When I first got my games on Steam, I was worried about my Laptop's ability to run them, since I was using a Nvidia 525M with only 1.5GB (also I have an i7 and 8GB RAM). But, most games said in their system reqs that 512mb would be fine, so I went ahead and bought a few titles. Just Cause 2? 15-20fps on low. TF2? no more than 10 on low. CS:Go? 15 fps on low, even less online. Mind you, I had updated my drivers, so clearly something about these games is not liking my GPU. From then on, I've been extremely cautious when buying games, because I've already easily wasted $50+ on ones that my computer SHOULD be able to run but CAN'T. My only current experience with 'downloading' games is for ones that I have on CD already, but the CD is so damaged that it won't install, which to me is okay, since I did pay money for the game years before. Hypothetically, is there any moral high ground for doing this purely to see whether the game will even run, if you delete it after you test it out?