Retailer photo of Thermaltake Smart BM3 Bronze 850W. View this offer in Where to buy
Thermaltake · PSU · ATX 3.x
Thermaltake Smart BM3 Bronze 850W
The current Thermaltake Smart BM3 Bronze 850W price from retailers, its key specifications, and how it performs for each job.
Works well for: Gaming PC
Trade-offs: you want strong value with Balanced priorities specifically
- Rated output
- 850 W
- 80 PLUS rating
- 80 PLUS Bronze
- Size
- ATX
- Modularity
- Semi-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 326 the Thermaltake Smart BM3 Bronze 850W is priced in line with its CAD 326 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
Thermaltake Smart BM3 Bronze 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 |
|---|---|---|---|---|---|---|
| Thermaltake Smart BM3 Bronze 850W | Newegg | New | CAD 326 | 33 | 2026-10-16 | View offer → |
| Thermaltake Smart BM3 Bronze 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.
#42 of 71 graded Power supplies
- #39 ThermaltakeThermaltake Toughpower SFX Platinum 850W 57
- #40 NZXTNZXT C850 SFX Gold 57
- #41 be quiet!be quiet! Dark Power 14 850W 57
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 57
- #43 ThermaltakeThermaltake Toughpower GF A3 Gold 850W 57
- #44 MSIMSI MAG A750BN PCIE5 III 50
- #45 ASRockASRock PRO-750G 50
Value Balanced
How much of that you get for today’s price.
#71 of 71 currently priced Power supplies
- #65 ThermaltakeThermaltake Toughpower GX2 600W 45
- #66 ThermaltakeThermaltake Toughpower GF A3 Gold 850W 43
- #67 ThermaltakeThermaltake Smart 500W 40
- #68 CorsairCorsair CX650 38
- #69 ThermaltakeThermaltake Smart 700W 38
- #70 ThermaltakeThermaltake Smart 600W 34
- #71 ThermaltakeThermaltake Smart BM3 Bronze 850W 33
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#42 of 71 graded Power supplies
- #39 ThermaltakeThermaltake Toughpower SFX Platinum 850W 57
- #40 NZXTNZXT C850 SFX Gold 57
- #41 be quiet!be quiet! Dark Power 14 850W 57
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 57
- #43 ThermaltakeThermaltake Toughpower GF A3 Gold 850W 57
- #44 MSIMSI MAG A750BN PCIE5 III 50
- #45 ASRockASRock PRO-750G 50
Value Gaming PC
How much of that you get for today’s price.
#68 of 71 currently priced Power supplies
- #65 CorsairCorsair RM750 White 38
- #66 ThermaltakeThermaltake Toughpower GX2 600W 37
- #67 ThermaltakeThermaltake Smart 500W 34
- #68 ThermaltakeThermaltake Smart BM3 Bronze 850W 34
- #69 ThermaltakeThermaltake Smart 700W 34
- #70 CorsairCorsair CX650 33
- #71 ThermaltakeThermaltake Smart 600W 30
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#42 of 71 graded Power supplies
- #39 ThermaltakeThermaltake Toughpower SFX Platinum 850W 57
- #40 NZXTNZXT C850 SFX Gold 57
- #41 be quiet!be quiet! Dark Power 14 850W 57
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 57
- #43 ThermaltakeThermaltake Toughpower GF A3 Gold 850W 57
- #44 MSIMSI MAG A750BN PCIE5 III 50
- #45 ASRockASRock PRO-750G 50
Value High-end GPU
How much of that you get for today’s price.
#63 of 71 currently priced Power supplies
- #60 ASRockASRock Challenger CL-650G 42
- #61 ASRockASRock PRO-650G 37
- #62 ASRockASRock PRO-650B 31
- #63 ThermaltakeThermaltake Smart BM3 Bronze 850W 30
- #64 CorsairCorsair RM750 White 29
- #65 MSIMSI MAG A650BN 20
- #66 ThermaltakeThermaltake Toughpower GX2 600W 20
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#42 of 71 graded Power supplies
- #39 ThermaltakeThermaltake Toughpower SFX Platinum 850W 57
- #40 NZXTNZXT C850 SFX Gold 57
- #41 be quiet!be quiet! Dark Power 14 850W 57
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 57
- #43 ThermaltakeThermaltake Toughpower GF A3 Gold 850W 57
- #44 MSIMSI MAG A750BN PCIE5 III 50
- #45 ASRockASRock PRO-750G 50
Value Small form factor
How much of that you get for today’s price.
#67 of 71 currently priced Power supplies
- #64 MSIMSI MAG A650BN 21
- #65 ThermaltakeThermaltake Toughpower GX2 600W 19
- #66 MSIMSI MAG A550BN 19
- #67 ThermaltakeThermaltake Smart BM3 Bronze 850W 17
- #68 CorsairCorsair CX650 17
- #69 ThermaltakeThermaltake Smart 700W 16
- #70 ThermaltakeThermaltake Smart 500W 16
Performance Workstation
How much it can do. Price plays no part in this ranking.
