If you buy expensive parts (like a graphic card) the PSU is NOT something you buy with a Dell/HP or with a ‘cheap’ case !
By buying through Dell/HP/cheap-case, you “save” 50 bucks max. And out of these 50 bucks, at least $30 are made from cheaper components.
Give your components the power they need : stable, protected and enough wattage.
Who is making your PSU ? (= know the factories behind the models)
=> Rule of thumb : Seasonic/Delta = good ; CWT (Channel Well Team)/some FSP = not really good
*** Fact *** More “WATTS” rarely mean more quality/stability/life expectancy. A good 400W is always better than a bad (or “fake”) 500W. Don’t overshoot too much, especially if you don’t have the budget for that.
How many watts do you really need ? (several examples listed)
=> Rule of thumb : 500/600W is enough for a modern “1 CPU + 1 GPU” rig w/o much overclocking.
“So, I determined how many watts I really need, but I don’t know which model to choose ?” Here’s a list of recommended models
=> As you can see, Antec, Corsair and Seasonic are often in the list. There’s a good reason : they’ve made several good products recently*.
- Seasonic has always made high-quality (but expensive) products,
Corsair is kinda new in the sector and needs to make its name.
While Antec had several bad products in the past and needs to get back on the scene with a new reputation.
. . .
A good PSU lasts 3 to 5 years, without causing any problem.
Paying $80-$90 instead of $40-$50 for it is not wasting your money, it’s securing your components.