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Bought J3355B-ITX speed issue

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Vimes View Drop Down
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    Posted: 08 Apr 2017 at 2:09am
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
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Runaldo Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 2017 at 8:59pm
The same goes for the J3455-ITX board

It says up to 2.3ghz, but maxes out at 2.2ghz 22x100
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Post Options Post Options   Thanks (0) Thanks(0)   Quote parsec Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 2017 at 10:21pm
Originally posted by Vimes 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.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Vimes Quote  Post ReplyReply Direct Link To This Post Posted: 10 Apr 2017 at 11:12pm
Also it is one where it is somewhat misleading when advertised at Amazon....


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

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.

Then again when Asrock show on their website ....

Intelē°§ Dual-Core Processor J3355 (up to 2.5 GHz)

It is how the up to is, if ever, arrived at.

Edited by Vimes - 10 Apr 2017 at 11:16pm
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