AMD Radeon HD 7500G vs AMD Radeon HD 7640G

AMD Radeon HD 7500G

The AMD Radeon HD 7500G or HD7500G is a processor graphics card in the Trinity APUs from AMD. It is the slowest version at launch and integrated in the ULV-A6 variants (A6-4455M at launch). It should be based on the VLIW4 architecture of the Radeon HD 6900 desktop series and most likely wont offer a dedicated graphics memory.

Trinity got its name due to the fact that it consists out of three different architecture parts. The CPU cores are based on the Piledriver architecture (Bulldozer successor), the GPU cores on Northern Islands GPU cores (6900 desktop series architecture) and the video processing engine and multi-display connectivity from the new Southern Islands GPU architecture (HD 7900 series).

The integrated UVD3 video decoder (Avivo HD) allows the full decoding of Multi-View Codec (MVC), MPEG-4 Part 2 (DivX, xVid), MPEG-4 AVC/H.264 and Adobe Flash HD videos.

The performance of the Radeon HD 7500G is similar to a dedicated Radeon HD 7470M or HD Graphics 4000. Modern games of 2013/2014 will only run fluently in very low detail and resolution settings.

The APU is still manufactured in 32nm and in the ULV versions (e.g. A6-4455M) it is aimed at ultrathin subnotebooks.

AMD Radeon HD 7640G

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The AMD Radeon HD 7640G or HD7640G is a processor graphics card in the Trinity APUs from AMD. It is the second fastest version and is featured only in the A8 series. It is based on the VLIW4 architecture of the Radeon HD 6900 series desktop graphics card and doesn't offer a dedicated graphics memory.

Trinity got its name due to the fact that it consists out of three different architecture parts. The CPU cores are based on the Piledriver architecture (Bulldozer successor), the GPU cores on Northern Islands GPU cores (HD 6900 desktop series) and the video processing engine and multi-display connectivity from the new Southern Islands GPU architecture (HD 7900 series).

The integrated UVD3 video decoder (Avivo HD) allows the full decoding of Multi-View Codec (MVC), MPEG-4 Part 2 (DivX, xVid), MPEG-4 AVC/H.264 and Adobe Flash HD videos.

The performance is in the mid range of HD 6000M series cards similar or slower than the AMD Radeon HD 6630M (see for benchmarks). Therefore, the graphics card is a bit faster than the Intel HD Graphics 4000 in Ivy Bridge CPUs.

The APU is still manufactured in 32nm and as most A8 series parts should be classified with a 35 Watt TDP, the HD 7640G is best suited for laptops of 13-14-inch an up.

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AMD Radeon HD 7500G

AMD Radeon HD 7640G

Radeon HD 7000G Series

Radeon HD 7660G	384 @ 0.5 - 0.69 GHz
Radeon HD 7620G	384 @ 0.36 - 0.5 GHz
Radeon HD 7640G	256 @ 0.5 - 0.69 GHz
Radeon HD 7600G	384 @ 0.32 - 0.42 GHz
Radeon HD 7500G	256 @ 0.33 - 0.42 GHz
Radeon HD 7520G	192 @ 0.5 - 0.69 GHz
Radeon HD 7420G	128 @ 0.48 - 0.66 GHz
Radeon HD 7400G	192 @ 0.33 - 0.42 GHz

Radeon HD 7660G	384 @ 0.5 - 0.69 GHz
Radeon HD 7620G	384 @ 0.36 - 0.5 GHz
Radeon HD 7640G	256 @ 0.5 - 0.69 GHz
Radeon HD 7600G	384 @ 0.32 - 0.42 GHz
Radeon HD 7500G	256 @ 0.33 - 0.42 GHz
Radeon HD 7520G	192 @ 0.5 - 0.69 GHz
Radeon HD 7420G	128 @ 0.48 - 0.66 GHz
Radeon HD 7400G	192 @ 0.33 - 0.42 GHz

Codename

Trinity

Architecture

Terascale 3

Pipelines

256 - unified

Core Speed

327 - 424 (Boost) MHz

497 - 686 (Boost) MHz

Shared Memory

yes

API

DirectX 11, Shader 5.0, OpenGL 4.2

technology

32 nm

Date of Announcement

15.05.2012

Notebook Size

medium sized

CPU in Radeon HD 7500G		GPU Base Speed	GPU Boost / Turbo
AMD A6-4455M	2 x 2100 MHz, 17 W	327 MHz	424 MHz

CPU in Radeon HD 7640G		GPU Base Speed	GPU Boost / Turbo
AMD A8-4500M	4 x 1900 MHz, 35 W	496 MHz	685 MHz
AMD A8-4557M	4 x 1900 MHz, 35 W	497 MHz	655 MHz
min. - max.		327 - 497 MHz	424 - 685 MHz