How many watts do I need? 2.0 (Intel 10/Nvidia 3000 series update)

[none77]

On 3/26/2020 at 10:18 PM, porina said:

The thing about TDP is that somewhere around Skylake era the maximum power consumption started deviating from the TDP rating. The definition of TDP hasn't changed, but it has diverged from maximum power. Also note that Intel doesn't regard exceeding TDP as out of spec, doing so by itself is not an overclock. More commonly cheaper manufacturers like the Dells and HP of the world will typically skimp on the cooler and actually have to limit to TDP. Recently on some Intel systems I've started turning off turbo, so it does run at base clock, but the power efficiency outweighs the raw performance for my use cases.

 

I don't know about historic AMD's side, but certainly on Zen 2, they behave similarly. For example 65W TDP parts are at stock limited to 88W PPT. The direction they're going is less fixed clocks, and more running at best clock for a given power limit.

 

While I don't have any way to check, I suspect both sides are able to report currently used CPU power to a reasonable degree. It just simply isn't TDP though.

The TDP for intel CPU.

"Thermal Design Power (TDP) represents the average power, in watts, the processor dissipates when operating at Base Frequency with all cores active under an Intel-defined, high-complexity workload. Refer to Datasheet for thermal solution requirements. “

 

Lets take i7 10700k.

Processor Base Frequency 3.80 GHz

Max Turbo Frequency 5.10 GHz

So the TDP is based on the 3.80GHz, that why you got real power a lot more than the TDP.

The time for the turbo in theory is rather small, most of the boards pass that to maximize performance.

https://www.gamersnexus.net/guides/3389-intel-tdp-investigation-9900k-violating-turbo-duration-z390

[YT_DomDaBomb20]

Does a 1600 really use more power than a 1700 (Ryzen) it says 80 vs 83w (I think)

[lorenznoob]

Hi guys,

 

how would i know if my PSU can still handle the load? is there any app or tool that i can use?

 

i just used the calculator it says i only need 510w on my unit, not sure if that was ok.

 

specs:

Seasonic m2 evo 520w full mod

 

i7 6700

b150 night elf

x62 kraken + 140mm aer rgb

2070s triplefan 6+8pin

1tb hdd

240ssd

corsair pro 2x8 3200

s340 case + 2x120mm stock fan

 

thank you guys.

 

 

[LukeSavenije]

3 hours ago, lorenznoob said:

specs:

Seasonic m2 evo 520w full mod

wattage, yes

 

quality, no. M12ii (which I assume you mean here) uses the decade old platform that's also used on S12ii. I would recommend replacing it for a system like that with a good ~550w unit

[lorenznoob]

4 hours ago, LukeSavenije said:

wattage, yes

 

quality, no. M12ii (which I assume you mean here) uses the decade old platform that's also used on S12ii. I would recommend replacing it for a system like that with a good ~550w unit

thank you sir, will change it asap

[YT_DomDaBomb20]

10 hours ago, lorenznoob said:

thank you sir, will change it asap

i reccomend a cx unit from corsair, its cheap(er) compared to other units, but reliable

[Ankerson]

On 5/11/2020 at 3:12 AM, LukeSavenije said:

with that said, the numbers I provide are under full stress load, a load 99% off the people don't reach unless they're trying to run prime95 and furmark at the same time.

 

I did that with the system in my sig...

 

Pulled over 660W from the wall...

 

Seen up to 550W or so give or take when gaming, depending on the game...

[Ankerson]

On 7/29/2020 at 10:51 PM, MrBrightSyde said:

A quality 450w is all you need for gaming, but if your 9900k and 2080ti are both under full load (from applications like folding@home), it's going to be drawing about 500w on stock settings, 550w with the 9900k clocked at 5.0Ghz all-core. So a quality 650w would give you 100w of headroom (minus whatever wattage your storage and RAM draw, but it's minuscule) in the worst case scenario.

 

My system actually pulls up to 550W give or take from the wall when gaming.. Depending on the game.

 

MAX I saw is 660W+ from the wall stressing it out. FURMARK and Prime 95 both running...

 

650W is really too small because 550W is 85% of 650W and less than the 660W+ total power draw of the system. So 650W is out and not recommended.

 

So figure in overprovisioning (headroom) of 30% to 35% that's 742W (750W) Still puts you out of that sweet spot wise for the PSU, 550W is about 73% of 750W.....

 

Then future upgrades you could add maybe another 100W or so... 850W wouldn't be out of bounds, 550W or so is still 65% of 850W.

 

So you could do 30% to 35% over the 660W+ total power draw ... Would give 850W (30%) again....

 

 

So recommended PSU Wattage would be 750W to 850W.... For the system in my sig.

 

 

 

 

 

Disclaimer: Data and recommendation is for the system in my sig and based on real actual power draw from the wall using a Kill Watt. 

 

System specs:

 

i9 9900K @ 5.0 GHz, NH D15, 32 GB GSKILL Trident Z RGB, AORUS Z390 MASTER, EVGA RTX 2080Ti FTW3 Ultra, Samsung 970 EVO Plus 500GB, Samsung 860 EVO 1TB, Samsung 860 EVO 500GB, ASUS ROG Swift PG279Q 27", Steel Series APEX PRO, Logitech Gaming Pro Mouse, CM Master Case 5, Seasonic Prime Titanium Ultra 750W. 

 

 

 

 

[none77]

You should multiple the load with efficiency, than divide.

