NEED A NEW GRAPHICS CARD?

I know i seem like an idiot but i want to play DayZ with good graphics and decent frame rate and i don't want to have to play the game with all the graphics settings on low and still be stuck on 10 fps. So i'm going to be a new graphics card for around £100-£150. But which one? I have a lenovo H5s series pc (i'm not sure exactly which pc it is, it was bought for me pre-built, i know it has a intel i5 processor) which graphics card would work with my computer and also allow me to run dayz in high graphics at good frame rate? Please help? (i currently don't have a graphics card.)

Hi the problem you have is the mother board it will not take any more ram memory. That is the bottle neck not the graphics card but the mother board can't address any more memory.

Gtx 750 ti. This gpu is not that pricey but it get the job done believe me. See the benchmark at http://www.tomshardware.com/reviews/geforce-gtx-750-ti-review,3750.html… You can get this gpu at amazon, here is the link http://www.amazon.com/...00IDG3IDO/