be quiet! Pure Power 13 M 850W
The current be quiet! Pure Power 13 M 850W price from retailers, its key specifications, and how it performs for each job.
be quiet! · PSU · ATX 3.x
Retailer photo of be quiet! Pure Power 13 M 850W. View this offer in Where to buy
Works well for: Gaming PC
Trade-offs: Current price sits CAD 55 above the strong-value threshold (~CAD 145)
- 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 200 the be quiet! Pure Power 13 M 850W is priced in line with its CAD 200 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
be quiet! Pure Power 13 M 850W: 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 |
|---|---|---|---|---|---|---|
| be quiet! Pure Power 13 M 850W | Newegg | New | CAD 200 | 58 | 2026-11-08 | View offer → |
| be quiet! Pure Power 13 M 850WMultiple 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.
#61 of 106 graded Power supplies
- #58 NZXTNZXT C850 Gold ATX 3.1 43
- #59 NZXTNZXT C850 Gold Core 43
- #60 CorsairCorsair RM850e White 43
- #61 be quiet!be quiet! Pure Power 13 M 850W 43
- #62 CorsairCorsair RM850x 43
- #63 GigabyteGigabyte 850W GP-P850GM 43
- #64 ThermaltakeThermaltake Toughpower SFX Platinum 850W 43
Value Balanced
How much of that you get for today’s price.
#33 of 107 currently priced Power supplies
- #30 MontechMONTECH BETA 2 550W 61
- #31 FSPFSP 750W VIC-750GM 61
- #32 PhanteksPhanteks AMP GH 750W Black 60
- #33 be quiet!be quiet! Pure Power 13 M 850W 58
- #34 FSPFSP 650W VIC-650GM 58
- #35 ASUSASUS TUF Gaming 1000W Gold 58
- #36 MSIMSI MAG A1000PLS PCIE5 58
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#61 of 106 graded Power supplies
- #58 NZXTNZXT C850 Gold ATX 3.1 43
- #59 NZXTNZXT C850 Gold Core 43
- #60 CorsairCorsair RM850e White 43
- #61 be quiet!be quiet! Pure Power 13 M 850W 43
- #62 CorsairCorsair RM850x 43
- #63 GigabyteGigabyte 850W GP-P850GM 43
- #64 ThermaltakeThermaltake Toughpower SFX Platinum 850W 43
Value Gaming PC
How much of that you get for today’s price.
#37 of 107 currently priced Power supplies
- #34 MSIMSI MAG A550BN 59
- #35 FSPFSP 650W VIC-650GM 59
- #36 NZXTNZXT C850 Gold Core 57
- #37 be quiet!be quiet! Pure Power 13 M 850W 57
- #38 MSIMSI MAG A1000PLS PCIE5 56
- #39 CorsairCorsair RM850e White 56
- #40 Cooler MasterCooler Master MWE Gold 750 V3 56
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#61 of 106 graded Power supplies
- #58 NZXTNZXT C850 Gold ATX 3.1 43
- #59 NZXTNZXT C850 Gold Core 43
- #60 CorsairCorsair RM850e White 43
- #61 be quiet!be quiet! Pure Power 13 M 850W 43
- #62 CorsairCorsair RM850x 43
- #63 GigabyteGigabyte 850W GP-P850GM 43
- #64 ThermaltakeThermaltake Toughpower SFX Platinum 850W 43
Value High-end GPU
How much of that you get for today’s price.
#23 of 107 currently priced Power supplies
- #20 CorsairCorsair RM750e White 83
- #21 ASUSASUS ROG Strix 1000W Platinum 82
- #22 be quiet!be quiet! Pure Power 12 750W 82
- #23 be quiet!be quiet! Pure Power 13 M 850W 82
- #24 ThermaltakeThermaltake Toughpower GT 1200W 81
- #25 be quiet!be quiet! POWER ZONE 2 1000W 81
- #26 PhanteksPhanteks AMP GH 750W Black 81
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#58 of 99 graded Power supplies
- #55 NZXTNZXT C850 Gold ATX 3.1 43
- #56 NZXTNZXT C850 Gold Core 43
- #57 CorsairCorsair RM850e White 43
- #58 be quiet!be quiet! Pure Power 13 M 850W 43
- #59 CorsairCorsair RM850x 43
- #60 GigabyteGigabyte 850W GP-P850GM 43
- #61 ThermaltakeThermaltake Toughpower SFX Platinum 850W 43
Value Small form factor
How much of that you get for today’s price.
#45 of 107 currently priced Power supplies
- #42 NZXTNZXT C850 Gold Core 48
- #43 Super FlowerSuper Flower 650W Combat DB 47
- #44 CorsairCorsair RM850e White 47
- #45 be quiet!be quiet! Pure Power 13 M 850W 47
- #46 FSPFSP 1000W VITA-1000GM 46
- #47 FSPFSP 850W VITA-850GM 46
- #48 Cooler MasterCooler Master MWE Gold 750 V3 46
Performance Workstation
How much it can do. Price plays no part in this ranking.
