Understanding actual energy usage of CPUs

[R3X]

Can check tonight this is just the cpu draw will fire up a load of windows and run a youtube


gpu power consumption I very rarely look at but will check as well

cheers, I am guessing you probably will hit around 70-80 watts roughly (entire pc) with 8 browser tabs and an 4K YT video playing.

I just double checked my 3700x and its hitting around 14-16 watts with 10 browser tabs and 1 4K 60fps playing, when nothing is running and more idle ie nothing running and just sitting in desktop its 2-3 watts for the cpu alone.

GPU power draw on my Geforce 1650 still remains very little 5-7 watts.

 

[R3X]

My most efficient 9th gen system uses under 15 watts idle (using a standard ATX psu and no graphics card), but compared to my gaming system (30 watts idle) we're only talking about a tenner for the 15 watts (for 8 hours use per day @ 25p kwh).

That is mighty impressive, 15 watts idle, is that the entire computer system running? How about when you run 10 browser websites and an 4K video?

 

[Tetras]

That is mighty impressive, 15 watts idle, is that the entire computer system running? How about when you run 10 browser websites and an 4K video?

It is whole system from the wall (not including monitor obviously).

10 websites and
(this is from youtube)
1080p/60: 20-30 watts
1440p/60: 25-35
4K/60: 45-60

It has high CPU and GPU usage with 4K (over 60% / 50%), not sure if that's a codec issue, I don't play 4K video normally.

 

[Game]

seems to go between 12-18w only ran a 1440p youtube fullscreen and movie mode or what ever they call it

gpu is using 15-21w rx6700xt no way for me to monitor from the wall but run with two m2 drives and nothing else

 

[sandys]

It is whole system from the wall (not including monitor obviously).

10 websites and
(this is from youtube)
1080p/60: 20-30 watts
1440p/60: 25-35
4K/60: 45-60

It has high CPU and GPU usage with 4K (over 60% / 50%), not sure if that's a codec issue, I don't play 4K video normally.

I am looking into the next gen AMD and Intel mini pcs due this summer/fall to save electricity cost, hopefully an 8 core mini pc that consumes 25-30 watts
for basic surfing, Ms office, YT etc

My NAS which is a full PC system draws ~40w (33w excluding IPMI which is basically another mini system on my mobo ) from wall watching 4k youtube in fact its only a w or two from idle, which I think is good, considering the board has IPMI module for remote control that takes 7w alone Plus it has 12 drives, 7 NICs, 8 fans (running low) and watercooling pump on CPU ( because it was running my 5950x at one point) obviously when drives spin up or CPU gets load it'll spike but even maxing 12 threads it doesn't top ~90w I do cap its power in the BIOS mind, I'm sure it could pull loads more.

it has an x570 chipset, 64Gb Ram and a Ryzen 4650G (Basically a Ryzen 3600 with Vega iGPU ) if I took out a load of hard ware and ran on a b450/b550/b520 etc reckon it'd drop that 50%. If it had a Ryzen 5xxxGE it'd be even better.

I previously had a Ryzen 35w 4350GE on a B450 and it was around 20w but I needed more flexibility from my NAS/Server.

One of those little Lenovo think centres with a 5xxxGE would probably kill it for your use case and still be powerful.

 

[R3X]

seems to go between 12-18w only ran a 1440p youtube fullscreen and movie mode or what ever they call it

gpu is using 15-21w rx6700xt no way for me to monitor from the wall but run with two m2 drives and nothing else

cheers still pretty impressive, I need to work on getting my watts down

 

[R3X]

It is whole system from the wall (not including monitor obviously).

10 websites and
(this is from youtube)
1080p/60: 20-30 watts
1440p/60: 25-35
4K/60: 45-60

It has high CPU and GPU usage with 4K (over 60% / 50%), not sure if that's a codec issue, I don't play 4K video normally.

Impressive, yeah codecs can be tricky can effect power watts used you may wish to set up your media player with LAV filters and use D3D 11 playback this way it goes through your gpu decoding wise, should help with 4K playback more so.

Youtube is a big culprit since the popular videos in 4K are AV1 codec which only 11th gen Intel cpus and Nvidia 3x gpus support, I get a good 10-15 watts higher usage since don't have the right hardware so my cpu kicks in to do it in software so uses more juice.

Computers are so tricky, slightest thing can increase power watts be it software, hardware or not configured right, still learning half of it.

 

[R3X]

My NAS which is a full PC system draws ~40w (33w excluding IPMI which is basically another mini system on my mobo ) from wall watching 4k youtube in fact its only a w or two from idle, which I think is good, considering the board has IPMI module for remote control that takes 7w alone Plus it has 12 drives, 7 NICs, 8 fans (running low) and watercooling pump on CPU ( because it was running my 5950x at one point) obviously when drives spin up or CPU gets load it'll spike but even maxing 12 threads it doesn't top ~90w I do cap its power in the BIOS mind, I'm sure it could pull loads more.

it has an x570 chipset, 64Gb Ram and a Ryzen 4650G (Basically a Ryzen 3600 with Vega iGPU ) if I took out a load of hard ware and ran on a b450/b550/b520 etc reckon it'd drop that 50%. If it had a Ryzen 5xxxGE it'd be even better.

I previously had a Ryzen 35w 4350GE on a B450 and it was around 20w but I needed more flexibility from my NAS/Server.

One of those little Lenovo think centres with a 5xxxGE would probably kill it for your use case and still be powerful.

That is quite the set up, I have been considering the nas route also but still in several minds about it still. I recently done some testing with my Nvidia shield for example with plex and 4K HDR playback, I hit 4.7 watts. Plex server on PC running so could be roughly 80 watts there alone.

I could get one of those lenova think centres, they are very nice but am looking for something with AV1 support, ie Radeon 6x apus or Intel 12th gen apus instead. Might look at an USB mass storage for hdds that might give me better control of power wise or a Nas build from an Nuc type mini pc perhaps.

You also have 2 bay nas units consuming 13 watts with disk access also, so much to consider.

 

[Game]

cheers still pretty impressive, I need to work on getting my watts down

I have all cores locked at 4ghz don't know if that would lower my energy usage or if boosting up and down would use more

I used to run a 2bay Nas to store all my torrent downloads but removed it when I redecorated the kitchen and I very rarely download anything other than 3d printer stls now

 

[R3X]

I have all cores locked at 4ghz don't know if that would lower my energy usage or if boosting up and down would use more

I used to run a 2bay Nas to store all my torrent downloads but removed it when I redecorated the kitchen and I very rarely download anything other than 3d printer stls now

I also use to run my PC at full max also but stopped few months ago, now I have everything set to sleep monitor and Pc wise every 5 minutes in power control old menu, in new power control menu slider is also set to best energy savings.

I can certainly see through Ryzen Master tool it though its shaving a few watts off not having all 8 cores running at full whack.

It might be worth you trying to enable power saving too.

I think most people won't bother for now, since if they are running their entire Pc on less then 100 watts its equivalent to that old 100watt light bulb they probably feel it won't make any difference, guess some truth to that still. That might change when people's electricity bill goes up by 50%!