AMD 785G Chipset Launch: ASUS and Gigabyte

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General Performance: LAME MT & Kribibench

In our custom LAME MT MP3 encoding test, we convert a large WAV file to the MP3 format, which is a popular scenario that many end users work with on a day-to-day basis to provide portability and storage of their digital audio content.  LAME is an open-source mid to high bit-rate and VBR (variable bit rate) MP3 audio encoder that is used widely around the world in a multitude of third party applications.

LAME MT
Audio Encoding

In this test, we created our own 223MB WAV file (a hallucinogenically-induced Grateful Dead jam) and converted it to the MP3 format using the multi-thread capable LAME MT application in single and multi-thread modes. Processing times are recorded below, listed in seconds. Once again, shorter times equate to better performance.

LAME MT can support of maximum of only two threads, hence the X3's strong performance versus the lower-clocked quad-cores here. Once again, the new Phenom II processors perform well, albeit this time just a bit shy of the Intel-based competition.
 


The new AMD 785G boards are very competitive here and they even catch up to the premium AMD 790FX chipset which lagged behind in both multi-threaded and single-thread tests. Performance compared to the Intel platforms is very similar overall.

Kribibench v1.1
CPU-Bound 3D Rendering

For this next batch of tests, we ran Kribibench v1.1, a 3D rendering benchmark produced by the folks at Adept Development.  Kribibench is an SSE aware software renderer in which a 3D model is rendered and animated by the host CPU and the average frame rate is reported.  We used two of the included models with this benchmark: a "Sponge Explode" model consisting of over 19.2 million polygons and the test suite's "Ultra" model that is comprised of over 16 billion polys.


Kribibench offers us our first taste of the AMD 785G's 3D Rendering performance. The new AMD 785G perform very well and fall in right behind the premium AMD 790FX chipset. Note that Kribibench uses the CPU for all of its rendering so the graphics processor has no effect on the results.

Tags:  AMD, Radeon, Chipset, 785G, IGP, HD 4200

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