Corsair HX1000i vs RM1000 - which is better?

[Lindhea]

I'm buying a PSU for my new build, and are deciding between the Corsair HX1000i and RM1000. Which one is better?

 

My priorities:

1. Silence (under what load it can run passive and how audible coil whine it has when the fan does not spin)
2. Noise level when the fan is spinning
3. Performance

The price difference is insignificant. I don't care about Corsair Link. I'm planning on having the system a couple of years. Thanks!

 

PS. Sorry if this has already been posted. I CAN NOT find the search button :unsure:

[Lays]

What kind of stuff will it be running? (Out of curiosity)

 

 

If silence is your 100% main priority, buy an EVGA 1000 P2.  It can be operated passively regardless of load put on the PSU until the unit hits 45 C.

[gollum99]

HX1000i is more efficient, the rest is exactly the same.

[ImBleu]

Rm1000 is right up your alley, but honestly the 800/700 watt versions would probably do you very well unless you have some seriously beefy specs. Rather buy a AX760/AX860 and get the higher efficiency than the Rm1000/HX1000i and get 200watts+ you won't use.

[Wingfan]

Which ever you can get cheaper

[Lindhea]

What kind of stuff will it be running? (Out of curiosity)

 

 

If silence is your 100% main priority, buy an EVGA 1000 P2.  It can be operated passively regardless of load put on the PSU until the unit hits 45 C.

I'm going to run a 5960X with a Titan or two

 

I've heard a lot of good things about EVGA's PSUs', but I've not been able to find charts over what load the fan hits thus I've not felt confident that it is passive longer than the Corsair HX or RM (which will go on under 40 % load according to Corsairs webpage).

 

Rm1000 is right up your alley, but honestly the 800/700 watt versions would probably do you very well unless you have some seriously beefy specs. Rather buy a AX760/AX860 and get the higher efficiency than the Rm1000/HX1000i and get 200watts+ you won't use.

Correct, I do not need 1000W to power my system. But having much headroom will let the PSU work under less load in proportion to it's maximum, more often than not being more quiet (especially for semi passive solutions).

[Lays]

I'm going to run a 5960X with a Titan or two

 

I've heard a lot of good things about EVGA's PSUs', but I've not been able to find charts over what load the fan hits thus I've not felt confident that it is passive longer than the Corsair HX or RM (which will go on under 40 % load according to Corsairs webpage).

 

Correct, I do not need 1000W to power my system. But having much headroom will let the PSU work under less load in proportion to it's maximum, more often than not being more quiet (especially for semi passive solutions).

 

 

The load doesn't matter, I have a 1000 p2 and I've put 920 watt loads on it before with my old custom loop when I was extreme overclocking.

 

The load isn't what determines the fan speed on the 1000 p2, it's the temperature.  Once the unit hits 45C, the fan turns on at a really low RPM.    It took me 30 minutes of benching 2 780's at 1.35volts and a 3930k at 5.1 ghz 1.6volts to turn the fan on the 1000 p2 while it was in the passive mode.

[Lindhea]

The load doesn't matter, I have a 1000 p2 and I've put 920 watt loads on it before with my old custom loop when I was extreme overclocking.

 

The load isn't what determines the fan speed on the 1000 p2, it's the temperature.  Once the unit hits 45C, the fan turns on at a really low RPM.    It took me 30 minutes of benching 2 780's at 1.35volts and a 3930k at 5.1 ghz 1.6volts to turn the fan on the 1000 p2 while it was in the passive mode.

That is quite impressive! I thought the internal temperatures where more closely related to the load. Hm...

[Lays]

That is quite impressive! I thought the internal temperatures where more closely related to the load. Hm...

 

 

They are for the most part, but with really efficient PSU's, less heat is wasted on converting the power, so less heat is put into the components. 

 

I can almost guarantee you, with a 5960x+ 2 titans in your system, the fan will never turn on unless you start folding for like 8 hours straight, in which it would probably take 2+ hours of 100% load on the GPU+ CPU to turn the fan on.

 

(Basing off my own experience, the only time I've ever seen the fan turn on is when I put a ~900 watt load on it for 30 minutes)

[Lindhea]

You make a really good case here. I'm starting to lean towards the 1000W P2.

Thanks for a great answer (even if I guess it did not REALLY answer my question).