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Is my 850W Gold PSU enough for a FTW3 Ultra?

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Omoeba
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2020/09/27 23:34:53 (permalink)
ehabash1
chumeniuk
ehabash1
I would go with more. An 850 watt psu gold is only 739 watts in actual. 
 
This gpu alone will pull over 440watts. What cpu do you have? If you have something like a 10900k OC'd then its game over.
 
Also you want to leave about 10% headroom. If your constantly at the brink your psu will fail and have a short life




That's not true.  The Corsair model in question has a 849.6W output on the 12V rail.  It will actually draw more than 850W, which is the total max output, from the wall.
 
Specs are at the bottom:
 
https://www.corsair.com/u...pplies/p/CP-9020196-NA




 
Thats NOT how it works.
Think of it like a car. If you have a 500hp car, even if its a bmw and they under rate the horsepower, there is efficiency loss once it hits the crank. They is no way you can get 500hp to the wheels
 
Yes that psu is 850 watts but thats not what you will get 
 
https://www.techpowerup.c...%20at%20100%25%20load.
 
 


A 850w PSU will lose efficiency as it approaches its maximum rated power but it won't deliver less than its rated power. A non-defective 850w PSU with a 12v rail rating of 849.6w will manage to deliver exactly 849.6w or more over its 12v rail but will draw more than 849.6w from the wall to compensate for the efficiency loss.

AMD Ryzen 7 3800x
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EVGA Supernova 850 G+ PSU
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#31
rocketdoug
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/01/24 08:47:19 (permalink)
I'm not willing to chance it on a recent new build that's waiting for a suitable GPU, and once a 3080 or 3090 comes thru for me I'll get a 1000W PSU to replace the 850W that I originally installed.  On a new build it's only about $50 more to get 1000W.  If your system has already been up and running with an 850 Gold and you're just upgrading the GPU, harder decision for sure.

 
 
 



#32
jankerson
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/01/24 08:58:29 (permalink)
dmel642
I saw Linustechtips video where he said that even 850W is not enough for the 3090 but then he showed that it ranges from 350 to 375W of power consumption when overclocking. That doesn't seem so bad considering it's less than half the power limit. Am I missing something here?

What would happen if I run the 3090 on my Corsair RM 850W ATX gold Modular Power Supply and it goes above the power limit? Would it even reach the limit?

I got the EVGA RTX 3090 FTW3 Ultra which is factory OCed. I don't plan to overclock it any further.



 
The 3090 FTW3 Ultra pulls 500W.
 
You should be OK, but it might be a little tight depending.

i9 9900K @ 5.0 GHz, NH D15, 32 GB GSKILL Trident Z RGB, AORUS Z390 MASTER, EVGA RTX 3080 FTW3 Ultra, Samsung 970 EVO Plus 500GB, Samsung 860 EVO 1TB, Samsung 860 EVO 500GB, ASUS ROG Swift PG279Q, Steel Series APEX PRO, Logitech Gaming Pro Mouse, CM Master Case 5, Corsair AXI 1600W.
 
i7 8086K, AORUS Z370 Gaming 5, 16GB GSKILL RJV 3200, EVGA 2080TI FTW3 Ultra, Samsung 970 EVO 250GB, (2)SAMSUNG 860 EVO 500 GB, Acer Predator XB1 XB271HU, Corsair HXI 850W.
 
i7 8700K, AORUS Z370 Ultra Gaming, 16GB 16GB DDR4 3000, EVGA 1080Ti FTW3 Ultra, Samsung 960 EVO 250GB, Corsair HX 850W.
#33
Kevin115
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/01/24 09:03:03 (permalink)
jankerson
dmel642
I saw Linustechtips video where he said that even 850W is not enough for the 3090 but then he showed that it ranges from 350 to 375W of power consumption when overclocking. That doesn't seem so bad considering it's less than half the power limit. Am I missing something here?

What would happen if I run the 3090 on my Corsair RM 850W ATX gold Modular Power Supply and it goes above the power limit? Would it even reach the limit?

I got the EVGA RTX 3090 FTW3 Ultra which is factory OCed. I don't plan to overclock it any further.



 
The 3090 FTW3 Ultra pulls 500W.
 
You should be OK, but it might be a little tight depending.


Yes, for sure. Because this a four month old thread, and the user post this thread hasn't post back since then means this combination works fine. Please try not to top a thread like this, OK? Just let it sinks.
 
#34
kraade
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/01/24 12:35:23 (permalink)
The answer is you wont know until you try it, it should be enough but different programs do different things on different machines...It should work just fine.
I had a 750w gold that ran a 3080 just fine in everything except MSFS 2020, I went to an EVGA 850 P2 and I can run my 3080 FTW 3. now a Hybrid at 440watts
 

https://modsrigs.evga.com/detail.aspx?BuildID=44032
BECAUSE MOD RIGS Y NOT
 
#35
whisperingshadow
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/01/24 22:13:01 (permalink)
Works fine on my setup.

i7 8700k,z370 FTW, Ballistix 32gb ddr4, 3080 Hybrid ftw ultra, 2x-512gb 970 evo, Lian Li o11 Dynamixc XL, clc 280, 850 G3, z370 FTW, 27" Predator IPS Gsync
 https://www.3dmark.com/3dm/57041776?
 
