Retailer photo of Phanteks AMP GH 850W Black. View this offer in Where to buy
Phanteks · PSU · ATX 3.x
Phanteks AMP GH 850W Black
The current Phanteks AMP GH 850W Black price from retailers, its key specifications, and how it performs for each job.
Works well for: Gaming PC
Trade-offs: Value for money matters more to you than this exact model
- 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 $85 the Phanteks AMP GH 850W Black is priced in line with its $85 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
Phanteks AMP GH 850W Black: 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 |
|---|---|---|---|---|---|---|
| Phanteks AMP GH 850W Black | Newegg | New | $85 | 100 | 2026-10-16 | View offer → |
| Phanteks AMP GH 850W BlackMultiple 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.
#29 of 77 graded Power supplies
- #26 CorsairCorsair RM1000x ATX 2.53 61
- #27 be quiet!be quiet! DARK POWER 14 1000W 61
- #28 ASRockASRock PRO-850B 52
- #29 PhanteksPhanteks AMP GH 850W Black 52
- #30 be quiet!be quiet! Pure Power 12 850W 52
- #31 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 52
- #32 ThermaltakeThermaltake Smart BM3 Bronze 850W 52
Value Balanced
How much of that you get for today’s price.
#1 of 77 currently priced Power supplies
- #1 PhanteksPhanteks AMP GH 850W Black 100
- #2 PhanteksPhanteks AMP GH 750W Black 100
- #3 be quiet!be quiet! POWER ZONE 2 750W 99
- #4 be quiet!be quiet! PURE POWER 13 M 750W 98
- #5 ASRockASRock PRO-750G 98
- #6 PhanteksPhanteks AMP GH 750W White 96
- #7 PhanteksPhanteks AMP GH 850W White 94
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#29 of 77 graded Power supplies
- #26 CorsairCorsair RM1000x ATX 2.53 61
- #27 be quiet!be quiet! DARK POWER 14 1000W 61
- #28 ASRockASRock PRO-850B 52
- #29 PhanteksPhanteks AMP GH 850W Black 52
- #30 be quiet!be quiet! Pure Power 12 850W 52
- #31 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 52
- #32 ThermaltakeThermaltake Smart BM3 Bronze 850W 52
Value Gaming PC
How much of that you get for today’s price.
#2 of 77 currently priced Power supplies
- #1 ASRockASRock PRO-750G 100
- #2 PhanteksPhanteks AMP GH 850W Black 99
- #3 PhanteksPhanteks AMP GH 750W Black 99
- #4 be quiet!be quiet! PURE POWER 13 M 750W 97
- #5 be quiet!be quiet! POWER ZONE 2 750W 97
- #6 PhanteksPhanteks AMP GH 750W White 96
- #7 PhanteksPhanteks AMP GH 850W White 94
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#29 of 77 graded Power supplies
- #26 CorsairCorsair RM1000x ATX 2.53 61
- #27 be quiet!be quiet! DARK POWER 14 1000W 61
- #28 ASRockASRock PRO-850B 52
- #29 PhanteksPhanteks AMP GH 850W Black 52
- #30 be quiet!be quiet! Pure Power 12 850W 52
- #31 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 52
- #32 ThermaltakeThermaltake Smart BM3 Bronze 850W 52
Value High-end GPU
How much of that you get for today’s price.
#10 of 77 currently priced Power supplies
- #7 be quiet!be quiet! POWER ZONE 2 750W 86
- #8 be quiet!be quiet! DARK POWER PRO 14 IO 1600W 86
- #9 MSIMSI MAG A1200PLS PCIE5 86
- #10 PhanteksPhanteks AMP GH 850W Black 86
- #11 be quiet!be quiet! Pure Power 13 M 1000W 85
- #12 be quiet!be quiet! POWER ZONE 2 850W 85
- #13 MSIMSI MAG A1000PLS PCIE5 85
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#29 of 77 graded Power supplies
- #26 CorsairCorsair RM1000x ATX 2.53 61
- #27 be quiet!be quiet! DARK POWER 14 1000W 61
- #28 ASRockASRock PRO-850B 52
- #29 PhanteksPhanteks AMP GH 850W Black 52
- #30 be quiet!be quiet! Pure Power 12 850W 52
- #31 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 52
- #32 ThermaltakeThermaltake Smart BM3 Bronze 850W 52
Value Small form factor
How much of that you get for today’s price.
#5 of 77 currently priced Power supplies
- #2 ThermaltakeThermaltake Toughpower SFX Platinum 750W 100
- #3 ThermaltakeThermaltake Toughpower SFX Platinum 1000W 99
- #4 Cooler MasterCooler Master V850 SFX Gold 79
- #5 PhanteksPhanteks AMP GH 850W Black 37
- #6 PhanteksPhanteks AMP GH 750W Black 37
- #7 ASRockASRock PRO-750G 36
- #8 be quiet!be quiet! POWER ZONE 2 750W 36
Performance Workstation
How much it can do. Price plays no part in this ranking.
