Best CPU+MOBO power to power consumption ratio?

All about them.

Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee

Post Reply
rado3105
Posts: 29
Joined: Thu Oct 16, 2008 7:54 am
Location: Slovakia

Best CPU+MOBO power to power consumption ratio?

Post by rado3105 » Mon Feb 29, 2016 2:04 pm

Hi which CPU you recommend?
I am thinking of intel g1840, intel i3-4330t, G3258, amd 5350, j1900, n3700 or? I would like to get power consumption of mobo+CPU 20-40W.
Also low power consumption motherboard for them.

It will be uses as server, virtualbox with 3 virtual machines. Now there is intel celeron 847.
You do not have the required permissions to view the files attached to this post.

quest_for_silence
Posts: 5275
Joined: Wed Jun 13, 2007 10:12 am
Location: ITALY

Re: Best CPU+MOBO power to power consumption ratio?

Post by quest_for_silence » Tue Mar 01, 2016 12:44 am

rado3105 wrote:Hi which CPU you recommend?
Probably I'd try the Core i5 6500 (or maybe the G4500 whether the purchasing cost were also a factor).
Regards,
Luca

Support SPCR, use these links when you buy: NCIX, Amazon and Newegg

rado3105
Posts: 29
Joined: Thu Oct 16, 2008 7:54 am
Location: Slovakia

Re: Best CPU+MOBO power to power consumption ratio?

Post by rado3105 » Tue Mar 01, 2016 12:55 am

quest_for_silence wrote:
rado3105 wrote:Hi which CPU you recommend?
Probably I'd try the Core i5 6500 (or maybe the G4500 whether the purchasing cost were also a factor).
It consumes 65W, it is pretty enough...looking for 20-40W power consumption because of power backup...

Wild Penguin
Posts: 82
Joined: Mon Jul 01, 2013 3:30 pm

Re: Best CPU+MOBO power to power consumption ratio?

Post by Wild Penguin » Tue Mar 01, 2016 6:00 am

So your usage will be quite light, despite having 2-3 VMs ?

An important question is: What is your CPU usage pattern? I take it that the picture you included was meant to answer this :)

Don't look at the TDP, however. A while ago there was a thread you may be interested in:

Intel Core i3-i5-i7 Haswell/Skylake TDP/PassMark/Price chart

What probably means is the idle (/ish) power consumption in your case. I believe any modern desktop should consume ~60W at light usage - or less. That's what my Core I7 4790K consumes from the wall (240V here) at idle, with two DVB tuners in Linux. I believe Linux may be missing some MB specific power management features, so figures in Windows should be slightly lower - or, it's the DVB tuner(s) card, which does run quite hot. I've seen other Core i7 rig measurements elsewhere which were 10-15W less than mine.

If your usage is indeed quite light, then I believe that an MB and a CPU platform that is designed for such a workload, might achieve what you want - the emphasis being on the MB. All modern Intel (and probably AMD / whatever) CPU power usage should scale quite well with usage (however - I do find the idle power usage differences an interesting question).

What is the power consumption of your current setup?

EDIT: I confirmed my power measurements by taking fresh measurements, since it has been a while and I wasn't sure about my memory: I get 60w at idle. But because that is a bit higher than what I recall seeing elsewhere on reviews, I removed the dual tuner DVB card, and put all my mechanical hard drives at standby. Result: with Asus Maximus VII Gene + Core i7 4790K, GTX 970, SSD, 2 x mechanical hard drives (standby / spun down), optical drive and an VFD (displaying stuff quite brightly) =~50W at idle. I think that is not that bad, and probably in-line with other measurements, which I can't find for reference currently.

rado3105
Posts: 29
Joined: Thu Oct 16, 2008 7:54 am
Location: Slovakia

Re: Best CPU+MOBO power to power consumption ratio?

Post by rado3105 » Tue Mar 01, 2016 7:54 am

power consumption of my system with c847 is 20W....and the maximum I want is 40W.

5350 looks that has 3x more power than c847....so it should be good.
Or can anybody have idea for some better cpu, board for my scenario? thanks

quest_for_silence
Posts: 5275
Joined: Wed Jun 13, 2007 10:12 am
Location: ITALY

Re: Best CPU+MOBO power to power consumption ratio?

