I'm assuming it comes with an i5-450M, HD 5650, and 1366x768 screen. If so, any laptop with those three specs will play those games.
The thing to note, of course, is the fact that the TimelineX series' build quality is sub-par. I've read numerous complaints about mushy keyboards, problems with the screen / bezel warping, etc. If specs are all you care about, the TimelineX offers a great package for not a lot of cash. If you want your computer to last a while and take some abuse, I suggest buying something other than an Acer (or low end Dell / HP / MSI / Gateway). That's the primary reason why I shelled out extra from my Envy 14 when the TimelineX had almost the exact same specs for a few hundred less. Of course, when you consider that my Envy 14 has one of the best screens available in a consumer notebook, a great keyboard, solid metal chassis, etc., the few hundred extra is perfectly justifiable IMO.
I don't know why CurseTheSky keeps posting this FUD, maybe to try to justify his own purchase? No need, as the Envy is "not that bad". Sure, HP always rates at the bottom of the list for quality, (see squaretrade) and is the most unreliable brand out there, but at least the Envy "had" a good screen for a while.
The TimeLineX series is not sub par, and is a step up from the normal Acer line. Because the TimeLineX is not down clocked like the Envy is, it plays games much better than the comparably equiped Envy. No, not all i5-460m with HD5650's perform the same. In that class, Envy is below par, while TimelineX is normal. At notebookreview forums, many Envy owners have returned their unit and switched to one of the gaming TimelineX models, and are thrilled with the "upgrade".
I bought the 13.3" version of the TimeLineX and it was so great that a few weeks later I bought the 14" 4820TG to go along with it. This is from a Tech that works on laptops and other PC's for a living, not from someone just reading about them. Been working on them from the days of DoctorDos, before MS was formed. So consider this expert advice.
BTW, that 4820TG from newegg at $750 scored:
3dm2k6 = 10124 (750/1200), sm2-3857, sm3-4791, cpu-2979 (cpu-86, gpu-72c max)
You should google these laptops for more info.
notebookreview dot com is another website with good info, and owners of Envy and TimelineX are posting good and bad things about both, as well as other laptops. Nothing is perfect, but if you know what to expect before purchase, you will not be disappointed.
When looking at info, make sure you read "current info". Changes are always occurring, such as the Envy changing screens to low end, and the TimelineX switching to faster CPU's. (The following review is 2 days old.)
Here is a current review of the 3820tg, which is the same true specs (not downclocked to make it work like the Envy), and same build quality as the 4820TG.
http://www.notebookcheck.net/Review-Acer-Aspire-3820TG-Subnotebook-i5-HD5650.38666.0.html
Get one. You will be very happy you did.