450w psu for a gtx 980?

[SilentGameTestR]

Hello, i did google, but like with all this stuff there are always mix reviews plus as im looking at older tech then as you can imagine the reviews etc are mainly from back then to about 2018/19.

I dared not try out my Palit gtx 970 with the psu as thats in a system im selling and being a 2 x 6 pin model rather than 6 + 8 i kept reading, then i am sceptical about its info, but i had never seen msi AB read more than 150w and if it did then it was never above 170w i believe. Obviously the 980 is a much better card, but i suspect more power hungry?

I havent looked for any particular version, but im after one for my test bench comparisons, but this time i will be using my 450w psu, which is a Corsair CV450 which i know isnt the best, but its not the worse either plus i havent found an alternative psu yet.


[So the 980 would be in test bench 2(per sig) with no overclocking as its not an option. i believe the 2600 goes over 65w, but never more than 100w?]


Like the 970, i suspect the 980 cant do above 1080p well, so that would be the res id look at and i will be testing it in Cyberpunk 2077, Starfield, Still awakes the deep and BO6, so i dont know how much those will push the 980.

Thanks

 

[Tetras]

Hello, i did google, but like with all this stuff there are always mix reviews plus as im looking at older tech then as you can imagine the reviews etc are mainly from back then to about 2018/19.

I don't think you will get any reliable answers because the power draw is pretty much meaningless with old high-end cards and underpowered PSUs, you're just relying on it coping (..or not).

Some PSUs will handle it fine, some won't and if you're using 250 or 350 watts chances are that many of the same PSUs will cope and the same PSUs will not.

 

[SilentGameTestR]

I don't think you will get any reliable answers because the power draw is pretty much meaningless with old high-end cards and underpowered PSUs, you're just relying on it coping (..or not).

Some PSUs will handle it fine, some won't and if you're using 250 or 350 watts chances are that many of the same PSUs will cope and the same PSUs will not.

ah ok then thank you. i will put the 980 on hold for a moment then. i was looking at getting the 980 and a less performing gpu for around the 100 mark, guess ill have to do a 980 and better psu route instead

 

[pastymuncher]

Corsairs CV series are budget basement garbage psu's built by HEC and are based on a ancient design with poor quality internals. As a result of the ancient design it can only output 432w on the 12v rail. These psu's are best avoided and personally I wouldn't touch anything built by HEC who seem to specialise in budget rubbish psu's.

 

[SilentGameTestR]

Corsairs CV series are budget basement garbage psu's built by HEC and are based on a ancient design with poor quality internals. As a result of the ancient design it can only output 432w on the 12v rail. These psu's are best avoided and personally I wouldn't touch anything built by HEC who seem to specialise in budget rubbish psu's.

to be honest im not clued up on who builds the internals of whatever, i only purchased it because it was 15 quid and a Corsair and after using my other system for long periods with the various graphic cards i have which is powered by a 700w integrator 80 bronze that i picked up weeks prior @ 30 and has been problem free, i figured i couldnt go wrong with the cv450. it was never meant to power big components, just an athlon 860k and whatever gpu i pair with it, but because people talk about higher end cards like 1080ti/2080 etc being powered on a 450w i was curious if they were just lucky or the simple fact is you can. they never mentioned what psu they had, only that it had been working fine with no issues. their cpus were like 65-130w.

 

[Tetras]

but because people talk about higher end cards like 1080ti/2080 etc being powered on a 450w i was curious if they were just lucky or the simple fact is you can. they never mentioned what psu they had, only that it had been working fine with no issues. their cpus were like 65-130w.

You certainly can. The power draw of the vast majority of gaming PCs is well under 500 watts, probably more like 250-300 watts on average, but old 450 watt PSUs aren't really designed for modern cards, so they tend to trip due to the power spikes.

If you have a PSU with a design that can handle modern cards (I'd expect that to be 550 or 650, just because that's what most PSUs that aren't 10+ years old start at), you can get away with much lower wattage figures than you're supposed to be running.

In regards to: cheap PSUs, this is more complicated. With bad PSUs, even if they work and don't trip, you can end up with ripple out of spec and they may have a much shorter lifespan due to high temps (poor quality parts suffer more from high temps and have lower rated endurance).

If you're just buying this stuff to test for a week or two, it is not worth replacing a PSU that works.

 

[SilentGameTestR]

You certainly can. The power draw of the vast majority of gaming PCs is well under 500 watts, probably more like 250-300 watts on average, but old 450 watt PSUs aren't really designed for modern cards, so they tend to trip due to the power spikes.

If you have a PSU with a design that can handle modern cards (I'd expect that to be 550 or 650, just because that's what most PSUs that aren't 10+ years old start at), you can get away with much lower wattage figures than you're supposed to be running.

In regards to: cheap PSUs, this is more complicated. With bad PSUs, even if they work and don't trip, you can end up with ripple out of spec and they may have a much shorter lifespan due to high temps (poor quality parts suffer more from high temps and have lower rated endurance).

If you're just buying this stuff to test for a week or two, it is not worth replacing a PSU that works.

yeah thats fair enough. i know it isnt always about the output of the actual psu, but the 12v rail and so on. the CV450 has a single pcie cable with 2 x 6+2, so was obviously designed for something decent, but without paying for trial and error you'd never know. it wouldnt be something use to for anything too power hungry for long periods.

It would be for testing, but i was also going to sell the system once i was done with it.

I will probably end up just doing what i was originally going to do and use the corsair in my fm2 system. doesnt sound like it will be worth the risk for the testing side and the case this will be in is smaller than my portable, so i could do with a modular really.

 

[mattyfez]

I have a 480w bequiet system power 10 happily running an i5 6600k and and an rx 480 if thats any help?

 

[SilentGameTestR]

I have a 480w bequiet system power 10 happily running an i5 6600k and and an rx 480 if thats any help?

thank you, but i have sold all 3 of my graphic cards now(1070ti, 970, 480), however i will keep this in mind if i decide to still keep the psu.

i did nearly get a used gold rated modular 600w sfx silverstone earlier from a 2nd hand shop, but it was missing the all important pcie cable. they had a used a520m board for the same price(40), so i got that instead . so now ive done that, i am thinking if i replace the psu, i will see what sales come up for brand new ones or just get a 1060 6gb or something which is meant to be able to run off 300w which would be less of a concern.