For christs forget people... quit using the weasel word "decent". It hooks to one's expectations and can mean any goddamn thing. For all you'd care, a decent computer to you could mean a 1980s Apple III computer. Many people also refer to decent frame rate and actually mean 20 FPS average when you can bloody almost not play it like that.
You specified a laptop, for which there's far less interchangeable parts than a standard PC? You specified gaming hardware? Okay first of all, define games, because you could mean Facebook games for all I'd care. (and for the record I don't believe those count but w/e..)
Oh and god help you if you want to play something like Minecraft on high mod settings such as OptiFine Ultra, which you're going to struggle getting a full 60FPS with EVERYTHING on that mod maxed out. (ie, viewing distance, Load Far, Extreme +2048, etc) Even with something like a 690.