Retailer photo of Gigabyte B550M K (Micro ATX). View this offer in Where to buy
Gigabyte · MOBO · AM4
Gigabyte B550M K
The current Gigabyte B550M K price from retailers, its key specifications, and how it performs for each job.
Trade-offs: you want strong value with Balanced priorities specifically
- Socket
- AM4
- Chipset
- AMD B550
- Form factor
- Micro ATX
- Memory
- DDR4 · 4 slots
- M.2 slots
- 2
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: MediumAt $79 the Gigabyte B550M K is priced 22% below its $101 representative market level. Only 2 verified new offers stand behind it, so the level can move quickly.
Price looks competitive: the cheapest verified offer is 22% below the current representative level.
Prices & availability
Gigabyte B550M K: current price and offers
Compare the offers we track for this model, across variants and retailers.
2 tracked offers · 2 retailers
| Variant | Store | Condition | Price (snapshot) | Value · Balanced | Checked | Offer link |
|---|---|---|---|---|---|---|
| Gigabyte B550M K (Micro ATX) | Newegg | New | $79 | 43 | 2026-10-16 | View offer → |
| Gigabyte B550M K (Micro ATX) | MemoryC | New | $122 | 32 | 2026-10-11 | View offer → |
| Gigabyte B550M KMultiple 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.
#546 of 936 graded motherboards
- #543 GigabyteGigabyte B550M DS3H AC 62
- #544 GigabyteGigabyte B550M DS3H AC R2 62
- #545 GigabyteGigabyte B550M GAMING X WIFI6 62
- #546 GigabyteGigabyte B550M K 62
- #547 MSIMSI B550-A PRO 62
- #548 MSIMSI B550M PRO-VDH 62
- #549 MSIMSI B550M PRO-VDH WIFI 62
Value Balanced
How much of that you get for today’s price.
#249 of 985 currently priced motherboards
- #246 MSIMSI PRO B860-P WIFI 44
- #247 MSIMSI MPG X870E CARBON WIFI 44
- #248 GigabyteGigabyte B650E AORUS STEALTH ICE 43
- #249 GigabyteGigabyte B550M K 43
- #250 GigabyteGigabyte B650 EAGLE 43
- #251 MSIMSI MAG Z390M MORTAR 43
- #252 ASRockASRock B860M Steel Legend WiFi 43
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#672 of 917 graded motherboards
- #669 MSIMSI B450 TOMAHAWK MAX II 70
- #670 ASRockASRock B550M-HDV 70
- #671 GigabyteGigabyte B550M AORUS ELITE AX 70
- #672 GigabyteGigabyte B550M K 70
- #673 ASUSASUS PRIME B660-PLUS D4 70
- #674 ASUSASUS ROG STRIX B660-F GAMING WIFI 70
- #675 ASUSASUS TUF GAMING B660M-PLUS WIFI D4 70
Value Gaming Build
How much of that you get for today’s price.
#505 of 985 currently priced motherboards
- #502 GigabyteGigabyte Z690I AORUS ULTRA LITE 27
- #503 GigabyteGigabyte B550 AORUS MASTER 27
- #504 MSIMSI B650M BOMBER WIFI 27
- #505 GigabyteGigabyte B550M K 26
- #506 ASRockASRock B860M Pro-A WiFi 26
- #507 ASUSASUS TUF GAMING X570-PRO 26
- #508 MSIMSI MEG X399 CREATION 26
Performance Workstation
How much it can do. Price plays no part in this ranking.
#669 of 907 graded motherboards
- #666 ASUSASUS PRIME B550M-A AC 42
- #667 ASUSASUS PRIME B550M-A WIFI II 42
- #668 GigabyteGigabyte B550M AORUS ELITE AX 42
- #669 GigabyteGigabyte B550M K 42
- #670 MSIMSI B850MPOWER 42
- #671 ASUSASUS TUF B360-PLUS GAMING 42
- #672 GigabyteGigabyte B360 AORUS Gaming 3 WIFI 42
Value Workstation
How much of that you get for today’s price.
#665 of 985 currently priced motherboards
- #662 ASUSASUS B860M-BRO 9
- #663 GigabyteGigabyte B860M EAGLE WIFI6 V2 9
- #664 GigabyteGigabyte B560M AORUS PRO AX 9
- #665 GigabyteGigabyte B550M K 9
- #666 ASUSASUS TUF GAMING B560M-PLUS 9
- #667 GigabyteGigabyte B860M EAGLE WIFI6 9
- #668 GigabyteGigabyte X870I AORUS PRO ICE 9
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#245 of 936 graded motherboards
- #242 ASUSASUS PRIME Z690M-PLUS D4 69
- #243 ASUSASUS TUF GAMING A620M-PLUS 68
- #244 ASUSASUS TUF GAMING A620M-PLUS WIFI 68
- #245 GigabyteGigabyte B550M K 68
- #246 MSIMSI B650M BOMBER WIFI 67
- #247 MSIMSI MAG B850M MORTAR WIFI 67
- #248 ASRockASRock B860M-H2 67
Value Small-Case Fit
How much of that you get for today’s price.