Associate code for a discount for you  BGEX2DBF0D
(old/rebuilt)"RE-VGA" i7 8700k,z370 FTW, Ballistix 32gb ddr4, 1080 Hybrid, 2x-512gb 970 evo, DG77, clc 280, 850 G3, z370 FTW, 27" Predator IPS Gsync
 
(old Pc)q6600 @ 3ghz Evga 680sli win10 with 8gb Ram,60gb ssd(OS), 74gb raptor(game), 320gb sata (storage)Evga GTX 980 sc,750w PSU
 
 
 
 
#36
Dendra
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/04/30 09:24:19 (permalink)
Similar boat here. I plan to buy ftw3 rtx3080 in five years when the EU queue gets moving.

Buying 1000w over 850w seems better because an 850w would be working close to its limits and therefor less efficiently?
#37
Matsoe
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/04/30 09:33:49 (permalink)
I would not bet on 750w for the ultra. Especially with I9 intel cpu's.  
#38
D3_GX
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/04/30 10:53:21 (permalink)
The problem Linus was referring to the GPU suddenly drawing a lot of power, causing it to trip the power supply's overcurrent protection, a good 750w power supply is likely good enough for even an overclocked 3090
#39
duffeywolvin
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/05/04 13:44:56 (permalink)
Plus, you can use ClockTuner for Ryzen (CTR) and undervolt at stock speeds to give more headroom.  That's one of my weekend items (now that I have a capable MB / CPU).  I have always overclocked, but the idea of running only minor OC but also saving power is really interesting.  Especially since massive OC and framerate increases are pretty much gone.

I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the fear has gone there will be nothing. Only I will remain.
#40
DavJam1337
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/05/04 13:46:32 (permalink)
In short, yes.

Am I elite status yet?
#41
SleepyEs
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/05/09 09:03:29 (permalink)
youll be fine, my friend actually runs nearly same setup
#42
amutlaq
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/05/30 15:13:52 (permalink)
850W is enough, even with OC. Don't worry.
#43
jpender14
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/02 00:45:11 (permalink)
dmel642
I saw Linustechtips video where he said that even 850W is not enough for the 3090 but then he showed that it ranges from 350 to 375W of power consumption when overclocking. That doesn't seem so bad considering it's less than half the power limit. Am I missing something here?

What would happen if I run the 3090 on my Corsair RM 850W ATX gold Modular Power Supply and it goes above the power limit? Would it even reach the limit?

I got the EVGA RTX 3090 FTW3 Ultra which is factory OCed. I don't plan to overclock it any further.


Pretty sure it would just trip itself off but even still 850W is plenty. The manufacturer’s suggestion (in your case the 3090 has a recommendation of 850W) includes headroom above the basic power draw.
#44
Skokiaan
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/02 21:16:05 (permalink)
Yes just don’t overclock
#45
skeetlord666
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/02 22:49:33 (permalink)
yup more than enough
#46
SovMan264
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/02 22:52:39 (permalink)
I would not go any lower than 850W though
#47
PolyflagorousHoe
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/02 23:16:10 (permalink)
It'll work, but personally I feel better having 1000+ watts in my system.
#48
patrick1123
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/03 18:24:34 (permalink)
You should be fine, the only reason anyone would get 1000+w would be if you're overclocking or if you have anything else that requires a lot of power like a waterloop system
#49
bossmanbossman
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/03 19:46:49 (permalink)
You’re good
#50
G0123
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/08 19:13:36 (permalink)
850W Gold should be good! I doubt you will have any problems with it.
#51
alui07
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/06/08 19:33:35 (permalink)
Yeah, you should be fine
#52
aceroman055
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/07/04 01:37:30 (permalink)
I have now build an new setup with an rtx3090 and i9 (10900x) using two ssd and two hdd (all watercooled) and can tell by my own experience that sometimes 850w isn‘t enough during higher load (just gaming and without overclocking anything).
limiting gpu power conumption (or using not highest graphic settings) solved the problem, but I rellay will change to another PSU during the next few days
#53
ShredderZX
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/07/04 03:49:38 (permalink)
I would get a 1000W if i wanted a 3090 just to make it run better because if you let a toyota run at 100mph for 24 hours and you let a ferrari run at 100mph for 24 do you know which one will cave in first? You guessed it the toyota.. so.. with that said? Then now to the GPU you are going to run it minimum 4 hours a day gaming.. i think a 1000W would just be PERRRRRRFECT!!!
#54
ShredderZX
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/07/04 04:23:51 (permalink)
Omoeba
ehabash1
chumeniuk
ehabash1
I would go with more. An 850 watt psu gold is only 739 watts in actual. 
 
