What's the best GPU that I could buy for my Acer AME600-UR378 FOR UNDER $300?

[AtomicWarrior]

What do you believe could be the best gpu that i could buy under the $300 range for my Acer Aspire AME600-UR378 computer? My main purpose is gaming so anything that can run Battlefield 4 or Crysis 3 on ultra/ very high settings would be the one for me.

Link to my computer and it's specs on newegg:
http://www.newegg.com/Product/Product.aspx?Item=N82E16883103639&cm_re=acer_aspire_ame600_ur378-_-83-103-639-_-Product

 

[PCBuilderMonster]

MSI GTX 970 Gaming OC Editing 279 bucks on newegg

 

[CoolCurt912]

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202125&cm_re=r9_280x-_-14-202-125-_-Product

This! $289 way better then the first answer

 

[PCBuilderMonster]

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202125&cm_re=r9_280x-_-14-202-125-_-Product

This! $289 way better then the first answer

<b> I challenge that statement, every single benchmark shows a GTX 770 being slightly higher of a performer than the R9 280X

 

[PCBuilderMonster]

<p><b> Trying out bold letters lol

 

[CoolCurt912]

http://www.newegg.com/Product/Product.aspx?Item=N82E16814202125&cm_re=r9_280x-_-14-202-125-_-Product

This! $289 way better then the first answer

<b> I challenge that statement, every single benchmark shows a GTX 770 being slightly higher of a performer than the R9 280X

Fine. the gtx 770 is a little better but a lot more money its not worth the extra!