Test SSD Speed plugged and unplugged charger

[saidgta]

i tested SSD speed of my SP4 i5 128GB by HD Tune Software.
there is a big difference between plugged and unplugged charger; but is this Normal?!

Plugged Charger:

Unplugged Charger:

 

[GreyFox7]

Is it consistently reproducible? How many times did you do this?

Can anyone independently verify these results?

Note that maximum and burst rate speeds are not that different.
There could have been a background process doing something that affected your results.

 

[saidgta]

Is it consistently reproducible? How many times did you do this?

Can anyone independently verify these results?

Note that maximum and burst rate speeds are not that different.
There could have been a background process doing something that affected your results.

I tried 4 times. No background process.

 

[GreyFox7]

An average of 600 on battery is not really bad.

 

[Afy]

Does it really have an effect in your real world use case?

Personally the only time I have noticed a difference in HDD performance on any machine is when using an external SSD versus a mechanical drive. And that too mostly running VM's. YMMV.. do let us know.

 

[saidgta]

Does it really have an effect in your real world use case?

Personally the only time I have noticed a difference in HDD performance on any machine is when using an external SSD versus a mechanical drive. And that too mostly running VM's. YMMV.. do let us know.

May it really have not an effect in real world use, but the problem is:
"Is this deference Normal?!"