Questions about Corsair RMX PSUs, and PSUs in general

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Delicieuxz

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There's a 2021 version of the 1000 watt RMX, and a newer one, presumably 2022. The 2021 version is being price-dumped pretty hard right now.

2021 one:
https://www.amazon.ca/CORSAIR-SeriesTM-RM1000x-Modular-Supply/dp/B08R5PH1VY/

Newer one:
https://www.amazon.com/CORSAIR-RM1000x-Certified-Modular-Supply/dp/B015YEI7LK/

Anyone know what the difference between them is, other than the more stylish sticker on the newer one?


The 1000 watt PSU is longer than lower wattage PSUs.

850 watt PSU dimensions: 6.3 x 5.91 x 3.39 inches
1000 watt PSU dimensions: 7.08 x 3.38 x 5.9 inches

Will typical PC cases fit either side just fine? Will a higher wattage PSU operate at a cooler temperature under a given same load?
 
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I didn't really notice any particular difference between the two, both are 80+ gold and same wattage and same size, so probably my guess would be very minute performance or thermal improvements. You'd really be fine with either of those two.
Typical ATX cases should fit either size just fine. Many ITX cases support ATX PSUs, but they may (and often do) require some that are relatively short, often less than 170mm (about 6.8 inches).
Higher wattage PSUs under a given same load should run cooler in theory, but there are other variables that affect that such as fan size and speed, case thermals, positioning of the PSU, etc.
 
I have the newer model here and was using it until I upgraded to the 3090Ti, but looking back I should have just kept using the Corsair in my main system. I use it as a back up now, but it was powering a 3080Ti with a 12700K with zero issues. I wouldn't hesitate to use the older or newer model as JonCZ stated. I also used the PSU in a few different mid towers without any fitment issues.
 
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Delicieuxz said:
There's a 2021 version of the 1000 watt RMX, and a newer one, presumably 2022. The 2021 version is being price-dumped pretty hard right now.

2021 one:
https://www.amazon.ca/CORSAIR-SeriesTM-RM1000x-Modular-Supply/dp/B08R5PH1VY/

Newer one:
https://www.amazon.com/CORSAIR-RM1000x-Certified-Modular-Supply/dp/B015YEI7LK/

Anyone know what the difference between them is, other than the more stylish sticker on the newer one?


The 1000 watt PSU is longer than lower wattage PSUs.

850 watt PSU dimensions: 6.3 x 5.91 x 3.39 inches
1000 watt PSU dimensions: 7.08 x 3.38 x 5.9 inches

Will typical PC cases fit either side just fine? Will a higher wattage PSU operate at a cooler temperature under a given same load?
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It's the opposite. The higher-priced PSU is actually the older version, from (I believe) 2018. And the reason why it is priced so high is that it is no longer in production in that form, and that NIB copies are very scarce. Hence the jacked-up price.

And the newer 2021 version's price on that Amazon link is actually very close to its normal selling price.
 
As an Amazon Associate, HardForum may earn from qualifying purchases.
So, EVGA Supernova 1000 G6, or Corsair RMx 1000? They're both on sale right now, at all the stores I've looked at. $189 CAD for the Corsair RMx, $179 for the EVGA Supernova G6.

They seem to be neck-to-neck in reviews. I'm in a 120v region, which makes the EVGA more palatable, as, apparently, the the Corsair is better at higher voltages (like Europe's 230v).

https://www.tomshardware.com/reviews/evga-supernova-1000-g6-power-supply-review
https://www.techpowerup.com/review/evga-supernova-g6-1000-w/

Efficiency and noise are key things I've looked at. The EVGA seems to be quieter by a tiny hair. As to which is more efficient, on average, in 115v, I think I've seen it go both ways.

E4g1e said:
It's the opposite. The higher-priced PSU is actually the older version, from (I believe) 2018. And the reason why it is priced so high is that it is no longer in production in that form, and that NIB copies are very scarce. Hence the jacked-up price.

And the newer 2021 version's price on that Amazon link is actually very close to its normal selling price.
Click to expand...

Yup. I had it backwards.
 
Delicieuxz said:
So, EVGA Supernova 1000 G6, or Corsair RMx 1000? They're both on sale right now, at all the stores I've looked at. $189 CAD for the Corsair RMx, $179 for the EVGA Supernova G6.

They seem to be neck-to-neck in reviews. I'm in a 120v region, which makes the EVGA more palatable, as, apparently, the the Corsair is better at higher voltages (like Europe's 230v).

https://www.tomshardware.com/reviews/evga-supernova-1000-g6-power-supply-review
https://www.techpowerup.com/review/evga-supernova-g6-1000-w/



Yup. I had it backwards.
Click to expand...
For me EVGA or Corsair, with Seasonic being a close third, are my first choices in power supplies, so IMO you can't go wrong with either of those choices. Just pick the one that suits your needs better which sounds like the EVGA would be a better fit.
 
I had an old EVGA PSU and it was excellent. No issues. Can't attest to or against Corsair or Seasonic.
 
Might the RTX 4000 or 5000 series require a 12VHPWR connector, and would a GPU that takes one not be functional with a PSU that doesn't have that connector? Like the current-style pins can't fit into that connector and just operate without the power capabilities-reporting pins?

I don't really care about ATX 3.0's new specs (for the stuff that's important, I wouldn't be surprised if the Corsair RMx 2021 and EVGA G6 already meet those performance standards), but now I'm wondering if it would be foolish to not wait to see what connector an RTX 4000 uses.
 
Niner21 said:
For me EVGA or Corsair, with Seasonic being a close third, are my first choices in power supplies, so IMO you can't go wrong with either of those choices. Just pick the one that suits your needs better which sounds like the EVGA would be a better fit.
Click to expand...
I thought EVGA and Corsair OEM their PSUs from Seasonic…
 
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