Gigabyte 550W GP-P550B
The current Gigabyte 550W GP-P550B price from retailers, its key specifications, and how it performs for each job.
Gigabyte · PSU · ATX 2.x
Retailer photo of Gigabyte 550W GP-P550B. View this offer in Where to buy
Trade-offs: you want strong value with Balanced priorities specifically
- Rated output
- 550 W
- 80 PLUS rating
- 80 PLUS Bronze
- Size
- ATX
- ATX standard
- ATX 2.31
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 $102 the Gigabyte 550W GP-P550B is priced in line with its $102 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
Gigabyte 550W GP-P550B: 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 |
|---|---|---|---|---|---|---|
| Gigabyte 550W GP-P550B | Newegg | New | $102 | 29 | 2026-11-08 | View offer → |
| Gigabyte 550W GP-P550BMultiple 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.
#92 of 94 graded Power supplies
- #88 ThermaltakeThermaltake Smart 600W 20
- #89 ThermaltakeThermaltake Toughpower GX2 600W 20
- #90 MontechMONTECH BETA 2 550W 18
- #91 MSIMSI MAG A550BN 18
- #92 GigabyteGigabyte 550W GP-P550B 18
- #93 ThermaltakeThermaltake Smart 500W 17
- #94 GigabyteGigabyte 450W GP-P450B 15
Value Balanced
How much of that you get for today’s price.
#70 of 95 currently priced Power supplies
- #67 GigabyteGigabyte 450W GP-P450B 31
- #68 ASUSASUS ROG Strix 1000W Platinum 30
- #69 GigabyteGigabyte 1000W GP-UD1000GM PG5 v2 29
- #70 GigabyteGigabyte 550W GP-P550B 29
- #71 Super FlowerSuper Flower 1300W Leadex III Gold 28
- #72 CorsairCorsair HX1200i 27
- #73 Super FlowerSuper Flower 1200W Leadex VII Platinum PRO Black 26
Performance Gaming PC
How much it can do. Price plays no part in this ranking.
#92 of 94 graded Power supplies
- #88 ThermaltakeThermaltake Smart 600W 20
- #89 ThermaltakeThermaltake Toughpower GX2 600W 20
- #90 MontechMONTECH BETA 2 550W 18
- #91 MSIMSI MAG A550BN 18
- #92 GigabyteGigabyte 550W GP-P550B 18
- #93 ThermaltakeThermaltake Smart 500W 17
- #94 GigabyteGigabyte 450W GP-P450B 15
Value Gaming PC
How much of that you get for today’s price.
#71 of 95 currently priced Power supplies
- #68 GigabyteGigabyte 450W GP-P450B 29
- #69 ASUSASUS ROG Strix 1000W Platinum 29
- #70 GigabyteGigabyte 1000W GP-UD1000GM PG5 v2 29
- #71 GigabyteGigabyte 550W GP-P550B 28
- #72 Super FlowerSuper Flower 1200W Leadex VII Platinum PRO Black 27
- #73 CorsairCorsair HX1200i 26
- #74 ASUSASUS 1000W TUF Gaming 1000W Gold White Edition 26
Performance High-end GPU
How much it can do. Price plays no part in this ranking.
#92 of 94 graded Power supplies
- #88 ThermaltakeThermaltake Smart 600W 20
- #89 ThermaltakeThermaltake Toughpower GX2 600W 20
- #90 MontechMONTECH BETA 2 550W 18
- #91 MSIMSI MAG A550BN 18
- #92 GigabyteGigabyte 550W GP-P550B 18
- #93 ThermaltakeThermaltake Smart 500W 17
- #94 GigabyteGigabyte 450W GP-P450B 15
Value High-end GPU
How much of that you get for today’s price.
#81 of 95 currently priced Power supplies
- #78 ASUSASUS 750W ROG LOKI Platinum 40
- #79 HPEHPE P03178-B21 1000W 40
- #80 ASUSASUS 1200W TUF Gaming 1200W Gold 39
- #81 GigabyteGigabyte 550W GP-P550B 39
- #82 GigabyteGigabyte 450W GP-P450B 39
- #83 GigabyteGigabyte 750W GP-UD750GM PG5 39
- #84 Super FlowerSuper Flower 1700W Leadex Titanium 38
Performance Small form factor
How much it can do. Price plays no part in this ranking.
#90 of 92 graded Power supplies
- #86 ThermaltakeThermaltake Smart 600W 20
- #87 ThermaltakeThermaltake Toughpower GX2 600W 20
- #88 MontechMONTECH BETA 2 550W 18
- #89 MSIMSI MAG A550BN 18
- #90 GigabyteGigabyte 550W GP-P550B 18
- #91 ThermaltakeThermaltake Smart 500W 17
- #92 GigabyteGigabyte 450W GP-P450B 15
Value Small form factor
How much of that you get for today’s price.
#54 of 95 currently priced Power supplies
- #51 be quiet!be quiet! POWER ZONE 2 850W 36
- #52 be quiet!be quiet! Pure Power 13 M 1000W 36
- #53 CorsairCorsair RM1000e White 35
- #54 GigabyteGigabyte 550W GP-P550B 34
- #55 HPEHPE P38995-B21 800W 33
- #56 MSIMSI MAG A1250GL PCIE5 33
- #57 Super FlowerSuper Flower 850W Leadex III Gold ATX 3.1 ) 33
Performance Workstation
How much it can do. Price plays no part in this ranking.
