Retailer photo of Thermaltake Toughpower SFX Platinum 850W. View this offer in Where to buy
Thermaltake · PSU · SFX
Thermaltake Toughpower SFX Platinum 850W
The current Thermaltake Toughpower SFX Platinum 850W price from retailers, its key specifications, and how it performs for each job.
Works well for: Gaming PC, Small form factor, Workstation & 24/7
Trade-offs: you want strong value with Balanced priorities specifically
- Rated output
- 850 W
- 80 PLUS rating
- 80 PLUS Platinum
- Size
- SFX
- 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 291 the Thermaltake Toughpower SFX Platinum 850W is priced in line with its CAD 291 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 Toughpower SFX Platinum 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 Toughpower SFX Platinum 850W | Newegg | New | CAD 291 | 61 | 2026-10-16 | View offer → |
| Thermaltake Toughpower SFX Platinum 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.
#39 of 71 graded Power supplies
- #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
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 57
Value Balanced
How much of that you get for today’s price.
#51 of 71 currently priced Power supplies
- #48 ThermaltakeThermaltake Toughpower GT Snow 1000W 64
- #49 RosewillRosewill VSB650 63
- #50 ASRockASRock PRO-850B 62
- #51 ThermaltakeThermaltake Toughpower SFX Platinum 850W 61
- #52 NZXTNZXT C850 SFX Gold 61
- #53 CorsairCorsair HX1000i 61
- #54 MSIMSI MAG A650BN PCIE5 III 60
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#39 of 71 graded Power supplies
- #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
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 57
Value Gaming PC
How much of that you get for today’s price.
#51 of 71 currently priced Power supplies
- #48 RosewillRosewill VSB650 67
- #49 be quiet!be quiet! Pure Power 12 650W 66
- #50 ASRockASRock Challenger CL-650G 65
- #51 ThermaltakeThermaltake Toughpower SFX Platinum 850W 64
- #52 MSIMSI MAG A650BN PCIE5 III 64
- #53 NZXTNZXT C850 SFX Gold 64
- #54 CorsairCorsair HX1000i 63
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#39 of 71 graded Power supplies
- #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
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 57
Value High-end GPU
How much of that you get for today’s price.
#48 of 71 currently priced Power supplies
- #45 NZXTNZXT C850 SFX Gold 72
- #46 ThermaltakeThermaltake Toughpower GT Snow 750W 71
- #47 ThermaltakeThermaltake Toughpower GT 750W ATX 3.1 71
- #48 ThermaltakeThermaltake Toughpower SFX Platinum 850W 71
- #49 ASUSASUS TUF Gaming 1000W Gold 68
- #50 be quiet!be quiet! Pure Power 12 750W 68
- #51 ASRockASRock PRO-750G 65
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#39 of 71 graded Power supplies
- #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
- #42 ThermaltakeThermaltake Smart BM3 Bronze 850W 57
Value Small form factor
How much of that you get for today’s price.
#1 of 71 currently priced Power supplies
- #1 ThermaltakeThermaltake Toughpower SFX Platinum 850W 100
- #2 NZXTNZXT C850 SFX Gold 99
- #3 ThermaltakeThermaltake Toughpower SFX Platinum 1000W 79
- #4 ASUSASUS ROG LOKI SFX-L 1200W Titanium 75
- #5 Cooler MasterCooler Master MWE Gold 850 V3 45
- #6 be quiet!be quiet! POWER ZONE 2 750W 42
- #7 PhanteksPhanteks AMP GH 850W Black 42
Performance Workstation
How much it can do. Price plays no part in this ranking.
#15 of 71 graded Power supplies
- #12 CorsairCorsair HX1000i 83
- #13 ThermaltakeThermaltake Toughpower SFX Platinum 1000W 83
- #14 be quiet!be quiet! POWER ZONE 2 850W 83
- #15 ThermaltakeThermaltake Toughpower SFX Platinum 850W 83
- #16 be quiet!be quiet! POWER ZONE 2 750W 83
- #17 MSIMSI MAG A1250GL PCIE5 67
- #18 ThermaltakeThermaltake Toughpower GT 1200W 67
Value Workstation
How much of that you get for today’s price.
