2760 (21%)     max: 2926 points
3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 10701      avg: 10701 (23%)     median: 10701 (23%)     max: 10701 Points
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 12254      avg: 12254 (32%)     median: 12254 (32%)     max: 12254 Points
3DMark 06
0% 100%
min: 14111      avg: 14111 (47%)     median: 14111 (47%)     max: 14111 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

For more games that might be playable and a list of all games and graphics cards visit our Gaming List

Notebook reviews with AMD Radeon HD 7850M graphics card

HP Envy 17-3200: Intel Core i7 3820QM, 17.3", 3.3 kg
  External Review » HP Envy 17-3200

HP Envy 17-3270nr: Intel Core i7 3610QM, 17.3", 3.3 kg
  External Review » HP Envy 17-3270nr

» Comparison of GPUs
Detailled list of all laptop GPUs with a short description. Classified and sorted by performance.

» Benchmark List
Sortable and restrainable list of all GPUs with benchmarks (e.g. 3DMarks).

» Notebook Gaming List
Which game can be played with my graphics card.

Class 1
GeForce GTX 590
GeForce GTX 580
Radeon HD 6970
GeForce GTX 570
GeForce GTX 560 Ti
Radeon HD 5850
Radeon HD 7770
Radeon HD 7770
GeForce GTX 460 768MB
Radeon HD 6790
Radeon HD 5770
GeForce GTX 550 Ti
Class 2
GeForce GTS 450
Radeon HD 4850
Class 3
Radeon HD 5670
GeForce GT 240
Radeon R6 M255DX
GeForce GT 430
Radeon HD 5570
GeForce GT 220
Radeon HD 6450 GDDR5
Class 4
Radeon R3 (Mullins/Beema)
Mali-T760 MP6
Class 5
PowerVR GX6450
Radeon HD 4350
GeForce G 107M *
Chrome9HD *
Class 6
unknown *

* Approximate position of the graphics adapter

> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Comparison of Laptop Graphics Cards > AMD Radeon HD 7850M
Author: Klaus Hinum (Update: 2013-01-17)