Odd SP6 upgrade "option" + dock question

[daveyp]

According to Microsoft's website, the "i7 upgrade" gets you "UHD graphics".

I assume this is falsehood? As all should have HD620 graphics correct?

Any way to check detailed specs comparison side by side? I don't see any on microsoft's website.

Second:

I just sold my SP3 and am thinking about picking up a SP6. Any idea if this will work in a SP3 dock with maybe a fudged thickness adapter?

 

[wpcoe]

I've read of folks using the SP3 dock with the SP4 and SP2017, so I suspect it will also work with the SP6, as well.