#42 of 71 currently priced Power supplies
- #39 NZXTNZXT C850 Gold Core 65
- #40 CorsairCorsair RM850e White 65
- #41 CorsairCorsair RM750e White 65
- #42 ThermaltakeThermaltake Toughpower SFX Platinum 850W 64
- #43 CorsairCorsair RM1000e White 64
- #44 ThermaltakeThermaltake Toughpower GT 1200W 64
- #45 be quiet!be quiet! Pure Power 12 650W 63
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 Value61 | Higher capability MSI MAG A1250GL PCIE5 70 +47% capability · +0% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 100 +0% capability · -54% price |
| Gaming PCScenario capability | GradeS Value64 | Higher capability MSI MAG A1250GL PCIE5 S 73 +47% capability · +0% price | Higher Value with current priorities Cooler Master MWE Gold 850 V3 S 100 +0% capability · -54% price |
| High-end GPUScenario capability | GradeB Value71 | Higher capability MSI MAG A1250GL PCIE5 S 94 +47% capability · +0% price | Higher Value with current priorities be quiet! POWER ZONE 2 1200W S 100 +41% capability · -4% price |
| Small form factorScenario capability | GradeS Value100 | Higher capability MSI MAG A1250GL PCIE5 F 36 +47% capability · +0% price | — |
| Workstation & 24/7Scenario capability | GradeA Value64 | Higher capability be quiet! Dark Power 14 850W S 86 +20% capability · +10% price | Higher Value with current priorities MSI MAG A1000PLS PCIE5 A 96 +0% capability · -24% 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
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 CAD 186, against a cheapest tracked CAD 291
- Value for money matters more to you than this exact modelCooler Master MWE Gold 850 V3 holds Relative Value 100 against its 61 with Balanced priorities, at CAD 133
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 194CAD 194 is where Relative Value reaches 80 for Gaming PC, in the 2026-10-16 offer frame
Consider other options if
- Current price sits CAD 97 above the strong-value threshold (~CAD 194)cheapest tracked CAD 291 against a CAD 194 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 64 for Gaming PC, at CAD 133
- You need more Rated output than 850 Wthis product is fixed at 850 W; MSI MAG A1250GL PCIE5 offers 1250 W inside the same budget
Works well if
- High-end GPU is your main prioritygraded B for High-end GPU on the same rubric as the tier list
- Strong-value threshold: ~CAD 206CAD 206 is where Relative Value reaches 80 for High-end GPU, in the 2026-10-16 offer frame
Consider other options if
- Current price sits CAD 85 above the strong-value threshold (~CAD 206)cheapest tracked CAD 291 against a CAD 206 calculated threshold for High-end GPU
- Value for money matters more to you than this exact modelbe quiet! POWER ZONE 2 1200W holds Relative Value 100 against its 71 for High-end GPU, at CAD 280
- You need more Rated output than 850 Wthis product is fixed at 850 W; MSI MAG A1250GL PCIE5 offers 1250 W inside the same budget
Works well if
- Small form factor is your main prioritygraded S for Small form factor on the same rubric as the tier list
- Today's price already clears the strong-value markcheapest tracked CAD 291 against a CAD 455 threshold for Small form factor
- Nothing in this budget scores better for Small form factorno graded product within the 10% budget envelope around CAD 291 reaches a higher Relative Value for Small form factor
Consider other options if
- You need more Rated output than 850 Wthis product is fixed at 850 W; MSI MAG A1250GL PCIE5 offers 1250 W inside the same budget
Works well if
- Workstation is your main prioritygraded A for Workstation on the same rubric as the tier list
Consider other options if
- You want strong value for Workstation specificallyat today's market no realistic price for this model reaches strong value for Workstation — the calculation only gets there near CAD 169, against a cheapest tracked CAD 291
- Value for money matters more to you than this exact modelMSI MAG A1000PLS PCIE5 holds Relative Value 96 against its 64 for Workstation, at CAD 220
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 Toughpower SFX Platinum 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 Platinum
- ATX standard
- ATX 3.1
Show all specifications
Warranty
- Warranty
- 7 years
- Manufacturer part number
- PS-STP-0850FNFAPU-1
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 SFX power supplies
The size is set by the case: ATX cases take ATX units, small cases take SFX (some also SFX-L).
103 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 Toughpower SFX Platinum 850W offers a balanced view across an all-round mix of priorities. It ranks #39 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 Toughpower SFX Platinum 850W offers S-grade capability for Gaming PC. It ranks #39 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 Toughpower SFX Platinum 850W offers B-grade capability for High-end GPU. It ranks #39 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 Toughpower SFX Platinum 850W offers S-grade capability for Small form factor. It ranks #39 by capability in the current modelled field. Its clearest measured strength is rated output 850.
Thermaltake Toughpower SFX Platinum 850W offers A-grade capability for Workstation. It ranks #15 by capability in the current modelled field. Its clearest measured strength is rated output 850. be quiet! POWER ZONE 2 850W 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.