power consumption 8086k 2080ti

[TechBruhE]

I just got a UPS, and it has a display to see power consumption and other things. I've always thought my pc was pulling a ton of power from the wall according to power supply calculators online, well under load I was surprised it doesn't even hit 500W, with 2x hdd's, 3x ssd's, 4x 120mm fans, the highest I've seen it hit is like 450ish watts, but that also includes my monitor, 2.1 speakers, and a 5 port gigabit network switch (and an alarm clock but that probably pulls like 1W).
just very surprised it pulls half of what any psu calc online says it pulls under load. idling it pulls around 130W.

[seon123]

7 minutes ago, TechBruhE said:

I just got a UPS, and it has a display to see power consumption and other things. I've always thought my pc was pulling a ton of power from the wall according to power supply calculators online, well under load I was surprised it doesn't even hit 500W, with 2x hdd's, 3x ssd's, 4x 120mm fans, the highest I've seen it hit is like 450ish watts, but that also includes my monitor, 2.1 speakers, and a 5 port gigabit network switch (and an alarm clock but that probably pulls like 1W).
just very surprised it pulls half of what any psu calc online says it pulls under load. idling it pulls around 130W.

PSU calculators are useless and overestimate by a ton. They are made to sell high wattage PSUs, not to help consumers. That's how they make money.

When measuring the power draw from the wall, you have to also take into account the efficiency loss of the PSU. That's roughly 10% for somewhat decent PSUs.

 

Power draw estimates that are more accurate than PSU calculators include: GPU TDP + 70W, dividing the PSU calculator's estimate by two, and random.org.

Edited November 17, 2019 by seon123
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[TechBruhE]

3 minutes ago, seon123 said:

PSU calculators are useless and overestimate by a ton. They are made to sell high wattage PSUs, not to help consumers. That's how they make money.

When measuring the power draw from the wall, you have to also take into account the efficiency loss of the PSU. That's roughly 10% for somewhat decent PSUs.

 

Power draw estimates that are more accurate than PSU calculators include: GPU TDP + 70W, dividing the PSU calculator's estimate by two, and random.org.

yeah, that's what im saying, its crazy, according to the display, not only my pc, but my entire setup only pulls like 450W under load.... from the wall....

[Fasauceome]

4 minutes ago, TechBruhE said:

yeah, that's what im saying, its crazy, according to the display, not only my pc, but my entire setup only pulls like 450W under load.... from the wall....

Yes that's normal. My own rig, an 8086k and titan, pulls 400 in a full synthetic stress test using aida64. 

 

Most people expect to have to use an 850 watt PSU for a high end rig when they only need half that 

[jones177]

With my FTW3 Ultra 2080 ti the highest draw that I recorded was 387 watts. I get these peaks usually when it goes over its 124% power target.

 

Different types of 2080 tis have different power draws.

Here are my two.

 

Here is the 387 watt reading.

The reading is under Target.

 

As for i7 8086ks my two at 5.1ghz consume about the same power than my i7 8700k did with 4.7 on all cores so it depends on the efficiency of the silicon.

I don't need to delid and they run cool on air so I am happy.

 

[TechBruhE]

On 11/17/2019 at 12:59 PM, jones177 said:

With my FTW3 Ultra 2080 ti the highest draw that I recorded was 387 watts. I get these peaks usually when it goes over its 124% power target.

 

Different types of 2080 tis have different power draws.

Here are my two.

 

Here is the 387 watt reading.

The reading is under Target.

 

As for i7 8086ks my two at 5.1ghz consume about the same power than my i7 8700k did with 4.7 on all cores so it depends on the efficiency of the silicon.

I don't need to delid and they run cool on air so I am happy.

 

yeah, the point of my og post was that the actual readings from the wall aren't as high as we're lead to believe... get a wall meter or a ups, you will probably be surprised your system probably isn't drawing as much power as you think.

[jones177]

12 hours ago, TechBruhE said:

yeah, the point of my og post was that the actual readings from the wall aren't as high as we're lead to believe... get a wall meter or a ups, you will probably be surprised your system probably isn't drawing as much power as you think.

I have a wall meter.

My max use is just under 600 watts.

 

Benches like Heaven don't use much power since they basically use one CPU core.  Fire Strike and Time Spy are about the same with the exception of the CPU test and then the GPU is not doing much. I have never seen anything much past 450 watts from the wall in benches. 

 

On games it is about the same depending on the amount of cores used. 

Things go crazy only with games like Assassins Creed Odyssey that use about all the CPU. In that game I average 550 watts with peeks close to 600. 

 

The reason why it is crazy is because the i7 8086k at 5.1ghz(1.34v) only uses 150 watts max. That with the FTW3 Ultra is only 537 watts so the rest of the power used must be the motherboard VRMs.  

 

Buying a wall meter gave me more questions than answers.