#58 of 99 graded Power supplies
- #55 NZXTNZXT C850 Gold ATX 3.1 67
- #56 NZXTNZXT C850 Gold Core 67
- #57 CorsairCorsair RM850e White 67
- #58 be quiet!be quiet! Pure Power 13 M 850W 67
- #59 CorsairCorsair RM850x 67
- #60 GigabyteGigabyte 850W GP-P850GM 67
- #61 NZXTNZXT C850 SFX Gold 67
Value Workstation
How much of that you get for today’s price.
#19 of 107 currently priced Power supplies
- #16 NZXTNZXT C750 Gold Core 83
- #17 ASUSASUS TUF Gaming 1000W Gold 83
- #18 ASRockASRock Challenger CL-650G 82
- #19 be quiet!be quiet! Pure Power 13 M 850W 82
- #20 be quiet!be quiet! POWER ZONE 2 1200W 81
- #21 MSIMSI MAG A1200PLS PCIE5 81
- #22 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 80
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 Value58 | Higher capability Thermaltake Toughpower GT 1200W 54 +41% capability · +3% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 88 +0% capability · -34% price |
| Gaming PCScenario capability | GradeS Value57 | Higher capability Thermaltake Toughpower GT 1200W S 55 +41% capability · +3% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 S 86 +0% capability · -34% price |
| High-end GPUScenario capability | GradeB Value82 | Higher capability Thermaltake Toughpower GT 1200W S 81 +41% capability · +3% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 B 100 +0% capability · -34% price |
| Small form factorScenario capability | GradeF Value47 | Higher capability Thermaltake Toughpower GT 1200W F 46 +41% capability · +3% price | Higher Value with current priorities ASRock PRO-850B F 78 +0% capability · -53% price |
| Workstation & 24/7Scenario capability | GradeB Value82 | Higher capability be quiet! POWER ZONE 2 750W B 95 +25% capability · -20% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 B 100 +0% capability · -34% 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 145CAD 145 is where Relative Value reaches 80 with Balanced priorities, in the 2026-11-08–2026-11-09 offer frame
Consider other options if
- Current price sits CAD 55 above the strong-value threshold (~CAD 145)cheapest tracked CAD 200 against a CAD 145 calculated threshold with Balanced priorities
- Value for money matters more to you than this exact modelCooler Master MWE Gold 850 V3 holds Relative Value 88 against its 58 with Balanced priorities, at CAD 133
- Not the pick if Small form factor is your main useit 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 144CAD 144 is where Relative Value reaches 80 for Gaming PC, in the 2026-11-08–2026-11-09 offer frame
Consider other options if
- Current price sits CAD 56 above the strong-value threshold (~CAD 144)cheapest tracked CAD 200 against a CAD 144 calculated threshold for Gaming PC
- Value for money matters more to you than this exact modelCooler Master MWE Gold 850 V3 holds Relative Value 86 against its 57 for Gaming PC, at CAD 133
- Not the pick if Small form factor is your main useit 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 200 against a CAD 208 threshold for High-end GPU
Consider other options if
- Value for money matters more to you than this exact modelCooler Master MWE Gold 850 V3 holds Relative Value 100 against its 82 for High-end GPU, at CAD 133
- Not the pick if Small form factor is your main useit 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
- Not the pick if Small form factor is your main useit grades F there; Thermaltake Toughpower GT 1200W grades F at CAD 205
- You want strong value for Small form factor specificallyat today's market no realistic price for this model reaches strong value for Small form factor — the calculation only gets there near CAD 117, against a cheapest tracked CAD 200
- Value for money matters more to you than this exact modelASRock PRO-850B holds Relative Value 78 against its 47 for Small form factor, at CAD 95
Works well if
- Workstation is your main prioritygraded B for Workstation on the same rubric as the tier list
- Today's price already clears the strong-value markcheapest tracked CAD 200 against a CAD 208 threshold for Workstation
Consider other options if
- Value for money matters more to you than this exact modelCooler Master MWE Gold 850 V3 holds Relative Value 100 against its 82 for Workstation, at CAD 133
- Not the pick if Small form factor is your main useit 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 be quiet! Pure Power 13 M 850W
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
- 850 W
- 80 PLUS rating
- 80 PLUS Gold
- ATX standard
- ATX 3.1
Show all specifications
Warranty
- Warranty
- 10 years
- Manufacturer part number
- BP027US
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-11-08–2026-11-09
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
be quiet! Pure Power 13 M 850W offers a balanced view across an all-round mix of priorities. It ranks #61 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.
be quiet! Pure Power 13 M 850W offers S-grade capability for Gaming PC. It ranks #61 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.
be quiet! Pure Power 13 M 850W offers B-grade capability for High-end GPU. It ranks #61 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.
be quiet! Pure Power 13 M 850W offers F-grade capability for Small form factor. It ranks #58 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.
be quiet! Pure Power 13 M 850W offers B-grade capability for Workstation. It ranks #58 by capability in the current modelled field. Its clearest measured strength is rated output 850. ASRock PRO-650G 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 listing snapshots can participate in Value while fresh. We show Check on Amazon instead of its price; confirm the current price and availability at the store. When no current listing snapshot exists, Amazon is a search link only.
Useful links & sources
offer frame 2026-11-08–2026-11-09 · formula psu-value-v6.1 · facts facts-2026-11-09 · 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.