Started by WAS, November 15, 2020, 02:57:35 pm
Quote from: Dune on November 16, 2020, 08:26:04 amWhat would energy use in such a machine (like a 3950x) be anyway when idling? Any idea?
Quote from: WAS on November 16, 2020, 12:11:29 pmIt should idle lower than the base clock speed. My 2600 is 3.4ghz with a boost of 3.9ghz, and idles at 2.2ghz. system uses around 120-150watts idle keeping the fancy lights off helps keep it down to 120 watts.
Quote from: KlausK on November 16, 2020, 12:33:56 pmThe 750W is the maximum Watt Power the power suplly can deliver - in theory.How much the components of a PC actually consume depends on various factors.Are they in idle/sleep mode or are they under full load.One might think it does not make a big difference but, look at the numbers over a yearand you`ll be surprised how much money you could spend.For example:Let`s say the pc has a Watt power of 450 W over a 8 h working day.The price for 1 kWh is about 25 ct..That makes 4kWh per day = 0.90 €Per year this is 1314kWh = 328.50 €This is for 365 days. A little bit too much perhaps, but the workhours of your pc might be much higherbecause of rendering over night or during weekends. So this is a quite ok calculation to work with.This is about what a Gaming computer with a multicore CPU, fast RAM and a graphic card with 8GB VRAMwould need on average it seems when it is under high load. I have read that somewhere when I was building a new computer in 2017.The Video card is the one with the highest power consumption.If you get a certified power supply ("Gold" or "Platinum") you can be sure it is efficient under varying circumstances.The efficiency of a power supply unit should be above 90%, I think. The smaller lower power consumption over the year will show.Get something that fits your components well, not too small and not too big in terms of Watt power it can deliverand you are on the safe side. Just look at the numbers of the components, add them up and you have a rough estimateabout the max power consumption. All the other components like monitors, hdds, your router, printer whatever are not even taken into account...So, I think it`s fair to say, I guess, that spending a little more time and perhaps money to get well built componentswill save you money in the long run.Get a wall socket power meter. They can withstand a power consumption of about 2000 Watt very often.Which should be enough for a socket strip where your computer sits in. Over here you can rent them from your power supplier.Or buy one in a home improvement shop or something like that. Nice gimmick To get a feel for the money you spend on power there are website tools that let you calculate power consumption.CHeers, Klaus
Quote from: KlausK on November 16, 2020, 12:33:56 pmThat makes 4kWh per day = 0.90 €Per year this is 1314kWh = 328.50 €
Quote from: Dune on November 17, 2020, 05:03:03 amThanks for your comprehensive calculation, Klaus. Just over €300/year wouldn't even be that bad. Most of the time it would just be changing variables in TG (or other software) anyway, no hard rendering, so a machine would probably use much less that 450W most time.Yes, I think energy is more expensive in Europe (like petrol), we're paying quite something too.