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Gaming Performance Comparison

In terms of overall gaming performance, the graphical capabilities of the AMD Radeon HD 8550G are very slightly better than the AMD Radeon HD 7640G.

The Radeon HD 8550G was released less than a year after the Radeon HD 7640G, and so they are likely to have similar driver support for optimizing performance when running the latest games.

The Radeon HD 8550G and the Radeon HD 7640G have the same amount of video memory, but are likely to provide slightly different experiences when displaying game textures at high resolutions.

The memory bandwidth of the Radeon HD 8550G and the Radeon HD 7640G are the same, which means the Radeon HD 8550G and the Radeon HD 7640G have equal limitations when it comes to graphical data transfer.

Both the Radeon HD 8550G and the Radeon HD 7640G have 256 Shader Processing Units. While the two GPUs have the same number of SPUs, the actual performance delivered by the . Knowing that the shader performance of the Radeon HD 8550G is superior, it is not necessary to examine the GPUs' respective Texture and Pixel Fill Rates.

The Radeon HD 8550G requires 35 Watts to run and the Radeon HD 7640G requires 35 Watts. The two GPUs require the same amount of wattage to run. As such, there is no need to worry about which will more significantly affect your yearly electricity bills.

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GPU Core Details

Core Speed515 MHzvs496 MHz
ArchitectureTerascale 3Terascale 3: Trinity
Notebook GPUyesyes
SLI/Crossfirenovsno
Dedicatednovsno
Release Date12 Mar 201315 May 2012
GPU LinkGD LinkGD Link
Approved
Comparison

GPU Memory

Memory-vs-
Memory Speed800 MHzvs800 MHz
Memory Bus128 Bitvs128 Bit
Memory TypeDDR3vsDDR3
Memory Bandwidth25.6GB/secvs25.6GB/sec
L2 Cache - vs -
Comparison

GPU Display

Shader Processing Units256vs256
Actual Shader Performance132vs127
Technology-vs32nm
Texture Mapping Units-vs16
Texture Rate-vs7.9 GTexel/s
Render Output Units-vs8
Pixel Rate-vs4 GPixel/s
Comparison

GPU Display Tech

DirectX11.1vs11
Shader Model5.0vs5.0
Open GL4.2vs4.1
Max Resolution (WxH)2560x1600vs2560x1600
VGA Connections0vs0
DVI Connections0vs0
HDMI Connections0vs0
Comparison

GPU Power Requirements

Max Power35 Wattsvs35 Watts

GPU Supporting Hardware

Recommended RAM--
Recommended Screen Size--
Recommended PSU--

Gaming Performance Value

Performance Value

GPU Mini Review

Mini ReviewRadeon HD 8550G is an integrated mobile GPU, first seen on the APU A8-5550M, based on the 32nm, Terascale 3 architecture.
It offer 256 Shader Processing Units, 16 TMUs and 8 ROPs, on a DDR3 memory interface of either a 128-bit bus width, if the laptop system RAM's is dual-channelled, or a 64-bit bus width, if not. The central units runs at 515MHz and goes up to 720MHz, in Turbo Mode. The memory clock can operate up to 800MHz, as the max memory supported by the CPU is DDR3-1600.
Its performance depends heavily on whether or not the memory is dual-channelled. Benchmarks put its performance on level with today's middle-class GPUs such as GeForce GT 625M or Radeon HD 7630M. Therefore, modern demanding games can be played with medium detail.
Radeon HD 7640G is an integrated GPU on the fast-middle-class Trinity CPUs.
It's based on the 32nm Terascale 3 architecture and offers 256 Shader Processing Units, 16 TMUs and 8 ROPs. The memory interface will depend on whether or not the laptop's system RAM is dual channelled (128-bit if so, 64-bit, if not) and the operating memory clock can be up to 800MHz (max speed supported by the CPU). The central unit runs at 496MHz and will go up to 685MHz in Turbo Mode. Expect a TDP of up to 35 Watt.
Its performance is slightly above Intel HD 4000 Graphics but below previous in series - Radeon HD 7620G, despite the naming, due to the lesser Shaders count which proves useful in most of today's modern games.
Some of today's modern games can be playable using the Medium preset though the low preset will have to suffice for most of them. Extremely demanding games (e.g. Crysis 3) are playable but with reduced frame rates.
Recommended CPU--
Possible GPU Upgrades--
GPU Variants--