Summary: When I purchased the Y580, it had excellent specs for the price and even a few years later it still does. As laptop graphics cards are want to do, it heats up on the exhaust and has summarily caused the left speaker to stop functioning but other than that it performs flawlessly.
Summary: Runs every game I had in mind, including black ops and bf3 and bf4! There is one drawback though - after several weeks of use, the laptop is loosing part of the its "premium" paint. It makes it look trashy.
Summary: For the price, I bought it for $900 Sept. 2012, IT'S GREAT. Now let's get real, it overheats quite easily, sometimes i'm just browsing the web and it o/hs. Quite annoying. DO NOT GET RID OF LENOVO ENERGY MANAGEMENT! If you do, the laptop will always use the on board graphics.
Summary: I wanted a powerful, lightweight laptop that could do everything from office work to running virtual PCs to gaming. Ideally, I wanted something to replace my existing 17-inch gaming laptop, but I decided to try 15.6" as a compromise, and I'm still a happy camper after 6 months!
Summary: The laptop is good for gaming when the games are optimized but the main issue is overheating there is only one vent. Idle temp is around 78c which is 150f or so. now while gaming is alot more then that. 8gb of ram isn't enough but it can be upgraded to 16gb 1600mhz ddr3.
Summary: Bought this back in February to replace my old notebook. Despite all the ominous reviews I have read online about Lenovo laptops, I haven't had a single problem in four months. The performance is smooth both in working and in gaming conditions on Windows.
Summary: I really love my lenovo y580. It plays all recent game on high settings very smooth(battlefield 3, crysis 3, tomb raider, far cry 3, ghost recon future soldier...need 4 speed most wanted....) compare to my asus g51vx I've owned.