Post by quest_for_silence » Tue Mar 01, 2016 9:01 am

rado3105 wrote:
quest_for_silence wrote:
rado3105 wrote:Hi which CPU you recommend?
Probably I'd try the Core i5 6500 (or maybe the G4500 whether the purchasing cost were also a factor).

It consumes 65W, it is pretty enough...looking for 20-40W power consumption because of power backup...

First of all: check your math, it probably pulled around 32W on average, 47W peak (AC loss depends of specific PSU).
Then: check your subject, "power to power consumption ratio" does not also mean "among low performing parts".
Last but not least: a G4500 is expected under 30W averagely, under 35W peak (while being > 2x/2.5x faster than an AMD 5350, > 6x/8x than your 847).
Regards,
Luca

Support SPCR, use these links when you buy: NCIX, Amazon and Newegg

Abula
Posts: 3613
Joined: Tue Nov 02, 2004 12:22 pm
Location: Guatemala

Re: Best CPU+MOBO power to power consumption ratio?

Post by Abula » Tue Mar 01, 2016 9:31 am

Almost any CPU will be sub 20W on idle if you chose a good motherboard and very efficient PSU on low voltage, like picoPSU, even quad cores will idle below of 20W (check my CAMMI build on my signature for you to see idle on i7 4770K with picoPSU 150XT), the trick would be on load to stay below 50W, if you see the load of that build it goes close to 150W.

For you to be close to 40W on load, the highest CPU you should aim at n intel dual core around 2ghz, my i3 2100T (2.5ghz) with a picoPSU under prime95 reaches close to 50W, skylake should be better in consumption, but around 2.0ghz would be my guess that will hit very close 40W on load. But can always undervolt and underclock, for you to reach your value exactly.

To achieve this number is important that you have a very efficient PSU at low loads, like picoPSU or alike, and a good efficient motherboard, Intel was best, but now they are out of the mobo buisness, asrock seems a very good option, mechanical hdds also increase around 5W what you can accomplish.

Another CPU worth considering for your 20/40W could be the INTEL AVOTON, check the following review from servethehome INTEL AVOTON / RANGELEY POWER CONSUMPTION – REAL WORLD C2750 SAMPLES TESTED

Remeber whatever you do, get a efficient PSU for low power, else you wont reach this figures.
GameMi - Intel i9 9900K + Gigabyte Z390 AM + Asus RTX2080Ti Strix | MiniMi - Intel i7 8700K + ASRock Z370ITX + MSI RTX2080Ti
StreaMi - Intel i9 7940X + AsRock X299 Taichi + Asus GTX1080Ti Strix | WorkMi - AMD 1950X + AsRock X399 Taichi + MSI GTX1080
ServeMi - Intel Xeon E3-1230 + Supermicro X9SCM-F + 144TB | StoreMi - Intel Xeon E3 1240v5 + Supermicro X11SSM-F + 42TB | CamMi - Intel i7 4770K + MSI H81i + Blue Iris

rado3105
Posts: 29
Joined: Thu Oct 16, 2008 7:54 am
Location: Slovakia

Re: Best CPU+MOBO power to power consumption ratio?

Post by rado3105 » Fri Apr 22, 2016 12:51 pm

Which one you recommend with best ratio power/consumption?

I am thinking of i5 6500, i5 6500t,i5 6400, g3258, g4500 or?

Abula
Posts: 3613
Joined: Tue Nov 02, 2004 12:22 pm
Location: Guatemala

Re: Best CPU+MOBO power to power consumption ratio?

Post by Abula » Fri Apr 22, 2016 10:18 pm

rado3105 wrote:Which one you recommend with best ratio power/consumption?

