My pc is pretty good not the greatest but i think it should be able to run minecraft easily but it sucks. It will be locked at 60fps and then drop suddenly every few seconds to below 30 and then jump back up and it makes the game unplayable. It easily runs games like bioshock wolfenstein watch dogs far cry on ultra or very high at 60fps. My friend said he thinks its running off my cpu which isnt that great so i wouldnt be surprised if that was why but id like to figure out how to make it run on my gpu. Thanks
pc specs
MSI B85M-G43
Intel Core i5-4430
Sapphire Radeon R9-270x OC
8GB 2300 RAM