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CORSAIR RM750e (2025) vs CORSAIR RM750x (2024)

33 of 58 fields differ

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  • 25 different values
  • 8 known for one only
  • 20 the same
  • 5 missing for both

Biggest differences

Each bar uses the scale of all 66 power supplies.

  1. 12V rippleLower is betterA: 45.62mVB: 23.08mVRM750x (2024) is 22.54 mV lower.
  2. Hold-up timeA: 16.7msB: 26.6msRM750x (2024) is 9.9 ms higher.
  3. 4-pin Molex connectorsA: 2B: 3RM750x (2024) has 1 more.
  4. PCIe 8-pin connectorsA: 3B: 4RM750x (2024) has 1 more.
  5. SATA power connectorsA: 6B: 8RM750x (2024) has 2 more.

Size, drawn to scale

Front and side.

Weight

0 to 2.5 kg

A1.5kg
B1.77kg

All 66 fields

Every value links to where we found it.

ACORSAIR RM750e (2025)
BCORSAIR RM750x (2024)

General

6 of 12 differ
Predecessor
Not available
Not available
Successor
Not available
Not available
Markets
Not available
Not available

Power

2 of 9 differ
Full power rated up to
Not available

Certifications

2 of 5 differ
80 PLUS rating
Not available
Not available
Cybenetics efficiency at 230V

Measured

10 of 10 differ
Light-load efficiency at 115V (measured)

