Corsair RM650x PSU Review

Another Corsair PSU is in the lab, commanding our attention. We already reviewed the RM750x and RM550x, so we couldn't leave out the RM650x. It promises the same high performance as its siblings, along with super quiet operation.

Tom's Hardware Verdict

The RM650x is a high performance PSU featuring great build quality and a very silent operation. It is offered at a fair price and the ten-year warranty is the cherry on top. Its major problem seems to be the harsh competition from EVGA's similar priced offerings, especially the 650 P2 model.

Pros

  • +

    Full power at 49°C

  • +

    Ripple suppression

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    Load regulation

  • +

    Performance with transient loads

  • +

    Silent

  • +

    Compact dimensions

  • +

    Quality caps

  • +

    Fully modular

  • +

    Hold-up time

  • +

    Warranty

Cons

  • -

    Single EPS connector

  • -

    Short distance between peripheral connectors

  • -

    No bypass relay in the inrush current protection circuit

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Corsair RM650x Power Supply Review

The most popular power supplies among enthusiasts who do their homework come from EVGA's G2 and P2 families, and Corsair's RMx and RMi line-ups. You simply cannot go wrong with any of them. At least in the U.S., those companies do battle with each other, leaving everyone else behind.

Swipe to scroll horizontally
Rail3.3V5V12V5VSB-12V
Max. PowerAmps25255430.8
Watts130648159.6
Total Max. Power (W)650
Swipe to scroll horizontally
Modular Cables
DescriptionCable CountConnector Count (Total)
ATX connector 20+4 pin (610mm)11
4+4 pin EPS12V (660mm)11
6+2 pin PCIe (600mm+150mm)24
SATA (520mm+110mm+110mm)39
Four-pin Molex (450mm+100mm+100mm+100mm)14
FDD Adapter (+100mm)11
TOPICS
Aris Mpitziopoulos
Contributing Editor

Aris Mpitziopoulos is a contributing editor at Tom's Hardware, covering PSUs.

  • maxwellmelon
    for all the good listed in this article, this series of psu just gets bashed in the fourms, just interesting.
    Reply
  • basroil
    18305746 said:
    for all the good listed in this article, this series of psu just gets bashed in the fourms, just interesting.

    You're thinking of the older RM650, different design.

    The review here just made this unit be one of my recommended 650 models, tied with the EVGA G2/P2 and just below the Seasonic 660XP2!
    Reply
  • pjc6281
    I have had this PSU for my new Skylake build for 2 months. Its GREAT, quiet and even have it pushing my old dinosaur Nvidia 590 with no problems. My old power supply was a Corsair AX1200 that was rock solid as well. Nothing but good experiences with them. I know others differ.
    Reply
  • Dark Lord of Tech
    RMX doesn't get bashed , RMX and RMI are very very good. I own the RMX 850 , GREAT UNIT.
    Reply
  • TechyInAZ
    I'm glad the new RM series is much higher quality. All I remember Corsair having is a bunch of bad PSUs with select few good PSU (like AX and HX).

    I hope this same kind of quality intros into other models like the newly refreshed CX PSUs.
    Reply
  • 18305746 said:
    for all the good listed in this article, this series of psu just gets bashed in the fourms, just interesting.

    Yeah, I believe you are confusing the RMx and RMi with the older, mostly discontinued RM line. And of the old RM line only the 750w and 850w versions that were first made by Chicony Power Technology had the bad reputation. Anyone bashing the RMx and RMi doesn't know what they are talking about. Once misinformation gets out there it's hard to get it corrected though.

    Another great review Aris! :)
    Reply
  • Nintendork
    Why buy Corsair or EVGA when you can get a Seasonic?
    Reply
  • 18308072 said:
    Why buy Corsair or EVGA when you can get a Seasonic?

    Seasonic doesn't have a lock on quality. They also don't offer a 10 year warranty which both Corsair and EVGA do on some models. Just off the top of my head Flextronics, CWT and SuperFlower are all capable of making units that are at least equal to high end Seasonic quality. There are others as well.
    Reply
  • TechyInAZ
    18308188 said:
    18308072 said:
    Why buy Corsair or EVGA when you can get a Seasonic?

    Seasonic doesn't have a lock on quality. They also don't offer a 10 year warranty which both Corsair and EVGA do on some models. Just off the top of my head Flextronics, CWT and SuperFlower are all capable of making units that are at least equal to high end Seasonic quality. There are others as well.

    Plus, efficiency levels are typically better with EVGA than Seasonic.
    Reply
  • 18308342 said:
    18308188 said:
    18308072 said:
    Why buy Corsair or EVGA when you can get a Seasonic?

    Seasonic doesn't have a lock on quality. They also don't offer a 10 year warranty which both Corsair and EVGA do on some models. Just off the top of my head Flextronics, CWT and SuperFlower are all capable of making units that are at least equal to high end Seasonic quality. There are others as well.

    Plus, efficiency levels are typically better with EVGA than Seasonic.

    :??: Not sure what you mean. EVGA has a couple of 80 Plus Titanium models but Seasonic has Titanium models in their new lineup. I'm not sure if those new Seasonic models are available yet though. Other than that I've had an 80 Plus Platinum Seasonic ( 660XP2 ) for a couple of years and their Platinum line has been out since at least 2011.
    Reply