#33 of 77 graded Power supplies
- #30 NZXTNZXT C1000 Gold Core 67
- #31 ASUSASUS TUF Gaming 1000W Gold 67
- #32 CorsairCorsair RM1000x ATX 2.53 67
- #33 PhanteksPhanteks AMP GH 850W Black 67
- #34 be quiet!be quiet! Pure Power 12 850W 67
- #35 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 67
- #36 PhanteksPhanteks AMP GH 850W White 67
Value Workstation
How much of that you get for today’s price.
#17 of 77 currently priced Power supplies
- #14 be quiet!be quiet! PURE POWER 13 M 750W 88
- #15 be quiet!be quiet! Pure Power 13 M 850W 87
- #16 be quiet!be quiet! Pure Power 13 M 1000W 86
- #17 PhanteksPhanteks AMP GH 850W Black 85
- #18 be quiet!be quiet! Pure Power 12 850W 85
- #19 NZXTNZXT C850 Gold ATX 3.1 84
- #20 CorsairCorsair HX1200i 82
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 Value100 | Higher capability Thermaltake Toughpower GT Snow 1000W 85 +18% capability · +18% price | — |
| Gaming PCScenario capability | GradeS Value99 | Higher capability Thermaltake Toughpower GT Snow 1000W S 87 +18% capability · +18% price | — |
| High-end GPUScenario capability | GradeB Value86 | Higher capability Thermaltake Toughpower GT Snow 1000W A 78 +18% capability · +18% price | — |
| Small form factorScenario capability | GradeF Value37 | Higher capability Thermaltake Toughpower GT Snow 1000W F 33 +18% capability · +18% price | — |
| Workstation & 24/7Scenario capability | GradeB Value85 | Higher capability be quiet! POWER ZONE 2 750W B 99 +25% capability · +18% price | Higher Value with current priorities be quiet! PURE POWER 13 M 750W B 88 +0% 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 S for Gaming PC on the same rubric as the tier list
- Today's price already clears the strong-value markcheapest tracked $85 against a $123 threshold with Balanced priorities
Consider other options if
- Value for money matters more to you than this exact modelASRock PRO-850B holds Relative Value 70 against its 100 with Balanced priorities, at $55
- 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
- Today's price already clears the strong-value markcheapest tracked $85 against a $126 threshold for Gaming PC
Consider other options if
- Value for money matters more to you than this exact modelASRock PRO-850B holds Relative Value 74 against its 99 for Gaming PC, at $55
- 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 Snow 1000W offers 1000 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
- Today's price already clears the strong-value markcheapest tracked $85 against a $103 threshold for High-end GPU
Consider other options if
- Value for money matters more to you than this exact modelASRock PRO-850B holds Relative Value 47 against its 86 for High-end GPU, at $55
- 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 Snow 1000W offers 1000 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 Snow 1000W grades F at $100
- 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 modelASRock PRO-850B holds Relative Value 23 against its 37 for Small form factor, at $55
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 $85 against a $100 threshold for Workstation
Consider other options if
- 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 Phanteks AMP GH 850W Black
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
- 840 W
- 80 PLUS rating
- 80 PLUS Gold
- ATX standard
- ATX 3.1
Show all specifications
Warranty
- Warranty
- 8 years
- Manufacturer part number
- PH-P850GH_BK01
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-10-10–2026-10-17
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
Phanteks AMP GH 850W Black offers a balanced view across an all-round mix of priorities. It ranks #29 by capability in the current modelled field. Its clearest measured strength is rated output 850. ASRock PRO-850B currently clears the same practical bar with stronger Relative Value.
Phanteks AMP GH 850W Black offers S-grade capability for Gaming PC. It ranks #29 by capability in the current modelled field. Its clearest measured strength is rated output 850. ASRock PRO-850B currently clears the same practical bar with stronger Relative Value.
Phanteks AMP GH 850W Black offers B-grade capability for High-end GPU. It ranks #29 by capability in the current modelled field. Its clearest measured strength is rated output 850. ASRock PRO-850B currently clears the same practical bar with stronger Relative Value.
Phanteks AMP GH 850W Black offers F-grade capability for Small form factor. It ranks #29 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.
Phanteks AMP GH 850W Black offers B-grade capability for Workstation. It ranks #33 by capability in the current modelled field. Its clearest measured strength is rated output 850. ASRock PRO-750G 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 2026-10-10–2026-10-17 · 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.