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.
Thermaltake · PSU · ATX 3.x
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 $90 the Thermaltake Smart BM3 Bronze 850W is priced in line with its $90 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 | B&H | New | $90 | 51 | 2026-11-09 | 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 94 graded Power supplies
- #39 ASUSASUS ATX ROG-THOR-1000P3-GAMING 33
- #40 MontechMONTECH BETA 2 850W 28
- #41 PhanteksPhanteks AMP GH 850W Black 28
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 28
- #43 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 28
- #44 ThermaltakeThermaltake Toughpower GT Snow 850W 28
- #45 NZXTNZXT C850 Gold Core 28
Value Balanced
How much of that you get for today’s price.
#36 of 95 currently priced Power supplies
- #33 ThermaltakeThermaltake Toughpower SFX Platinum 750W 53
- #34 CorsairCorsair RM750x 52
- #35 ThermaltakeThermaltake Toughpower GT 1200W 52
- #36 ThermaltakeThermaltake Smart BM3 Bronze 850W 51
- #37 CorsairCorsair RM750x Shift 50
- #38 CorsairCorsair RM850e White 49
- #39 CorsairCorsair CX650 48
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#42 of 94 graded Power supplies
- #39 ASUSASUS ATX ROG-THOR-1000P3-GAMING 33
- #40 MontechMONTECH BETA 2 850W 28
- #41 PhanteksPhanteks AMP GH 850W Black 28
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 28
- #43 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 28
- #44 ThermaltakeThermaltake Toughpower GT Snow 850W 28
- #45 NZXTNZXT C850 Gold Core 28
Value Gaming PC
How much of that you get for today’s price.
#36 of 95 currently priced Power supplies
- #33 ThermaltakeThermaltake Toughpower SFX Platinum 750W 52
- #34 MSIMSI MAG A650BN 52
- #35 CorsairCorsair RM750x 52
- #36 ThermaltakeThermaltake Smart BM3 Bronze 850W 51
- #37 CorsairCorsair RM850e White 50
- #38 CorsairCorsair RM750x Shift 49
- #39 Super FlowerSuper Flower 750W Leadex III Gold 48
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#42 of 94 graded Power supplies
- #39 ASUSASUS ATX ROG-THOR-1000P3-GAMING 33
- #40 MontechMONTECH BETA 2 850W 28
- #41 PhanteksPhanteks AMP GH 850W Black 28
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 28
- #43 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 28
- #44 ThermaltakeThermaltake Toughpower GT Snow 850W 28
- #45 NZXTNZXT C850 Gold Core 28
Value High-end GPU
How much of that you get for today’s price.
#45 of 95 currently priced Power supplies
- #42 CorsairCorsair RM1000x Shift 70
- #43 ThermaltakeThermaltake Toughpower GT Snow 1200W 70
- #44 ThermaltakeThermaltake Smart BM3 Bronze 750W 69
- #45 ThermaltakeThermaltake Smart BM3 Bronze 850W 68
- #46 Super FlowerSuper Flower 750W Leadex III Gold 67
- #47 ThermaltakeThermaltake Toughpower SFX Platinum 850W 67
- #48 NZXTNZXT C1000 Gold Core 66
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#42 of 92 graded Power supplies
- #39 ASUSASUS ATX ROG-THOR-1000P3-GAMING 33
- #40 MontechMONTECH BETA 2 850W 28
- #41 PhanteksPhanteks AMP GH 850W Black 28
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 28
- #43 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 28
- #44 ThermaltakeThermaltake Toughpower GT Snow 850W 28
- #45 NZXTNZXT C850 Gold Core 28
Value Small form factor
How much of that you get for today’s price.
#29 of 95 currently priced Power supplies
- #26 ThermaltakeThermaltake Toughpower GT Snow 850W 51
- #27 NZXTNZXT C850 SFX Gold 50
- #28 ThermaltakeThermaltake Toughpower GT 750W ATX 3.1 50
- #29 ThermaltakeThermaltake Smart BM3 Bronze 850W 49
- #30 Cooler MasterCooler Master V850 SFX Gold 48
- #31 PhanteksPhanteks AMP GH 750W White 48
- #32 CorsairCorsair RM650e 48
Performance Workstation
How much it can do. Price plays no part in this ranking.
