Bought J3355B-ITX speed issue

Hi

I have just bought a J3355B-ITX motherboard and it is advertised as having speed up to 2.5ghz. But when stressing the CPU I have noticed that it maxes out at 2.4ghz. That means 24x100 is the most that it will run at. Should it not be 25x100 for its maximum speed when being stressed at 100% usage.?

Thanks

Vimes wrote: Hi I have just bought a J3355B-ITX motherboard and it is advertised as having speed up to 2.5ghz. But when stressing the CPU I have noticed that it maxes out at 2.4ghz. That means 24x100 is the most that it will run at. Should it not be 25x100 for its maximum speed when being stressed at 100% usage.? Thanks

If we check the specifications of your board's J3355 processor, we find that 2.5GHz is what Intel calls the "Burst Frequency".

http://www.intel.com/content/www/us/en/products/processors/celeron/j3355.html

Burst Frequency is similar to a Turbo speed of other Intel processors. The Turbo and Burst frequency/speed is not the maximum standard processor speed. Turbo speeds occur only on a subset of the processor cores under certain conditions and situations. The same is true for the Burst Frequency. Turbo and Burst speeds are not maintained on a continuous basis.

When stress testing an Intel processor with the Turbo feature, the maximum speed all the cores will achieve will be the maximum specified frequency, which is not the Turbo frequency. The same is true for the Burst frequency.

In the case of the J3455-ITX board, and its J3455 processor, the Burst Frequency is 2.3GHz:

http://ark.intel.com/products/95594/Intel-Celeron-Processor-J3455-2M-Cache-up-to-2_3-GHz

So this one is on Intel, or a slight misunderstanding of the specifications of these processors.