How to know if I have a R9 390 or R9 390X? (Was I schemed?)

[DanaTheCat]

Hello.
I ordered a computer a week ago, and it works very well.
However, today I entered the computer properties tab, and noticed something weird.
It said my GPU is R9 390, although I have ordered a R9 390X, I downloaded a software which said the exact thing: I have a R9 390.
I opened the computer case, but could not see which GPU I have.
Before I go to the person who made the computer for me, I want to know if seeing the R9 390 name instead of the R9 390x name on my properties and another software is normal, and should be like this, or should I be worried?
I am very upset and stressed now, so please help me.
Thank you very much

 

[Mousemonkey]

Which software did you download?

 

[cst1992]

Here's the difference between the two cards using GPU-Z:

If in "Shaders" you see 2560, you know you have a 390. If you see 2816, you have a 390X.

Both cards are mostly identical, and consume an equivalent amount of power. But one is definitely slower. If you indeed have a 390, you should take it up with the seller. There's a $100 difference in price too.

 

[DanaTheCat]

Thank you