I don't know what the TDP of that processor is and that's probably irrelevant but depending on what else you have 650W cuts it very close in alot of systems.
you might be right when you can show everyone the math you used to come to that conclusion
I really hate when people do this passive aggressive nitpicking especially when we haven't been provided with the user's full system.
If you don't think that's the case simply give an example and move on.
All you had to do is point out that this guy is using a micro ATX board for starters, so it's very likely if you reasonably assume his graphics card isn't ass ~ he probably only uses around 400-500W during load.
I wish you would grow out of your passive aggressive phase and actually contribute something useful.
His PSU is also the thermaltake 650 which I think is generally poorly regarded. It's also been in use for 2-3 years.
You can indeed run a good system on a 650W PSU or even a 450W PSU but I personally wouldn't.
How you use your computer and pick your components also has a great deal to do with it.
I haven't really been keeping track because I'm waiting for skylake for my upgrade but I remember some of the newer intel processors have terrible TDP - I mean especially compared to the Sandy Bridge era. Alot of AMD processors that are commonly picked also have terrible TDP.
You might say this is a ridiculous build and I agree but like I said it really depends on how many peripherals you have and it's not that much of a stretch sometimes.
These days, it's starting to become the norm to have 1 SSD for the OS, 1 larger cheaper SSD for other things and various old hard drives that have been carried over from older builds.
Of course maybe not everybody has 5-6 hard drives but it's not that uncommon.
If you overclock then the general math is like this:
The general math is this:
CPU with overclock is ~ 300ish W
GPU ~ 160-170W
Mobo and other stuff = 100-120 W
Which also brings you close.
Many graphics cards don't even use up to 200W but they still recommend you have a pretty high watt psu.