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6950XT toxic / 5600X with 750w PSU ?

dave28

dave28

dave28

Soldato
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28 Jun 2013
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What do you think guys, a 6950 XT Toxic edition with a Seasonic prime tx-750w

I seen a review where the psu shut down at 902w but i would not want to go anywhere near the limit obviously.

the CPU is a stock 5600X and i would only run the GPU as is and i would not overclock it
 
Power-p.webp


Should be fine.

tech-legend.com

Seasonic PRIME TX-750 Titanium - Power Supply Review

The Seasonic PRIME TX-750 Titanium is a great power supply which not only offers a very good performance but also has a 12-year warranty.
tech-legend.com tech-legend.com
The Seasonic PRIME TX-750 Titanium is available for approximately 260 USD or EUR, and while it is not a small price, it is one of the cheapest Titanium rated units available.
The performance is very good and makes the PRIME TX-750 Titanium one of the best power supplies I’ve ever reviewed so far. With a load of approximately 500W, the power supply maintained a stead efficiency of 94.2%.

The improved Seasonic Titanium platform uses a wireless internal design, which not only increases the reliability but also reduces the airflow restrictions inside the casing.
In terms of sound, the 135mm fan used with the PRIME TX-750 Titanium is silent, with a maximum noise output registered of 17 db(A). In addition, the fan can be turned off completely if the power supply does not exceed a certain temperature threshold.

In conclusion, the Seasonic PRIME TX-750 Titanium is a great power supply which not only offers a very good performance but also has a 12-year warranty. The only inconvenient with this power supply is the price, however, at this level of quality and performance, it is a worthwhile investment.
Click to expand...
 
Personally I'd go bigger (manufacturer recommended minimum is 850w), to try and avoid shutdowns if the power spikes are too high. From Google some other people seem to be getting on fine with 750W though, ...

If you've already got the PSU I guess you could just give it a go and see if you get any sudden power-off crashes which might be due to the PSU tripping. If your pc is stable playing a range of games then no problem!

If you haven't already got it then I'd look for an 850W / 1000W psu personally.
 
GreatAuk said:
Personally I'd go bigger (manufacturer recommended minimum is 850w), to try and avoid shutdowns if the power spikes are too high. From Google some other people seem to be getting on fine with 750W though, ...

If you've already got the PSU I guess you could just give it a go and see if you get any sudden power-off crashes which might be due to the PSU tripping. If your pc is stable playing a range of games then no problem!

If you haven't already got it then I'd look for an 850W / 1000W psu personally.
Click to expand...
I initially agreed until I realised that it's a really well rated platinum PSU with a top warranty. The PSU can deliver more than it's listed rated wattage so it's not exactly ideal but it should work.

Like, I expected the power draw of the 6950XT to be closer to the power draw of a 3090ti but it's not. It's a lot less efficient than the 6900XT but It's still relativity good.
 
If the OP already has the PSU, then as GreatAuk said, there's no real harm in trying.

But if buying a new PSU, I'd want to get more than 750W even if that is a well-made Platinum supply.

As GreatAuk already said, it's the spikes:
From the TechPowerUp review of the Nitro+, max gaming power:
vS58Kkt.png
and spikes measured every 20ms:
SYKtfEV.png
www.techpowerup.com

Sapphire Radeon RX 6950 XT Nitro+ Pure Review

The Sapphire Radeon RX 6950 XT Pure is a new addition to Sapphire's lineup that comes with a sexy white color theme. In our review, we find out that the card not only looks great, but the quad-slot cooler achieves fantastic noise levels which make 4K gaming at 60 FPS a whisper-quiet experience.
www.techpowerup.com www.techpowerup.com

Think other sites measure spikes too, for instance Igor's Lab:
www.igorslab.de

Sapphire Radeon RX 6950 XT Nitro+ Pure Review - Snow White as an unique beauty with a reserved character | Page 5 | igor´sLAB

Disclaimer: The following article is machine translated from the original German, and has not been edited or checked for errors. Thank you for understanding!
www.igorslab.de www.igorslab.de
sl8zRsk.png
So different results but a 750W still seems to close to me.