#84 of 88 graded Power supplies
- #81 CorsairCorsair CX650 33
- #82 MontechMONTECH BETA 2 550W 33
- #83 MSIMSI MAG A550BN 33
- #84 GigabyteGigabyte 550W GP-P550B 33
- #85 GigabyteGigabyte 450W GP-P450B 33
- #86 ThermaltakeThermaltake Smart 700W 17
- #87 ThermaltakeThermaltake Smart 600W 17
Value Workstation
How much of that you get for today’s price.
#81 of 95 currently priced Power supplies
- #78 ASUSASUS 750W ROG LOKI Platinum 52
- #79 GigabyteGigabyte 850W GP-P850GM 48
- #80 GigabyteGigabyte 450W GP-P450B 47
- #81 GigabyteGigabyte 550W GP-P550B 47
- #82 HPEHPE P38997-B21 1600W 45
- #83 Super FlowerSuper Flower Leadex VII Gold 1000W SF-1000F14XG 42
- #84 GigabyteGigabyte 750W GP-UD750GM PG5 42
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 Value29 | Higher capability Thermaltake Toughpower GT 1200W 52 +118% capability · +18% price | Higher Value with current priorities ASRock PRO-650G 100 +18% capability · -56% price |
| Gaming PCScenario capability | GradeC Value28 | Higher capability Thermaltake Toughpower GT 1200W S 53 +118% capability · +18% price | Higher Value with current priorities ASRock PRO-650G B 100 +18% capability · -56% price |
| High-end GPUScenario capability | GradeF Value39 | Higher capability Thermaltake Toughpower GT 1200W S 83 +118% capability · +18% price | Higher Value with current priorities ASRock PRO-750G C 100 +36% capability · -46% price |
| Small form factorScenario capability | GradeF Value34 | Higher capability Thermaltake Toughpower GT 1200W F 44 +118% capability · +18% price | Higher Value with current priorities ASRock PRO-650G F 100 +18% capability · -56% price |
| Workstation & 24/7Scenario capability | GradeC Value47 | Higher capability HPE P38995-B21 800W B 59 +150% capability · +13% price | Higher Value with current priorities Phanteks AMP GH 850W Black B 100 +100% capability · -16% 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 C 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 $37, against a cheapest tracked $102
- Value for money matters more to you than this exact modelASRock PRO-650G holds Relative Value 100 against its 29 with Balanced priorities, at $45
- Not the pick if High-end GPU 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.
Consider other options if
- Not the pick if Gaming PC is your main useit grades C there; Thermaltake Toughpower GT 1200W grades S at $120
- 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 $35, against a cheapest tracked $102
- Value for money matters more to you than this exact modelASRock PRO-650G holds Relative Value 100 against its 28 for Gaming PC, at $45
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 F for High-end GPU, but C for Gaming PC
Consider other options if
- Not the pick if High-end GPU is your main useit grades F there; Thermaltake Toughpower GT 1200W grades S at $120
- 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 modelASRock PRO-750G holds Relative Value 100 against its 39 for High-end GPU, at $55
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 C for Gaming PC
Consider other options if
- Not the pick if Small form factor is your main useit grades F there; Thermaltake Toughpower GT 1200W grades F at $120
- 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 $44, against a cheapest tracked $102
- Value for money matters more to you than this exact modelASRock PRO-650G holds Relative Value 100 against its 34 for Small form factor, at $45
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 C for Gaming PC
Consider other options if
- Not the pick if Workstation is your main useit grades C there; HPE P38995-B21 800W grades B at $115
- 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 $35, against a cheapest tracked $102
- Value for money matters more to you than this exact modelPhanteks AMP GH 850W Black holds Relative Value 100 against its 47 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 Gigabyte 550W GP-P550B
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
- 550 W
- 80 PLUS rating
- 80 PLUS Bronze
- ATX standard
- ATX 2.31
Show all specifications
Warranty
- Manufacturer part number
- GP-P550B
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
Gigabyte 550W GP-P550B offers a balanced view across an all-round mix of priorities. It ranks #92 by capability in the current modelled field. Its clearest measured strength is rated output 550. ASRock PRO-650G currently clears the same practical bar with stronger Relative Value.
Gigabyte 550W GP-P550B offers C-grade capability for Gaming PC. It ranks #92 by capability in the current modelled field. Its clearest measured strength is rated output 550. The C grade is the decisive limitation for this workload.
Gigabyte 550W GP-P550B offers F-grade capability for High-end GPU. It ranks #92 by capability in the current modelled field. Its clearest measured strength is rated output 550. The F grade is the decisive limitation for this workload.
Gigabyte 550W GP-P550B offers F-grade capability for Small form factor. It ranks #90 by capability in the current modelled field. Its clearest measured strength is rated output 550. The F grade is the decisive limitation for this workload.
Gigabyte 550W GP-P550B offers C-grade capability for Workstation. It ranks #84 by capability in the current modelled field. Its clearest measured strength is rated output 550. 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.