Im looking for a gaming pc as i am new to pc gaming. I have no idea what to look for. All i want is to play total war attila without lag. I have a laptop that i use to play medieval 2 total war on, but it lags like crazy and i can't have huge battles. I don't care for ultra graphics as console like graphics will do just fine. What I care most about is to be able to have huge battles without lag. I found these pc's. I don't know if they are any good though.
http://www.bestbuy.com/site/ibuypower-desktop-amd-fx-series-8gb-memory-2tb-hard-drive-black-blue/5574076.p?id=1219143552481&skuId=5574076
http://www.bestbuy.com/site/cyberpowerpc-gamer-ultra-desktop-amd-fx-series-16gb-memory-2tb-hard-drive-black-blue/4280704.p?id=1219738841788&skuId=4280704
http://www.bestbuy.com/site/cyberpowerpc-gamer-xtreme-desktop-intel-core-i7-8gb-memory-1tb-hard-drive-128gb-solid-state-drive-white-blue/4294518.p?id=bb4294518&skuId=4294518
http://www.bestbuy.com/site/ibuypower-desktop-amd-fx-series-8gb-memory-2tb-hard-drive-black-blue/5574076.p?id=1219143552481&skuId=5574076
http://www.bestbuy.com/site/cyberpowerpc-gamer-ultra-desktop-amd-fx-series-16gb-memory-2tb-hard-drive-black-blue/4280704.p?id=1219738841788&skuId=4280704
http://www.bestbuy.com/site/cyberpowerpc-gamer-xtreme-desktop-intel-core-i7-8gb-memory-1tb-hard-drive-128gb-solid-state-drive-white-blue/4294518.p?id=bb4294518&skuId=4294518