As an aside, wasn't there in one of the RTX4000 series rumours that the PCB of the next gen are pretty modest?

Even higher power consumption and no sign of better PCB with enough capacitors to help with spikes? PSU manufacturers must be rubbing their hands!
 
Yes i already have the PSU, I also have a corsair PSU but thats 760w so no better.

I should have got an 850w one really
 
dave28 said:
What do you think guys, a 6950 XT Toxic edition with a Seasonic prime tx-750w

I seen a review where the psu shut down at 902w but i would not want to go anywhere near the limit obviously.

the CPU is a stock 5600X and i would only run the GPU as is and i would not overclock it
Click to expand...
Minimum recommended is 850W, I'd personally suggest a 1000W unit. YMMV.

IIRC @JediFragger ran his 6900 XT on a 650W PSU for a while. Highly unrecommended. :cry:
 
LtMatt said:
Minimum recommended is 850W, I'd personally suggest a 1000W unit. YMMV.

IIRC @JediFragger ran his 6900 XT on a 650W PSU for a while. Highly unrecommended. :cry:
Click to expand...
I ran my 3080 FE on a Corsair TX650 and I wouldn’t do that again.

Current running it on a SF750 which I know hits a limit of about 150 watts above its rated limit.

There is a problem with running your GPU on a psu that doesn’t trigger OCP when the power draw is exceeded but I can’t remember the exact reason.
 
KompuKare said:
As GreatAuk already said, it's the spikes:
From the TechPowerUp review of the Nitro+, max gaming power:
Click to expand...
Uh the reviews i found for it showed total system draw, not the card itself. I can't see those images you on my computer but they work on my mobile but they show 528 watts but is that GPU power draw isolated or total system draw?

I posted a graph showing total system draw of 528 watts which even with a spike or two, the PSU should be fine. If the card itself is pulling 520 watts, I would be concerned about transient load.
 
W1zzard over at TPU certainly measure the GPU only (input + PCIe I believe).
Also reasonable sure that Igor does the same as these two images imply:
74swvyT.png
whereas TPU actually say it in the caption:
PId2kVo.png
Now, the question is to @dave28 is, do you intend to run this at max all out, or are you willing to play with undervolting and willing to dial things back a bit?
I suspect that even at -100W the card would probably lose around 5% or so.
 
KompuKare said:
W1zzard over at TPU certainly measure the GPU only (input + PCIe I believe).
Also reasonable sure that Igor does the same as these two images imply:
74swvyT.png
whereas TPU actually say it in the caption:
PId2kVo.png
Now, the question is to @dave28 is, do you intend to run this at max all out, or are you willing to play with undervolting and willing to dial things back a bit?
I suspect that even at -100W the card would probably lose around 5% or so.
Click to expand...


I am considering dialing it back, i really dont want to buy another PSU if i can help it
 
JollyJamma said:
Power-p.webp


Should be fine.

tech-legend.com

Seasonic PRIME TX-750 Titanium - Power Supply Review

The Seasonic PRIME TX-750 Titanium is a great power supply which not only offers a very good performance but also has a 12-year warranty.
tech-legend.com tech-legend.com
Click to expand...

Should be fine, as long as that PSU can handle some small spikes over advertised capacity without triggering OCP, if the PSU can put out up to 850w in spikes then should be good to go without issue


I can't wait till ATX3.0 PSUs start becoming available so we can stop worrying about GPU power spikes all together, I'll be upgrading as soon as I can
 
I previously ran an undervolted 3080 FE with an undervolted 5800X. The odd transient power spike made my Seasonic 650W PSU reboot my PC from time to time.

A 1000W PSU resolved my issue.
 
gavinh87 said:
How did you get on with this Dave?
Click to expand...

Seems 100% fine but i am capping the FSP to 60 and that seems to reduce power draw from what i can tell.

I was playing spiderman on 1440p max settings with 60fps cap and I think my software was telling me the GPU was using 190w which is much lower than i expected.
 
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