I am thinking of i5 6500, i5 6500t,i5 6400, g3258, g4500 or?
Dual cores should reach lower, i would consider the G4400 since it even has worst iGPU, so it should idle lower, but wont be much. I have reached 17W on my 4770K on pure idle headless, and around 13W on my i3 2100T. Most (i think all) of the skylake CPUs will idle at 800mhz under windows, but having extra cores or a better gpu should give you slightly higher, up to you to decide what CPU power you need for your given tasks, for me in 4770K i did needed a quad core to handle Blue Iris, but if it was let say a file server, a Pentium G4400 will be fine, even a atom can be fine, its more into what you are trying to do.

I would suggest to decide first what CPU will be sufficient for your loads, if you are fine with a dual core or you need a quad? if you do need a quad, i think most will be the same, personally i think the i5 6500 is a very good compromise for a quad. Now if you are fine with a dual core, the G4400 seems fine, unless you benefit from the iGPU 530 that comes on the G4500. There are others CPU, even lower power, like atoms or even mobile U versions, but again i would first check how much CPU power you need on load, then decide from there.

But remember for you reach low you do need a very efficient motherboard and PSU (a brick/pico will net you the lowest you can reach).
GameMi - Intel i9 9900K + Gigabyte Z390 AM + Asus RTX2080Ti Strix | MiniMi - Intel i7 8700K + ASRock Z370ITX + MSI RTX2080Ti
StreaMi - Intel i9 7940X + AsRock X299 Taichi + Asus GTX1080Ti Strix | WorkMi - AMD 1950X + AsRock X399 Taichi + MSI GTX1080
ServeMi - Intel Xeon E3-1230 + Supermicro X9SCM-F + 144TB | StoreMi - Intel Xeon E3 1240v5 + Supermicro X11SSM-F + 42TB | CamMi - Intel i7 4770K + MSI H81i + Blue Iris

rado3105
Posts: 29
Joined: Thu Oct 16, 2008 7:54 am
Location: Slovakia

Re: Best CPU+MOBO power to power consumption ratio?

Post by rado3105 » Sat Apr 23, 2016 12:54 pm

Thanks I chose g4400.

I use pico psu.
Which motherboard you recommend for that pc, lowest power consumption. It wont use graphic card.
I prefer intel ethernets, ideally 2.

THanks

Abula
Posts: 3613
Joined: Tue Nov 02, 2004 12:22 pm
Location: Guatemala

Re: Best CPU+MOBO power to power consumption ratio?

Post by Abula » Sat Apr 23, 2016 1:35 pm

rado3105 wrote:Thanks I chose g4400.

I use pico psu.
Which motherboard you recommend for that pc, lowest power consumption. It wont use graphic card.
I prefer intel ethernets, ideally 2.

THanks
Well with pure consumption in mind, i prefer intel mobos, the bad news is they are no longer in the consumer mobo market. From what i seen, AsRock seems to be the next best, you see Vicotnik builds, and he manages pretty good idle, and most of his builds goes with AsRock.

About which... really depends on what you needs and your budget, im gonna throw some options that i would pick for the G4400,
ASRock H110M-ITX = low features and most of the time helps having less in consumption, intel nic. i usually turn off on the bios everything i wont use.
ASRock H170M-ITX/DL = if you do want dual lans, only one intel.
ASRock C236 WSI = Dual intel lans, but its a server boards a lot of times have so many features that they might or not consume more than consumer board, i really never have gone into server boards for consumption, its more for the features.

Another route you can go is with with a Atom/Celeron, they should net you lower idles, just their capacity is limited, again depends on your needs, here some suggestions, all with dual intel lans.
ASRock C2550D4I
ASRock AD2550R/U3S3
ASRock J1900D2Y
GameMi - Intel i9 9900K + Gigabyte Z390 AM + Asus RTX2080Ti Strix | MiniMi - Intel i7 8700K + ASRock Z370ITX + MSI RTX2080Ti
StreaMi - Intel i9 7940X + AsRock X299 Taichi + Asus GTX1080Ti Strix | WorkMi - AMD 1950X + AsRock X399 Taichi + MSI GTX1080
ServeMi - Intel Xeon E3-1230 + Supermicro X9SCM-F + 144TB | StoreMi - Intel Xeon E3 1240v5 + Supermicro X11SSM-F + 42TB | CamMi - Intel i7 4770K + MSI H81i + Blue Iris

Post Reply