550*0.92/650=78%

[Ankerson]

1 hour ago, none77 said:

You should multiple the load with efficiency, than divide.

550*0.92/650=78%

 

 

The beauty of using a Titanium rated PSU is I didn't have to worry about that much, at ~96% efficiency the numbers would only really change by a very small amount.... If I was using a Gold Rated unit I likely would have done that however around 10% would make more of a difference, 4% not so much.....

 

20W or so or there doesn't matter all that much. 

 

Not splitting hairs here, nor should I be.... Reason for the 100W range of recommendations between 750W and 850W.. Could use either one and be fine.

 

Always error on the side of caution, round up, not down.

 

The ideal efficiency range is in the 60% load range or so depending on the actual PSU, so that will and does change depending... So that is really something to look at when researching the PSUs you are thinking about. I have seen it as low as around 40% to as high as 65%....

 

So like I said splitting hairs isn't the purpose here, way too many variables....

 

Now with the Corsair HX 850W that I have coming and my gaming load it puts the system right in the ideal efficiency range of the PSU as an example as per Corsairs graphs for the HX series. And the Platinum HX 850W will be running more efficiently than the 750W Prime Titanium is now due to the load wattage. 

[Fasauceome]

 

diggin this vid. glad my personal results loosely line up with this.

[Kayath]

Hello I have ryzen 3950x and 650w platinum seasonic psu. Im guessing that should be enough for rtx 3080 with 350w consumption.?

[OrionFOTL]

1 minute ago, Kayath said:

Hello I have ryzen 3950x and 650w platinum seasonic psu. Im guessing that should be enough for rtx 3080 with 350w consumption.?

Nobody knows how much power the graphics card really consumes.

[Kayath]

1 minute ago, OrionFOTL said:

Nobody knows how much power the graphics card really consumes.

Sure but that 350w was on nvidia pp slides. Would they just throw some random number there. 

[OrionFOTL]

1 hour ago, Kayath said:

Sure but that 350w was on nvidia pp slides. Would they just throw some random number there. 

Yes, they actually would. Not the first time, either.

[LukeSavenije]

10 hours ago, Kayath said:

Hello I have ryzen 3950x and 650w platinum seasonic psu. Im guessing that should be enough for rtx 3080 with 350w consumption.?

as far as things currently look to be, it should be enough

 

but as Orion already pointed out, we don't have a magic crystal ball to recommend for the future

[raceboy5512]

what size psu should I get?

Specs are as follows

Xeon w3550 @ 3.6ghz

24gb 1600mhz ddr3 ram

asus p6t

evga gtx 970 sc

500gb ssd

1tb ssd

bunch of fans

I can only spend up to $85 on a power supply

[HelloSir]

I'm making a non-gaming PC, mainly for machine learning applications. I have to buy the components from a specific brochure from work and have a fixed budget. I need to know whether to upgrade the PSU from 750W to 1000W. My specs are:

 

Intell Xeon 2265 CPU

NVIDIA Quatro RTX 4000 8GB

64 GB RAM (ECC)

 

If I can get away with the 750W PSU, that would be great. Another optional extra is a memory cooling unit - is that worth it?

[TexasSwede]

I just measured the power consumption of my new build:

Motherboard: Asus Prime B360M-C

Processor: i5-9600K

Memory: 32GB DDR4-3200 (running at 2400)

Storage: Samsung 970 Evo 1TB

Case: Thermaltake Core V21 (with 200mm front fan)
CPU cooling: Arctic Liquid Freezer II 280 AIO

Additional cooling: Arctic 140mm fan

WiFi card: TP-Link AX3000

Power Supply: Corsair RM650x

I am using the built-in graphics, running in 4K resolution through HDMI.

 

While running just Windows 10, the whole system consumes around 50W (+-5W).

When I use CPU-Z to stress the CPU to 100% on all cores, the power consumption increases to 105W.

 

So even when I later add a good graphics card (e.g. RTX 3070, which is using 220W), I should have plenty of spare power. 

 

[ParbaZ29]

Any recommendation power supply for this build 

-Ryzen 3 3200g

-Gigabyte B450M DS3H

-Asus Tuf X3 GTX 1660 SUper

-T-Force Vulcan 16gb (2x8)3200mhz

-WD 1tb Hdd 7200rpm

-Nvme m.2 ssd 256gb

-1x120mm fan

-1x80mm fan

Please help me Thanks

[Fasauceome]

Are we looking at getting 30 series numbers soon?

 

Or are we sitting on a mega update for RX 6000 and ryzen 5000 as well

[LukeSavenije]

10 hours ago, Fasauceome said:

Are we looking at getting 30 series numbers soon?

 

Or are we sitting on a mega update for RX 6000 and ryzen 5000 as well

I've honestly been waiting on clarification for peak power... but I should be able to release it eventually

[Ankerson]

10 hours ago, LukeSavenije said:

I've honestly been waiting on clarification for peak power... but I should be able to release it eventually

 

With the 3000 series it varies quite a bit depending on the actual cards in question..

 

Could be from 340W to 500W depending on the actual card.

[LukeSavenije]

more ryzen and navi will be added once I've got the numbers

 

for now, Intel and Nvidia with theirs have been added

[Ankerson]

On 11/1/2020 at 8:46 AM, LukeSavenije said:

more ryzen and navi will be added once I've got the numbers

 

for now, Intel and Nvidia with theirs have been added

 

 

I saw that, you didn't play around with it either, smart move.