#73 of 88 graded Power supplies
- #70 CorsairCorsair RM650e 67
- #71 ThermaltakeThermaltake Toughpower GX2 600W 67
- #72 MontechMONTECH BETA 2 850W 33
- #73 ThermaltakeThermaltake Smart BM3 Bronze 850W 33
- #74 MontechMONTECH BETA 2 750W 33
- #75 CorsairCorsair CX750 33
- #76 CorsairCorsair CX750M ATX 3.1 33
Value Workstation
How much of that you get for today’s price.
#56 of 95 currently priced Power supplies
- #53 ThermaltakeThermaltake Smart BM3 Bronze 750W 72
- #54 ASUSASUS TUF Gaming 1000W Gold 71
- #55 ThermaltakeThermaltake Toughpower GF A3 Gold 1050W 71
- #56 ThermaltakeThermaltake Smart BM3 Bronze 850W 71
- #57 ASUSASUS ROG Strix 1000W Platinum 71
- #58 ASUSASUS ROG LOKI SFX-L 1200W Titanium 70
- #59 ThermaltakeThermaltake Smart 700W 70
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 Value51 | — | Higher Value with current priorities Phanteks AMP GH 850W Black 75 +0% capability · -6% price |
| Gaming PCScenario capability | GradeA Value51 | — | Higher Value with current priorities MONTECH BETA 2 850W S 76 +0% capability · -33% price |
| High-end GPUScenario capability | GradeC Value68 | — | Higher Value with current priorities Phanteks AMP GH 850W Black B 95 +0% capability · -6% price |
| Small form factorScenario capability | GradeF Value49 | — | Higher Value with current priorities MONTECH BETA 2 850W F 68 +0% capability · -33% price |
| Workstation & 24/7Scenario capability | GradeC Value71 | Higher capability ASRock PRO-650G B 95 +100% capability · -50% price | Higher Value with current priorities Phanteks AMP GH 850W Black B 100 +100% capability · -6% 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 specificallyat today's market no realistic price for this model reaches strong value with Balanced priorities — the calculation only gets there near $57, against a cheapest tracked $90
- Value for money matters more to you than this exact modelPhanteks AMP GH 850W Black holds Relative Value 75 against its 51 with Balanced priorities, at $85
- Not the pick if Small form factor is your main useit 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 specificallyat today's market no realistic price for this model reaches strong value for Gaming PC — the calculation only gets there near $57, against a cheapest tracked $90
- Value for money matters more to you than this exact modelMONTECH BETA 2 850W holds Relative Value 76 against its 51 for Gaming PC, at $60
- Not the pick if Small form factor is your main useit 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
- Strong-value threshold: ~$65$65 is where Relative Value reaches 80 for High-end GPU, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Not the pick if High-end GPU is your main useit grades C there; Phanteks AMP GH 850W Black grades B at $85
- Current price sits $25 above the strong-value threshold (~$65)cheapest tracked $90 against a $65 calculated threshold for High-end GPU
- Value for money matters more to you than this exact modelPhanteks AMP GH 850W Black holds Relative Value 95 against its 68 for High-end GPU, at $85
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
- Not the pick if Small form factor is your main useit grades F there; Phanteks AMP GH 850W Black grades F at $85
- 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 $56, against a cheapest tracked $90
- Value for money matters more to you than this exact modelMONTECH BETA 2 850W holds Relative Value 68 against its 49 for Small form factor, at $60
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
- Strong-value threshold: ~$70$70 is where Relative Value reaches 80 for Workstation, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Not the pick if Workstation is your main useit grades C there; ASRock PRO-650G grades B at $45
- Current price sits $20 above the strong-value threshold (~$70)cheapest tracked $90 against a $70 calculated threshold for Workstation
- Value for money matters more to you than this exact modelPhanteks AMP GH 850W Black holds Relative Value 100 against its 71 for Workstation, at $85
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 2026-11-02–2026-11-09
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).
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. MONTECH BETA 2 850W 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. MONTECH BETA 2 850W 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 #73 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 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 2026-11-02–2026-11-09 · 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.