Retailer photo of Corsair RM850x. View this offer in Where to buy
Corsair · PSU · ATX 3.x
Corsair RM850x
The current Corsair RM850x price from retailers, its key specifications, and how it performs for each job.
Works well for: Gaming PC
Trade-offs: Current price sits CAD 17 above the strong-value threshold (~CAD 193)
- Rated output
- 850 W
- 80 PLUS rating
- 80 PLUS Gold
- Size
- ATX
- Modularity
- Fully modular
- ATX standard
- ATX 3.1
Move a slider and the page re-scores this product against the same market frame.
What does it cost today, and is that a good price?
Market confidence: LowAt CAD 210 the Corsair RM850x is priced in line with its CAD 210 representative market level. Only one retailer currently backs that price, so the level is a single data point rather than a market.
Limited market: only one retailer currently has a verified offer, so treat this price as a single data point.
Prices & availability
Corsair RM850x: current price and offers
Compare the offers we track for this model, across variants and retailers.
1 tracked offers · 1 retailers
| Variant | Store | Condition | Price (snapshot) | Value · Balanced | Checked | Offer link |
|---|---|---|---|---|---|---|
| Corsair RM850x | Newegg | New | CAD 210 | 76 | 2026-10-16 | View offer → |
| Corsair RM850xMultiple variants available | Amazon Affiliate | Varies | Find on Amazon | Not tracked | No price snapshot | Find on Amazon → |
Prices are dated snapshots, not live quotes — confirm the final price at the store. New, refurbished and used offers are listed separately; used offers carry warranty and seller risk.
Performance and where it ranks
Two different questions, side by side. Performance compares what the hardware can do; Value compares what that capability costs at today’s price. A product can rank high on one and low on the other — that gap is the point.
Performance Balanced
How much it can do. Price plays no part in this ranking.
#38 of 71 graded Power supplies
- #35 NZXTNZXT C850 Gold Core 57
- #36 CorsairCorsair RM850e White 57
- #37 be quiet!be quiet! Pure Power 13 M 850W 57
- #38 CorsairCorsair RM850x 57
- #39 ThermaltakeThermaltake Toughpower SFX Platinum 850W 57
- #40 NZXTNZXT C850 SFX Gold 57
- #41 be quiet!be quiet! Dark Power 14 850W 57
Value Balanced
How much of that you get for today’s price.
#20 of 71 currently priced Power supplies
- #17 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 78
- #18 CorsairCorsair RM750e White 77
- #19 ASRockASRock PRO-750G 77
- #20 CorsairCorsair RM850x 76
- #21 PhanteksPhanteks AMP GH 750W Black 76
- #22 be quiet!be quiet! Pure Power 12 850W 76
- #23 be quiet!be quiet! POWER ZONE 2 1200W 76
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#38 of 71 graded Power supplies
- #35 NZXTNZXT C850 Gold Core 57
- #36 CorsairCorsair RM850e White 57
- #37 be quiet!be quiet! Pure Power 13 M 850W 57
- #38 CorsairCorsair RM850x 57
- #39 ThermaltakeThermaltake Toughpower SFX Platinum 850W 57
- #40 NZXTNZXT C850 SFX Gold 57
- #41 be quiet!be quiet! Dark Power 14 850W 57
Value Gaming PC
How much of that you get for today’s price.
#24 of 71 currently priced Power supplies
- #21 PhanteksPhanteks AMP GH 750W Black 78
- #22 be quiet!be quiet! POWER ZONE 2 1200W 78
- #23 MSIMSI MAG A1200PLS PCIE5 78
- #24 CorsairCorsair RM850x 78
- #25 Cooler MasterCooler Master MWE Gold 750 V3 77
- #26 CorsairCorsair RM750x Shift White 77
- #27 be quiet!be quiet! Pure Power 12 850W 77
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#38 of 71 graded Power supplies
- #35 NZXTNZXT C850 Gold Core 57
- #36 CorsairCorsair RM850e White 57
- #37 be quiet!be quiet! Pure Power 13 M 850W 57
- #38 CorsairCorsair RM850x 57
- #39 ThermaltakeThermaltake Toughpower SFX Platinum 850W 57
- #40 NZXTNZXT C850 SFX Gold 57
- #41 be quiet!be quiet! Dark Power 14 850W 57
Value High-end GPU
How much of that you get for today’s price.
#26 of 71 currently priced Power supplies
- #23 be quiet!be quiet! Pure Power 13 M 850W 83
- #24 PhanteksPhanteks AMP GH 850W White 83
- #25 CorsairCorsair RM750x 82
- #26 CorsairCorsair RM850x 82
- #27 be quiet!be quiet! Dark Power 14 850W 81
- #28 be quiet!be quiet! PURE POWER 13 M 750W 81
- #29 CorsairCorsair HX1000i 81
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#38 of 71 graded Power supplies
- #35 NZXTNZXT C850 Gold Core 57
- #36 CorsairCorsair RM850e White 57
- #37 be quiet!be quiet! Pure Power 13 M 850W 57
- #38 CorsairCorsair RM850x 57
- #39 ThermaltakeThermaltake Toughpower SFX Platinum 850W 57
- #40 NZXTNZXT C850 SFX Gold 57
- #41 be quiet!be quiet! Dark Power 14 850W 57
Value Small form factor
How much of that you get for today’s price.
