Corsair
RM850x Shift 2025
The RM850x Shift 2025 lands as a solid mid-range power supplie, built around 850 W.
57/100
850 WGoldFully modularATX 3.1BlackFluid-dynamic bearing
£179best price at Amazon
In stock at 2 retailers
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Why we rate it
- 12V-2x6 / 12VHPWR
- Above-average fan size
- No zero rpm mode
- Below-average wattage
Score profile
Scored against the power supplies classWhere the RM850x Shift 2025 wins and loses
Full specification
Grouped · supported features marked in blueSpecifications
Output
Wattage850 W
Efficiency ratingGold
ATX standardATX 3.1
Cybenetics ratingGold
Form factor and design
ModularFully modular
Weight1.51 kg
ColourBlack
Cooling and noise
Fan size140 mm
Fan bearingFluid-dynamic bearing
Connectors
12V-2x6 / 12VHPWRYes
Cable typeModular
Head to head
Highlighted cell = better in that rowRM850x Shift 2025 vs Lian Li Lian Li EDGE Gold 850W
RM850x Shift 2025Lian Li EDGE Gold 850W
| CorsairRM850x Shift 2025This page | Lian LiLian Li EDGE Gold 850W | |
|---|---|---|
| Overall score | 57 /100 | 58 /100Better |
| Wattage | 850 W | 850 W |
| Efficiency rating | Gold | 80 |
| Form factor | — | ATX |
| Modular | Fully modular | Fully modular |
Who it's for
Is the RM850x Shift 2025 right for you?
Buy it if
Buyers on a budget
Anyone who needs a dependable power supplie for the essentials without overspending.
Skip it if
Skip it if
You need zero rpm mode, in which case a higher-tier power supplie is the better call.
Performance builder
Chasing frames and headroom in a high-end rig.
okay
Mainstream builder
Wants strong value in a balanced build.
good
Budget builder
Stretching every pound in an entry rig.
good
Common questions
Before you buy
Is the RM850x Shift 2025 worth it?
It depends on what you need. It scores 57/100 against other power supplies, a solid mid-range result where the class average is around 58.
What stands out on the RM850x Shift 2025?
Its 12v-2x6 / 12vhpwr stands out, a genuinely useful feature if your setup calls for it.
How does it compare to the Corsair RM850e (2025)?
The Corsair RM850e (2025) scores 58/100 versus this one at 57/100, so it is the step up on the spec sheet.
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