it is late, but feel free to run the numbers yourself. If use your PC for 8 hours a day.that is $2.43 per year or around 20 years to break even. 8W at 24/7/365 at 10c /kwh = 2 cents per day = $7.30 per year or around 7 years to break even. Not going by the sale price, you are looking at difference of $50 from the 650W most recommended versus an 850W unit to be in that 50% range. The difference between pulling say 400W and 408W by being in the 50% sweet spot or somewhere outside of it, the difference in efficiency/power (2% say). but for mainstream single card single CPU for an average user.I implore you to do the math. I mean if you are thinking HEDT and overclocking the tar out of it, sure. I agree with a top tier PSU, but to pay an additional premium of buying a unit that much oversized, it won't make it up over its lifetime unless you some distributed project 24/7 for years. I don't doubt you know a lot about building PCs and what not, but I think you've been reading some wrong info on PSUs, or you're using some sub-par hardware. it can do 700W, but is only sold as a 650W unit, as this is how the manufacturer can give a 10 year warranty and not have to worry about too many returns. You never hear of this in reviews these days. Things have improved a lot since then and modern PSUs works quite different from what they did some years ago.Įfficiency curves are getting flatter and flatter and even a decent mid-range PSU is vastly better than a five year old high-end PSU today.īack in the days I had PSUs that damaged the test equipment, PSUs that would vibrate around the table at full load (thanks to passive PFC) and all sorts of weird shit. (As a side note, a competing publication at the time gave an award to a PSU that was 99% efficient, turns out it was the PFC number they thought was power efficiency). I actually used to do PSU group tests, admittedly many moons ago, but I was one of the first people doing them. There's a lot of flawed information on the internet as well and reading about things is only half of it. Don't spread bad information, it's not helpful for anyone. And you have a lot of flawed knowledge by the look of it.
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