#29 of 71 currently priced Power supplies
- #26 be quiet!be quiet! Pure Power 13 M 850W 37
- #27 ThermaltakeThermaltake Toughpower GT 1200W 37
- #28 PhanteksPhanteks AMP GH 750W Black 37
- #29 CorsairCorsair RM850x 36
- #30 ASUSASUS TUF Gaming 1000W Gold 36
- #31 CorsairCorsair RM850e White 36
- #32 NZXTNZXT C850 Gold Core 36
Performance Workstation
How much it can do. Price plays no part in this ranking.
#40 of 71 graded Power supplies
- #37 NZXTNZXT C850 Gold Core 67
- #38 CorsairCorsair RM850e White 67
- #39 be quiet!be quiet! Pure Power 13 M 850W 67
- #40 CorsairCorsair RM850x 67
- #41 NZXTNZXT C850 SFX Gold 67
- #42 ThermaltakeThermaltake Toughpower GF A3 Gold 850W 67
- #43 ASRockASRock PRO-750G 67
Value Workstation
How much of that you get for today’s price.
#26 of 71 currently priced Power supplies
- #23 CorsairCorsair HX1000i 78
- #24 be quiet!be quiet! PURE POWER 13 M 750W 78
- #25 PhanteksPhanteks AMP GH 850W Black 77
- #26 CorsairCorsair RM850x 76
- #27 be quiet!be quiet! Pure Power 12 850W 76
- #28 CorsairCorsair RM1000x ATX 3.1 76
- #29 MSIMSI PRO A1000PL PCIE5 75
These ladders follow the preset scenario shown above. Your own weights re-score this product, not the whole field.
What it is good for
| Scenario | this productCapability grade · Value at current price | Higher capability | Higher Value with current priorities |
|---|---|---|---|
| Balanced (all-round)Weighted all-round view | GradeNo grade Value76 | Higher capability Thermaltake Toughpower GT 1200W 72 +41% capability · -2% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 100 +0% capability · -37% price |
| Gaming PCScenario capability | GradeS Value78 | Higher capability Thermaltake Toughpower GT 1200W S 76 +41% capability · -2% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 S 100 +0% capability · -37% price |
| High-end GPUScenario capability | GradeB Value82 | Higher capability Thermaltake Toughpower GT 1200W S 84 +41% capability · -2% price | Higher Value with current priorities MSI MAG A1000PLS PCIE5 A 97 +18% capability · +5% price |
| Small form factorScenario capability | GradeF Value36 | Higher capability Thermaltake Toughpower GT 1200W F 37 +41% capability · -2% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 F 45 +0% capability · -37% price |
| Workstation & 24/7Scenario capability | GradeB Value76 | Higher capability be quiet! POWER ZONE 2 750W B 93 +25% capability · -24% price | Higher Value with current priorities MSI MAG A1000PLS PCIE5 A 96 +25% capability · +5% price |
Balanced has no letter: it is a weighting preset, not a capability rubric. A grade answers “how well does this handle that job?” — price is never part of it. Relative Value puts the current market price back in.
Compare these grades with the full tier list
Trade-offs
Works well if
- Gaming PC is your main prioritygraded S for Gaming PC on the same rubric as the tier list
- Strong-value threshold: ~CAD 193CAD 193 is where Relative Value reaches 80 with Balanced priorities, in the 2026-10-16 offer frame
Consider other options if
- Current price sits CAD 17 above the strong-value threshold (~CAD 193)cheapest tracked CAD 210 against a CAD 193 calculated threshold with Balanced priorities
- Value for money matters more to you than this exact modelCooler Master MWE Gold 850 V3 holds Relative Value 100 against its 76 with Balanced priorities, at CAD 133
- Small form factor is what you actually need it forit grades only F there
Works well if
- Gaming PC is your main prioritygraded S for Gaming PC on the same rubric as the tier list
- Strong-value threshold: ~CAD 200CAD 200 is where Relative Value reaches 80 for Gaming PC, in the 2026-10-16 offer frame
Consider other options if
- Current price sits CAD 10 above the strong-value threshold (~CAD 200)cheapest tracked CAD 210 against a CAD 200 calculated threshold for Gaming PC
- Value for money matters more to you than this exact modelCooler Master MWE Gold 850 V3 holds Relative Value 100 against its 78 for Gaming PC, at CAD 133
- Small form factor is what you actually need it forit grades only F there
Works well if
- High-end GPU is your main prioritygraded B for High-end GPU on the same rubric as the tier list
- Today's price already clears the strong-value markcheapest tracked CAD 210 against a CAD 223 threshold for High-end GPU
Consider other options if
- Small form factor is what you actually need it forit grades only F there
- You need more Rated output than 850 Wthis product is fixed at 850 W; Thermaltake Toughpower GT 1200W offers 1200 W inside the same budget
For the selected scenario this is not a strong fit — the grade above is the reason, and the models below suit it better.