Cables and connectors

4 of 7 differ
Cables
ACORSAIR RM750e (2025)
ConnectorConnectorsCablesLength to first plug (mm)Wire gaugeRated power (W)
ATX 24-pin (20+4)1161018-20AWGNot available
CPU 8-pin (EPS, 4+4)2275018AWGNot available
PCIe 8-pin (6+2)1165018AWGNot available
PCIe 8-pin (6+2)2165016-18AWGNot available
12V-2x611650Not available600
SATA power6245018AWGNot available
4-pin Molex2145018AWGNot available
Source1Maker product pagecorsair.com/us/en/p/psu/cp-9020295-na/rme-series-rm750e-fully-modular-low-noise-atx-power-supply-cp-9020295-naRead 16 October 2026Cable listing: 24-pin 610 mm, 2 EPS 4+4-pin cables 750 mm, 12V-2x6 650 mm, 12V-2x6 to dual 8-pin (6+2) 650 mm, 1 PCIe 8-pin (6+2) 650 mm, SATA cable with 4 SATA (450 mm to the first plug, then 100 mm spacing), SATA/PATA cable with 2 SATA and 2 PATA (450 mm, 100 mm spacing). Tech Specs: SATA connector 6, PATA connector 2. PCIe 8-pin is 1 single cable plus 1 cable with two 8-pin plugs, so 3 plugs on 2 cables. The two 4-pin PATA plugs are the molex row, which takes the 450 mm to the first plug of that cable. The 12V-2x6 cable is described as a native 600W-capable cable. The wire gauges come from the Cybenetics report. The quick start guide lists 2 single 8-pin PCIe cables for this model, which does not match this table, the Cybenetics report or Hardware Busters. The PSU side has one 12V-2x6 socket, so the dual 8-pin cable takes the 12V-2x6 socket and cannot be used together with the native 12V-2x6 cable. Cybenetics measures 600 mm, 740 mm, 640 mm and 445 mm for some of the same cables, which are not stored.5Measurementcybenetics.com/evaluations/psus/2625Read 16 October 2026Cables and Connectors table gives wire gauge per cable: ATX 18-20AWG, EPS 18AWG, 6+2 PCIe 18AWG, 2x 6+2 PCIe 16-18AWG, 12+2 pin PCIe (600W) 16-24AWG, SATA and Molex 18AWG. The 16-24AWG range for the 12V-2x6 cable includes the thin sideband wires, so no gauge is stored for it. Lengths are Corsair's.
BCORSAIR RM750x (2024)
ConnectorConnectorsCablesLength to first plug (mm)Wire gaugeRated power (W)
ATX 24-pin (20+4)1161016-20AWGNot available
CPU 8-pin (EPS, 4+4)2275018AWGNot available
PCIe 8-pin (6+2)4365016-18AWGNot available
12V-2x611650Not available600
SATA power8250518AWGNot available
4-pin Molex3155018AWGNot available
Source1Maker product pagecorsair.com/us/en/p/psu/cp-9020285-na/rmx-series-rm750x-fully-modular-power-supply-cp-9020285-naRead 15 October 2026Cable listing: 1 ATX 24-pin 610 mm, 2 EPS 8-pin (4+4) 750 mm, 2 PCIe 8-pin (6+2) cables with one plug each, 1 PCIe 12V-2x6 to Dual 8-Pin (6+2) cable with two plugs, 1 PCIe 12V-2x6 (12+4) cable, all three PCIe cable types 650 mm, 2 SATA cables with 4 plugs each (505 mm to the first plug, 115 mm spacing, 850 mm total), 1 PATA cable with 3 plugs (550 mm to the first plug, 100 mm spacing, 750 mm total). All lengths have a tolerance of 10 mm, the PATA cable 25 mm. PATA plugs are the 4-pin Molex plugs. The 12V-2x6 to dual 8-pin cable counts as PCIe 8-pin, so there are 4 PCIe 8-pin plugs on 3 cables. It starts at the 12V-2x6 socket of the PSU, so it shares that socket with the 12V-2x6 cable. Hardware Busters and Cybenetics list 3 PCIe 6+2 cables with 3 plugs and no dual cable, which does not match the maker's list. The page does not rate the 12V-2x6 cable. The Cybenetics report and Hardware Busters list it at 600 W. Gauges come from the Cybenetics report.2Owner's manualcorsair.com/us/en/explorer/diy-builder/power-supply-units/corsair-rmx-seriesRead 15 October 2026Included cables: 1x ATX 24-pin 610 mm, 2x EPS/ATX12V 8-pin (4+4) 750 mm, 1x PCIe 12V-2x6 (12+4) 650 mm, 2x PCIe 8-pin (6+2) 650 mm (RM750x), 1x 12V-2x6 to Dual 8-pin (6+2) 650 mm (RM750x only), 2x SATA with 4 plugs 850 mm, 1x PATA with 3 plugs 750 mm.8Measurementcybenetics.com/evaluations/psus/2406Read 15 October 2026Cables and Connectors table: ATX 16-20AWG, EPS 18AWG, 6+2 pin PCIe 16-18AWG, 12+2 pin PCIe (600W) 16-24AWG, SATA 18AWG and Molex 18AWG, no in-cable capacitors. The report lists 3 PCIe 6+2 cables with 3 connectors, which does not match the maker's dual 8-pin cable. The 16-24AWG range for the 12V-2x6 cable includes the thin sideband wires, so no gauge is stored for it. Cybenetics lists the SATA cable at 500 mm, which is not stored.9Reviewhwbusters.com/psus/corsair-rm750x-atx-v3-1-psu-reviewRead 15 October 2026Cables page: the same cable table as the Cybenetics report. The text says the modular board has ten sockets, one of them 12V-2x6, and no pair of 8-pin sockets for the high-power PCIe connector.
CPU (EPS) connectors
2
2
PCIe 8-pin connectors
3
4
16-pin GPU connectors
1
1
SATA power connectors
6
8
4-pin Molex connectors
2
3

Fan

3 of 4 differ

Protection and parts

1 of 3 differ
Protections

Monitoring and lighting

1 of 4 differ
Software monitoring
Not available
Not available
Software
Not available
Not available
Built-in power display
Not available
Not available

Dimensions and weight

2 of 2 differ
Weight

In the box

1 of 1 differ
In the box
Not available

Warranty

1 of 1 differ
Manufacturer warranty (source market)

Both are also in the API. Back to all power supplies.