#61 of 71 graded Power supplies
- #58 be quiet!be quiet! Pure Power 12 650W 67
- #59 ThermaltakeThermaltake Toughpower GX2 600W 67
- #60 ASRockASRock PRO-850B 33
- #61 ThermaltakeThermaltake Smart BM3 Bronze 850W 33
- #62 MSIMSI MAG A750BN PCIE5 III 33
- #63 ASRockASRock PRO-650B 33
- #64 MSIMSI MAG A650BN 33
Value Workstation
How much of that you get for today’s price.
#67 of 71 currently priced Power supplies
- #64 MSIMSI MAG A650BN 28
- #65 ASRockASRock PRO-650B 26
- #66 MSIMSI MAG A550BN 24
- #67 ThermaltakeThermaltake Smart BM3 Bronze 850W 23
- #68 CorsairCorsair CX650 23
- #69 ThermaltakeThermaltake Smart 700W 16
- #70 ThermaltakeThermaltake Smart 500W 15
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 Value33 | Higher capability MSI MAG A1250GL PCIE5 70 +47% capability · -11% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 100 +0% capability · -59% price |
| Gaming PCScenario capability | GradeA Value34 | Higher capability MSI MAG A1250GL PCIE5 S 73 +47% capability · -11% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 S 100 +0% capability · -59% price |
| High-end GPUScenario capability | GradeC Value30 | Higher capability MSI MAG A1250GL PCIE5 S 94 +47% capability · -11% price | Higher Value with current priorities be quiet! POWER ZONE 2 1200W S 100 +41% capability · -14% price |
| Small form factorScenario capability | GradeF Value17 | Higher capability MSI MAG A1250GL PCIE5 F 36 +47% capability · -11% price | Higher Value with current priorities Thermaltake Toughpower SFX Platinum 850W S 100 +0% capability · -11% price |
| Workstation & 24/7Scenario capability | GradeC Value23 | Higher capability be quiet! Dark Power 14 850W S 86 +200% capability · -2% price | Higher Value with current priorities ASUS ROG LOKI SFX-L 1200W Titanium S 100 +200% capability · +7% 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 A for Gaming PC on the same rubric as the tier list
Consider other options if
- You want strong value with Balanced priorities specificallycompeting products deliver so much more 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 100 against its 33 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 A for Gaming PC on the same rubric as the tier list
Consider other options if
- You want strong value for Gaming PC specificallycompeting products deliver so much more for Gaming PC 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 100 against its 34 for Gaming PC, at CAD 133
- Small form factor is what you actually need it forit grades only F there
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
- High-end GPU is not actually your main job — Gaming PC isit grades C for High-end GPU, but A for Gaming PC
Consider other options if
- High-end GPU is what you actually need it forit grades C there; MSI MAG A1250GL PCIE5 grades S at CAD 290
- You want strong value for High-end GPU specificallycompeting products deliver so much more for High-end GPU 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 modelbe quiet! POWER ZONE 2 1200W holds Relative Value 100 against its 30 for High-end GPU, at CAD 280
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 A for Gaming PC
Consider other options if
- Small form factor is what you actually need it forit grades F there; MSI MAG A1250GL PCIE5 grades F at CAD 290
- 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 modelThermaltake Toughpower SFX Platinum 850W holds Relative Value 100 against its 17 for Small form factor, at CAD 291
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
- Workstation is not actually your main job — Gaming PC isit grades C for Workstation, but A for Gaming PC
Consider other options if
- Workstation is what you actually need it forit grades C there; be quiet! Dark Power 14 850W grades S at CAD 320
- You want strong value for Workstation specificallycompeting products deliver so much more for Workstation per dollar that no price this model realistically trades at reaches the strong-value mark for this job
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 Thermaltake Smart BM3 Bronze 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 Bronze
- ATX standard
- ATX 3.1
Show all specifications
Warranty
- Warranty
- 5 years
- Manufacturer part number
- PS-SPD-0850MNFABU-3
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).
140 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
Thermaltake Smart BM3 Bronze 850W offers a balanced view across an all-round mix of priorities. It ranks #42 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.
Thermaltake Smart BM3 Bronze 850W offers A-grade capability for Gaming PC. It ranks #42 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.
Thermaltake Smart BM3 Bronze 850W offers C-grade capability for High-end GPU. It ranks #42 by capability in the current modelled field. Its clearest measured strength is rated output 850. The C grade is the decisive limitation for this workload.
Thermaltake Smart BM3 Bronze 850W offers F-grade capability for Small form factor. It ranks #42 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.
Thermaltake Smart BM3 Bronze 850W offers C-grade capability for Workstation. It ranks #61 by capability in the current modelled field. Its clearest measured strength is rated output 850. The C grade is the decisive limitation for this workload.
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.