Works well if
- Small form factor is not actually your main job — Gaming PC isit grades F for Small form factor, but S for Gaming PC
Consider other options if
- Small form factor is what you actually need it forit grades F there; Thermaltake Toughpower GT 1200W grades F at CAD 205
- You want strong value for Small form factor specificallycompeting products deliver so much more for Small form factor per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- Value for money matters more to you than this exact modelCooler Master MWE Gold 850 V3 holds Relative Value 45 against its 36 for Small form factor, at CAD 133
Works well if
- Workstation is your main prioritygraded B for Workstation on the same rubric as the tier list
- Strong-value threshold: ~CAD 187CAD 187 is where Relative Value reaches 80 for Workstation, in the 2026-10-16 offer frame
Consider other options if
- Current price sits CAD 23 above the strong-value threshold (~CAD 187)cheapest tracked CAD 210 against a CAD 187 calculated threshold for Workstation
- Small form factor is what you actually need it forit grades only F there
Every line states the fact it was derived from, for the scenario selected above. Thresholds are calculated points on our value curve — information about where the maths turns, not instructions about what to pay.
Similar options to the Corsair RM850x
Chosen for Balanced
Chosen for Gaming PC
Chosen for High-end GPU
Chosen for Small form factor
Chosen for Workstation
Alternatives stay near this product’s price range. Step-up options may exceed the standard budget envelope when the capability gain is meaningful.
More head-to-head comparisons in this category
Upgrade planner
Judge the change in the active scenario, then make the cash gap explicit.
Using page scenarioWhat are you upgrading from? These are the axes we compare on, and where this product stands in the current market.
Capability differences are expressed as tiers and index points, not as benchmark percentages we did not measure.
Specifications and compatibility
What this product is, and what to check before it goes into your build.
Power / Interface
- Rated output
- 850 W
- +12 V output
- 849.6 W
- 80 PLUS rating
- 80 PLUS Gold
- ATX standard
- ATX 3.1
Show all specifications
Warranty
- Warranty
- 10 years
- Manufacturer part number
- CP-9020270-NA
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-10-16
What to check in your build
A case that takes ATX power supplies
The size is set by the case: ATX cases take ATX units, small cases take SFX (some also SFX-L).
160 mm of power-supply bay, plus room for the cables
Case makers list the longest power supply the bay takes; modular cables need extra space behind the unit.
Found an error? Report this specification Email the field, corrected value and an optional source.
Compatibility guidance is practical help, not a score. Missing data is shown as unknown, never invented.
Summary
Corsair RM850x offers a balanced view across an all-round mix of priorities. It ranks #38 by capability in the current modelled field. Its clearest measured strength is rated output 850. Cooler Master MWE Gold 850 V3 currently clears the same practical bar with stronger Relative Value.
Corsair RM850x offers S-grade capability for Gaming PC. It ranks #38 by capability in the current modelled field. Its clearest measured strength is rated output 850. Cooler Master MWE Gold 850 V3 currently clears the same practical bar with stronger Relative Value.
Corsair RM850x offers B-grade capability for High-end GPU. It ranks #38 by capability in the current modelled field. Its clearest measured strength is rated output 850. Cooler Master MWE Gold 850 V3 currently clears the same practical bar with stronger Relative Value.
Corsair RM850x offers F-grade capability for Small form factor. It ranks #38 by capability in the current modelled field. Its clearest measured strength is rated output 850. The F grade is the decisive limitation for this workload.
Corsair RM850x offers B-grade capability for Workstation. It ranks #40 by capability in the current modelled field. Its clearest measured strength is rated output 850. Cooler Master MWE Gold 850 V3 currently clears the same practical bar with stronger Relative Value.
FAQ
Why does Relative Value change when I choose another scenario?
Each scenario changes the weights applied to capability, price and the other published factors. The hardware facts stay fixed, but the value question changes, so its score and rank can change too.
Why can Amazon appear without a tracked price?
Amazon is shown as a discovery link when we do not have a permitted verified price snapshot. It is excluded from price comparisons, rankings and Relative Value until a compliant tracked price exists.
Useful links & sources
offer frame 2026-10-16 · formula psu-value-v1 · facts facts-2026-10-17 · Relative Value is an estimate from our current dataset, the selected weights and dated market prices — not an official product rating and not a price forecast. Target prices are calculation thresholds, not predictions. Methodology We are not a shop. Affiliate links may earn us a commission; they never change the calculations or the ranking.