AMD Radeon HD 6470M vs AMD Radeon HD 6430M

AMD Radeon HD 6470M

The AMD Radeon HD 6470M (sometimes also still called ATI Mobility Radeon HD 6470) is a laptop graphics card for entry level to middle class notebooks. It should be based on the Seymore-XT chip and therefore feature the UVD 3 video decoder. Compared to the faster HD 6490M, the 6470M only supports slower DDR3 graphics memory.

The 120 Stream processors should be still based on the "old" 5D architecture similar to the 5000 series. Therefore, the number of shaders is not comparable to the 1D cores of current Nvidia GPUs. The Tessellation performance should be improved (like the desktop 6800 series) with the new cards. The Stream processors can be used with DirectX 11, OpenGL 4.1, DirectCompute 11 and OpenCL. With the later two the cores can also be used for general computations like transcoding videos.

The performance should be somewhere between the HD6370M (renamed 5470) that features less shaders and the HD5650. Therefore, all current games should run in low detail settings fluently.

The new UVD3 video decoder supports the decoding of 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 on the graphics card.

Furthermore, the HD 6400M series integrates a HD audio controller to transmit HD Audio (TrueHD or DTS Master Audio) over HDMI and DisplayPort (e.g. for Blu-Ray videos).

The AMD HD3D Technology offers support for Blu-Ray 3D and 3D displays (integrated and external). However, the solution is not as mature as Nvidias 3D Vision.

Thanks to Eyefinity the graphics chip is able to theoretically drive up to 4 monitors simultaneously. However, this only works if the laptop features enough DisplayPort outputs.

The power consumption of the chip should be similar to the Mobility Radeon HD 5470 and therefore suited for 13" laptops and up.

AMD Radeon HD 6430M

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The AMD Radeon HD 6430M (sometimes also still called ATI Mobility Radeon HD 6430) is a laptop graphics card for entry level class notebooks. It is based on the Seymore-LP (for low power) chip and therefore suited for small laptops. It integrates the UVD 3 video decoder and is the slowest chip of the 6400M series.

The performance should be similar to the HD 5450 (see for benchmarks) that features less shaders but a higher core clock. Therefore, the card is only suited for entry level gaming. Demanding games may stutter even with low detail settings.

The new UVD3 video decoder supports the decoding of 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 on the graphics card.

Furthermore, the HD 6400M series integrates a HD audio controller to transmit HD Audio (TrueHD or DTS Master Audio) over HDMI and DisplayPort (e.g. for Blu-Ray videos).

The AMD HD3D Technology offers support for Blu-Ray 3D and 3D displays (integrated and external). However, the solution is not as mature as Nvidias 3D Vision.

Thanks to Eyefinity the graphics chip is able to theoretically drive up to 4 monitors simultaneously. However, this only works if the laptop features enough DisplayPort outputs.

The power consumption of the chip should be similar to the Mobility Radeon HD 5430 and therefore suited for small laptops.

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AMD Radeon HD 6470M

AMD Radeon HD 6430M

Radeon HD 6400M Series

Radeon HD 6490M	160 @ 0.7 GHz	64 Bit @ 800 MHz
Radeon HD 6470M	160 @ 0.7 GHz	64 Bit @ 800 MHz
Radeon HD 6450M	160 @ 0.6 GHz	64 Bit @ 800 MHz
Radeon HD 6430M	160 @ 0.48 GHz	64 Bit @ 800 MHz

Radeon HD 6490M	160 @ 0.7 GHz	64 Bit @ 800 MHz
Radeon HD 6470M	160 @ 0.7 GHz	64 Bit @ 800 MHz
Radeon HD 6450M	160 @ 0.6 GHz	64 Bit @ 800 MHz
Radeon HD 6430M	160 @ 0.48 GHz	64 Bit @ 800 MHz

Codename

Seymour XT

Seymour-LP

Architecture

Terascale 2

Pipelines

160 - unified

Core Speed

700 / 750 MHz

480 MHz

Memory Speed

800 MHz

Memory Bus Width

64 Bit

Memory Type

DDR3

Max. Amount of Memory

1024 MB

Shared Memory

API

DirectX 11, Shader 5.0

technology

40 nm

Date of Announcement

06.01.2011

04.01.2011

Link to Manufacturer Page

www.amd.com