*Please not this is only my phone and my opinion, results may vary I have ran a few tests with Linpack for Android, free on the marketplace. My goal of this is for people to see exactly what average speeds my phone is running at given the CPU speed, and hopefully they will have an idea of how fast their phone will be with the same CPU speed and it will clear up some questions on exactly what a good MFLOP speed is. I am running Aloysius Snow found here: [ROM] Aloysius 2.0 Snow with OC, Friendstream and APP2SD (6/2/10) - xda-developers Thanks to a great dude i have JIT enabled and the updated kernal, tutorial found here: http://androidforums.com/all-things-root-eris/90874-how-remove-senseui-enable-jit.html#post859986 I ran 10 tests each at: 528 (Eris default) 710 729 748 768 806 Here are my averaged results 528-3.4566 MFLOPS 710-4.7158 MFLOPS 729-4.8542 MFLOPS 748-4.9942 MFLOPS 768-5.1346 MFLOPS 806-5.2922 MFLOPS Conclusion (this is where my opinion comes in) It is obvious that running the Eris's default 528 is going to have its limitations. But as i went from 710 to 806 it was only .5764 MFLOPS in difference, and to be honest i cannot see a big difference at all from 710 to 806. Im sure running at a higher CPU speed will shine in some areas with heavy CPU usage, but for me, it is definitely not worth the battery drain. My battery drains a lot quicker if i am running at 748+ when the phone is on and being used, not idle and not in standby. I think I will be moving back down to 710 or 729. If you are not running the updated kernal and do not have JIT enabled like in the link above, your phone will have significantly less numbers being tested at same CPU speeds as mine listed. **DISCLAIMER** some phones might crash past the 710 CPU speed, I am not responsible if your phone bricks, have a nice day!