Hey, guys. I'm the COMPLETE UTTER MADMAN who made his GS4 run at 2.8GHz on all eight cores. Had a bit of free time last night so I thought I'd try keep it running stable... Ran the phone at 2.8GHz for five minutes running real racing 3. Here's how hot she got. Brought her back know to conservative power and she happily idled at about 1,000MHz and cooled back down to about 30/40c. These things don't mind heat, but don't put them in the microwave! PS: it gets a bit too hot to hold!