A Question on Network Cards, and my choice of hardware….
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It probably has something to do with what whosmatt mentioned. I very much doubt that a huge supplier (or any supplier) like ASRock is crippling hardware secretly.
This is probably just not the right way to test that.
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It looks like a moderator did answer you over there:
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.
Similar response to what you got over here.
Especially since two people are seeing the same result on different CPUs, almost certainly either a misunderstanding of the technology, an error in testing method or both.
Highly unlikely (read, it isn't) a secret nerf from Intel or ASRock.Burst does not = Turbo Boost, but there isn't any clear paper explaining it by Intel (that I've found).
https://www.pcper.com/reviews/Processors/Intel-Atom-Z3000-Series-Review-Bay-Trail-and-Silvermont-Arrive/Intel-Burst-and-Ac -
I think that it is more of how the board was advertised at Amazon which, for me, started the confusion….
ASRock J3355B-ITX J3355 2DDR3(SOD)/2S3/GL M-ITX ASRock Super Alloy Intel Dual-Core Processor J3355 (up to 2.5 GHz)
And in the motherboard spec at Amazon......
Processor Speed 2.5 GHz
Which should be amended.
ASRock J3355B-ITX 2DDR3(SOD)/2S3/GL M-ITX Motherboard - Grey
https://www.amazon.co.uk/dp/B01M9EXCYB/ref=cm_sw_r_cp_apa_0556ybD5VSKG1
At least we know.
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Oh yeah, those damn advertisements will get you!
When speccing your hardware it's always best to read the manufacturers spec (in this case Intel ARK).
When determining the CPU you need it's best to figure out about the minimum single core clock frequency you can get away with to do what you need, and buy something that meets (or very nearly meets) that as a base frequency. Turbo Boost and Burst frequencies can't be relied on to give you performance because of the way they are designed. Think of them as a bonus you'll get every now and then and you won't be disappointed.
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How I do agree.!
I did check out the CPU with Intel to understand the TDP and then read….
Processor Base Frequency
2.00 GHzBurst Frequency
2.50 GHzWhat I didn't understand is how the burst mode values are arrived that. Sort of different to how my 6700k is listed.
It was important to know if the CPU supported the AES instruction set and, if needed, virtualization.