The new version is able to decode two HD streams simultaneously (e.g., for Blu-Ray picture in picture) if the graphic card offers enough memory bandwidth (which may not be the case for the HD 5430). The Mobility Radeon HD 5000 series includes an improved video processor (UVD2) to decode HD videos with the graphic card. Therefore, the performance of ATI stream, OpenCL, and DirectCompute 11 applications should be noticable better. Compared to the HD 5600/5700 series which feature 400 cores, the core count of the HD5400 series is clearly cut down leading to a reduced computation power of 88 versus 360-520 (HD 5650) GigaFLOPs.Īccording to AMD, the HD 5000 series was also improved regarding general computing (as the HD4000 series was not optimized for this). The cores support DirectX 11 functions in hardware (Tessellation, OIT, Post-Processing, Shadows, HDR Texture Compression). The HD5430 offers only 80 MADD cores (called Stream Processors) which are grouped in 16 5-dimensional groups. If DDR2 is used by the laptop vendor the performance be a bit worse. The memory interface of the Mobility 5430 is composed out of one 64 bit wide controller that can access (G)DDR2 or (G)DDR3 (perhaps even GDDR5). Note that the CPU also has to be quite fast to achieve high frame rates in modern games. Only very old games like Doom3 (or casual games) should run in high detail settings. Demanding games like Crysis ran on the HD 4530 in minimum details and resolution with 45 fps.
Therefore, all current games should be playable in low details (perhaps with stuttering). Due to the similar clock rate, the 3D gaming performance should be on one level with the HD 4530.
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