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.
Phanteks · PSU · ATX 3.x
Retailer photo of Phanteks AMP GH 850W Black. View this offer in Where to buy
Works well for: Gaming PC
Trade-offs: Current price sits $6 above the strong-value threshold (~$79)
- 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 | 75 | 2026-11-08 | 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.
#41 of 94 graded Power supplies
- #38 ASUSASUS 1000W ROG Loki SFX-L 1000W Platinum 33
- #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
Value Balanced
How much of that you get for today’s price.
#7 of 95 currently priced Power supplies
- #4 MontechMONTECH BETA 2 550W 77
- #5 ThermaltakeThermaltake Toughpower GF A3 Gold 750W 75
- #6 ThermaltakeThermaltake Smart 500W 75
- #7 PhanteksPhanteks AMP GH 850W Black 75
- #8 ASRockASRock Challenger CL-650G 73
- #9 ThermaltakeThermaltake Smart 600W 73
- #10 MontechMONTECH BETA 2 650W 72
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#41 of 94 graded Power supplies
- #38 ASUSASUS 1000W ROG Loki SFX-L 1000W Platinum 33
- #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
Value Gaming PC
How much of that you get for today’s price.
#6 of 95 currently priced Power supplies
- #3 ASRockASRock PRO-650B 93
- #4 MontechMONTECH BETA 2 550W 80
- #5 MontechMONTECH BETA 2 850W 76
- #6 PhanteksPhanteks AMP GH 850W Black 75
- #7 MontechMONTECH BETA 2 650W 75
- #8 ThermaltakeThermaltake Toughpower GF A3 Gold 750W 72
- #9 ASRockASRock Challenger CL-650G 72
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#41 of 94 graded Power supplies
- #38 ASUSASUS 1000W ROG Loki SFX-L 1000W Platinum 33
- #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
Value High-end GPU
How much of that you get for today’s price.
#2 of 95 currently priced Power supplies
- #1 ASRockASRock PRO-750G 100
- #2 PhanteksPhanteks AMP GH 850W Black 95
- #3 ASRockASRock PRO-650G 92
- #4 NZXTNZXT C1200 Gold ATX 3.1 89
- #5 CorsairCorsair RM750e White 87
- #6 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 87
- #7 MontechMONTECH BETA 2 850W 85
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#41 of 92 graded Power supplies
- #38 ASUSASUS 1000W ROG Loki SFX-L 1000W Platinum 33
- #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
Value Small form factor
How much of that you get for today’s price.
#15 of 95 currently priced Power supplies
- #12 ThermaltakeThermaltake Toughpower GF A3 Gold 750W 67
- #13 ThermaltakeThermaltake Smart 700W 66
- #14 ThermaltakeThermaltake Toughpower GX2 600W 64
- #15 PhanteksPhanteks AMP GH 850W Black 62
- #16 MSIMSI MAG A650BN 62
- #17 ThermaltakeThermaltake Toughpower SFX Platinum 750W 62
- #18 CorsairCorsair CX750M ATX 3.1 59
Performance Workstation
How much it can do. Price plays no part in this ranking.
#42 of 88 graded Power supplies
- #39 NZXTNZXT C1000 Gold Core 67
- #40 CorsairCorsair RM1000x Shift 67
- #41 ASUSASUS TUF Gaming 1000W Gold 67
- #42 PhanteksPhanteks AMP GH 850W Black 67
- #43 ThermaltakeThermaltake Toughpower GT 850W ATX 3.1 67
- #44 ThermaltakeThermaltake Toughpower GT Snow 850W 67
- #45 NZXTNZXT C850 Gold Core 67
Value Workstation
How much of that you get for today’s price.
#1 of 95 currently priced Power supplies
- #1 PhanteksPhanteks AMP GH 850W Black 100
- #2 ThermaltakeThermaltake Toughpower GF A3 Gold 750W 96
- #3 NZXTNZXT C1200 Gold ATX 3.1 95
- #4 ASRockASRock PRO-650G 95
- #5 ASRockASRock PRO-750G 94
- #6 NZXTNZXT C1000 Gold ATX 3.1 91
- #7 CorsairCorsair RM750e White 91
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 Value with current priorities |
|---|---|---|
| Balanced (all-round)Weighted all-round view | GradeNo grade Value75 | — |
| Gaming PCScenario capability | GradeS Value75 | — |
| High-end GPUScenario capability | GradeB Value95 | — |
| Small form factorScenario capability | GradeF Value62 | Higher Value with current priorities MONTECH BETA 2 850W F 68 +0% capability · -30% price |
| Workstation & 24/7Scenario capability | GradeB Value100 | — |
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: ~$79$79 is where Relative Value reaches 80 with Balanced priorities, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Current price sits $6 above the strong-value threshold (~$79)cheapest tracked $85 against a $79 calculated threshold with Balanced priorities
- Value for money matters more to you than this exact modelMONTECH BETA 2 850W holds Relative Value 70 against its 75 with Balanced priorities, at $60
- 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: ~$79$79 is where Relative Value reaches 80 for Gaming PC, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Current price sits $6 above the strong-value threshold (~$79)cheapest tracked $85 against a $79 calculated threshold for Gaming PC
- Value for money matters more to you than this exact modelMONTECH BETA 2 850W holds Relative Value 76 against its 75 for Gaming PC, at $60
- 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 $85 against a $119 threshold for High-end GPU
Consider other options if
- Value for money matters more to you than this exact modelMONTECH BETA 2 850W holds Relative Value 85 against its 95 for High-end GPU, 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
- Small form factor is not actually your main job — Gaming PC isit grades F for Small form factor, but S for Gaming PC
- Strong-value threshold: ~$66$66 is where Relative Value reaches 80 for Small form factor, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Not the pick if Small form factor is your main useGraded F; Thermaltake Toughpower GF A3 Gold 750W reaches F. Check on Amazon.
- Current price sits $19 above the strong-value threshold (~$66)cheapest tracked $85 against a $66 calculated threshold for Small form factor
- Value for money matters more to you than this exact modelMONTECH BETA 2 850W holds Relative Value 68 against its 62 for Small form factor, at $60
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 $133 threshold for Workstation
Consider other options if
- Value for money matters more to you than this exact modelASRock PRO-650G holds Relative Value 95 against its 100 for Workstation, at $45
- 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 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 2026-11-02–2026-11-09
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
Phanteks AMP GH 850W Black offers a balanced view across an all-round mix of priorities. It ranks #41 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.
Phanteks AMP GH 850W Black offers S-grade capability for Gaming PC. It ranks #41 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.
Phanteks AMP GH 850W Black offers B-grade capability for High-end GPU. It ranks #41 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.
Phanteks AMP GH 850W Black offers F-grade capability for Small form factor. It ranks #41 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 #42 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 2026-11-02–2026-11-09 · 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.