Shuttle XPC slim Barebone DS10U3 Review
 

Even if we are dealing only with a dual-core SoC, we are benefitting from HyperThreading and considerably higher clocks versus the Celeron SKUs we have tested in the past. The performance increase is not only visible when launching apps or working with multiple applications at once, but also in the 3D department, as you could notice from our game benchmarks. The SoC is capped at 15W so depending on the load, the clocks will differ in order to fit this power envelope. Thanks to the large heatsink, the system can function without any fan installed up to ambient of 40 degrees Celsius, so if you set it up with an SSD it will be basically noiseless.

http://www.madshrimps.be/articles/article/1001186/