This gpu alone will pull over 440watts. What cpu do you have? If you have something like a 10900k OC'd then its game over.
 
Also you want to leave about 10% headroom. If your constantly at the brink your psu will fail and have a short life




That's not true.  The Corsair model in question has a 849.6W output on the 12V rail.  It will actually draw more than 850W, which is the total max output, from the wall.
 
Specs are at the bottom:
 
https://www.corsair.com/u...pplies/p/CP-9020196-NA




 
Thats NOT how it works.
Think of it like a car. If you have a 500hp car, even if its a bmw and they under rate the horsepower, there is efficiency loss once it hits the crank. They is no way you can get 500hp to the wheels
 
Yes that psu is 850 watts but thats not what you will get 
 
https://www.techpowerup.c...%20at%20100%25%20load.
 
 


A 850w PSU will lose efficiency as it approaches its maximum rated power but it won't deliver less than its rated power. A non-defective 850w PSU with a 12v rail rating of 849.6w will manage to deliver exactly 849.6w or more over its 12v rail but will draw more than 849.6w from the wall to compensate for the efficiency loss.




 
[font="'qarmic sans', sans-serif; font-size: 12px; font-weight: bold"] 
 
 
I actually think "ehabash1" is right
#55
TurboDew
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/07/04 05:17:27 (permalink)
ShredderZX
Omoeba
ehabash1
chumeniuk
ehabash1
I would go with more. An 850 watt psu gold is only 739 watts in actual. 
 
This gpu alone will pull over 440watts. What cpu do you have? If you have something like a 10900k OC'd then its game over.
 
Also you want to leave about 10% headroom. If your constantly at the brink your psu will fail and have a short life




That's not true.  The Corsair model in question has a 849.6W output on the 12V rail.  It will actually draw more than 850W, which is the total max output, from the wall.
 
Specs are at the bottom:
 
https://www.corsair.com/u...pplies/p/CP-9020196-NA




 
Thats NOT how it works.
Think of it like a car. If you have a 500hp car, even if its a bmw and they under rate the horsepower, there is efficiency loss once it hits the crank. They is no way you can get 500hp to the wheels
 
Yes that psu is 850 watts but thats not what you will get 
 
https://www.techpowerup.c...%20at%20100%25%20load.
 
 


A 850w PSU will lose efficiency as it approaches its maximum rated power but it won't deliver less than its rated power. A non-defective 850w PSU with a 12v rail rating of 849.6w will manage to deliver exactly 849.6w or more over its 12v rail but will draw more than 849.6w from the wall to compensate for the efficiency loss.


 
 
I actually think "ehabash1" is right


JayzTwoCents actually gives a pretty good explanation on this topic.
https://youtu.be/bUh2EZzJZRU
#56
bqmsi
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/10/19 19:29:27 (permalink)
What you just said is wrong on so many levels... The number you see on a power supply is the rated load it can supply to the components in a system. The efficiency rating is how much power it can deliver depending on how much it pulls from the wall. This applies to all reputable manufacturers.
 
A 750w bronze unit that is rated at 82% efficiency under full load will deliver 750w to your components, but will pull 915w from the wall. That's an 82% efficiency of 915. 18% lost to heat, (165w).  
A 750w titanium unit that is rated at 91% efficiency under full load will deliver 750w to your components, but will pull 824w from the wall. That's a 91% efficiency of 824. 9% lost to heat, (74w).    
 
Going from a bronze to a titanium psu will save you money from what the unit pulls from the wall, in this case you saved 91w. This is all for reference anyways as you should be running 40-60% of the psu's rating for maximum efficiency.  Take it with a grain of salt as I've leveled it at a 750w psu, you may or may not be able to find one at that rating. The efficiency is in the ballpark average, as bronze and titanium falls between 80-83% and 89-92% respectively at 100% load. Depending on the make and model.  
 
In your explanation, manufactures which slap a 850w label onto their psu that can only supply 739w to the system would be false advertising. Not to mention the confusion and frustration of consumers to why their psu rated at 850w lacks the potential to run dual 2080ti's which theoretically can draw upwards of ~360w each not including the brief random transient load spikes.  
post edited by bqmsi - 2021/10/19 19:34:20
#57
Nozler
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/10/19 20:22:06 (permalink)
Corsair 70a on the 12v rail is that a single rail not sure
 
#58
Montana.Actual
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/10/20 00:46:44 (permalink)
I had a 1000w, saw the power draw, sent the 1000w back and got an 850.
#59
rblaes_99
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Re: Is my 850W Gold PSU enough for a FTW3 Ultra? 2021/10/20 04:42:25 (permalink)
domjam
what about the connections?. dose it matter if my power supply has only 2 cables? ie each cable has 2  6 + 2 pin.  or do you need 3 cables each with a single 6+2 pin connected to the card as it takes three 8 pins?




post edited by rblaes_99 - 2021/10/20 04:45:30


#60
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