Is the Asus Radeon R9 270x 4gb a good gpu?

I've recently been looking towards building a PC, I'm thinking on buying this graphics card just wondering what are your opinions on this card

well the 4GB version is not realy worth it probably.
The gpu it self is not powerfull enough to utilize that 4GB of vram anyway.

I have a 7870GHz which is basicly the same card as the 270X, The card it self is not bad, but it does start to struggle with new AAA games nowdays.

idk what your budget for a card is?

The 270X was a good card, now it becomes more of a low-end card due to development.
If you have the extra budget take a look at the R9 380.