X51 R2, graphics card upgrade, #12

My graphics card has died after almost 7 years owning the X51 R2 and I am looking for suggestions to replace this that is not too costly. Can anyone recomend a good graphics card that will fit the case and not struggle from overheating?

Previous Graphics Card: AMD Radeon™ R9 270 with 2GB GDDR5

PC Specs:

Alienware X51 R2 Standard Base

8GB Dual Channel DDR3 at 1600Mhz

Intel® Core™ i7-4770 Processor

330W AC Adaptor