It seems stable in 3DMark11, nice and smooth and been running benchmarks back to back for a few hours now. I know that 1200mhz is a good number for my core because I could almost get it to work at stock voltage when the laptop was brand new (see first page, 2nd post). It would run through the benchmark but would crash back to desktop if I run it on a continuous loop in demo mode. I used to run the laptop continuously at 1155/2555 using Nvidia Inspector back when I was single GPU playing Far Cry 3 for 4-5 hours straight on the weekends. Don't really see the need to right now since all I'm playing is Simcity 5 but with the overvolt bios, 1200/2600 should be stable 24/7 if I wanted to run it that way. The key is this new PS, that 120w PS just wasn't cutting it. Also, seems like the 3632QM runs quite a bit cooler so I don't get into any real temp issues. I've also replaced the thermal grease (AS5) back in January but seemed like that actually ruined my temps as I was running cooler out of the box. I'll play around with it some more and report back, only got the PS through Amazon yesterday. I have no doubt that you'll be able to hit 1200mhz out of the box because the 750m runs a higher stock voltage. I've had this thing since the beginning of December and it's been a love/hate relationship. Overall, still love the piece of but again, wish the execution was even half as good as the concept. Can't wait to get my new msata ssd in the mail, this harddrive is painfully slow.