#177 of 985 currently priced motherboards
- #174 GigabyteGigabyte X870 EAGLE WIFI7 35
- #175 MSIMSI MPG Z790 EDGE WIFI 35
- #176 ASUSASUS B650E MAX GAMING WIFI 35
- #177 GigabyteGigabyte B550M K 35
- #178 ASUSASUS TUF GAMING X670E-PLUS WIFI 35
- #179 GigabyteGigabyte B550M AORUS PRO 35
- #180 ASUSASUS ROG STRIX X870-A GAMING WIFI 35
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 |
|---|---|---|
| Balanced (all-round)Weighted all-round view | GradeNo grade Value43 | — |
| Gaming BuildScenario capability | GradeC Value26 | Higher capability ASUS PRIME B450M-A CSM B 36 +14% capability · +11% price |
| WorkstationScenario capability | GradeD Value9 | Higher capability ASUS PRIME B450M-A CSM D 15 +32% capability · +11% price |
| Small-Case FitScenario capability | GradeC Value35 | Higher capability ASRock B550M-ITX A 33 +38% capability · +19% 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
Browse shortlists for different uses
Trade-offs
Works well if
- Gaming Build is your main prioritygraded C for Gaming Build 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 $33, against a cheapest tracked $79
- Value for money matters more to you than this exact modelASRock B550M-HDV holds Relative Value 36 against its 43 with Balanced priorities, at $70
- Workstation is what you actually need it forit grades only D 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
- Gaming Build is what you actually need it forit grades C there; ASUS PRIME B450M-A CSM grades B at $87
- You want strong value for Gaming Build specificallycompeting products deliver so much more for Gaming Build 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 B550M-HDV holds Relative Value 20 against its 26 for Gaming Build, at $70
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 Build isit grades D for Workstation, but C for Gaming Build
Consider other options if
- Workstation is what you actually need it forit grades D there; ASUS PRIME B450M-A CSM grades D at $87
- You are buying for Workstation and want no asterisksthe rubric caps this grade: + ecc support — useful for workstation reliability
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-Case Fit is not actually your main job — Gaming Build isit grades C for Small-Case Fit, but C for Gaming Build
Consider other options if
- Small-Case Fit is what you actually need it forit grades C there; ASRock B550M-ITX grades A at $94
- You want strong value for Small-Case Fit specificallycompeting products deliver so much more for Small-Case Fit 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 B550M-HDV holds Relative Value 31 against its 35 for Small-Case Fit, at $70
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 B550M K
Chosen for Balanced
Chosen for Gaming Build
Chosen for Workstation
Chosen for Small-Case Fit
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.
Memory
- Type
- DDR4
- Slots
- 4
- Maximum
- 128 GB
- ECC support
- Yes
Power / Interface
- Socket
- AM4
- Chipset
- AMD B550
- Form factor
- Micro ATX
Physical / Outputs
- M.2 slots
- 2
- SATA ports
- 6
- PCIe ×16 slots
- 1
- USB ports
- 2
- Ethernet
- 1 Gb/s
Show all specifications
Features
- Fan headers
- 2
- RAID
- Yes
Warranty
- Warranty
- 3 years
- Manufacturer part number
- B550M K
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
AM4
Takes AM4 processors — a matching socket is necessary but not sufficient, check the vendor's CPU support list
Micro ATX
Micro ATX — the case must accept this size
DDR4 · 4 slots · up to 128 GB
Takes DDR4 memory only — another DDR generation does not fit the slots
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 B550M K offers a balanced view across an all-round mix of priorities. It ranks #546 by capability in the current modelled field. Its clearest measured strength is feature score 61. ASRock B550M-HDV currently clears the same practical bar with stronger Relative Value.
Gigabyte B550M K offers C-grade capability for Gaming Build. It ranks #672 by capability in the current modelled field. Its clearest measured strength is feature score 61. The C grade is the decisive limitation for this workload.
Gigabyte B550M K offers D-grade capability for Workstation. It ranks #669 by capability in the current modelled field. Its clearest measured strength is feature score 61. The D grade is the decisive limitation for this workload.
Gigabyte B550M K offers C-grade capability for Small-Case Fit. It ranks #245 by capability in the current modelled field. Its clearest measured strength is feature score 61. 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 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 mobo-value-v1.4 · 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.