Gigabyte B550M K
The current Gigabyte B550M K price from retailers, its key specifications, and how it performs for each job.
Gigabyte · MOBO · AM4
Retailer photo of Gigabyte B550M K (Micro ATX). View this offer in Where to buy
Trade-offs: Not the pick if Workstation is your main use
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: MediumPrice looks competitive: the cheapest verified offer is 23% 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.
4 tracked offers · 3 retailers
| Variant | Store | Condition | Price (snapshot) | Value · Balanced | Checked | Offer link |
|---|---|---|---|---|---|---|
| Gigabyte B550M K (Micro ATX) | Amazon | New | Check on Amazon | 80 | 2026-11-09 | View offer → |
| Gigabyte B550M K (Micro ATX) | Newegg | New | $79 | 76 | 2026-11-08 | View offer → |
| Gigabyte B550M K (Micro ATX) | MemoryC | New | $124 | 48 | 2026-11-09 | View offer → |
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.
Show the other 1 tracked offers
| Variant | Store | Condition | Price (snapshot) | Value · Balanced | Checked | Offer link |
|---|---|---|---|---|---|---|
| Gigabyte B550M K (Micro ATX) | Newegg | Used | $59 | 100 | 2026-11-06 | View offer → |
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.
#553 of 967 graded motherboards
- #550 GigabyteGigabyte B550M DS3H 62
- #551 GigabyteGigabyte B550M DS3H AC R2 62
- #552 GigabyteGigabyte B550M GAMING X WIFI6 62
- #553 GigabyteGigabyte B550M K 62
- #554 MSIMSI B550-A PRO 62
- #555 MSIMSI B550M PRO-VDH 62
- #556 MSIMSI B550M PRO-VDH WIFI 62
Value Balanced
How much of that you get for today’s price.
#10 of 1015 currently priced motherboards
- #7 ASRockASRock 90-MXBMS0-A0UAYZ 82
- #8 ASRockASRock B550 Phantom Gaming 4 81
- #9 ASUSASUS PRIME B550M-A WIFI II 80
- #10 GigabyteGigabyte B550M K 80
- #11 ASRockASRock B760M Pro-A D4 80
- #12 ASUSASUS 90MB1LT0-M0EAY0 79
- #13 GigabyteGigabyte X870 GAMING WIFI6 78
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#699 of 949 graded motherboards
- #696 MSIMSI B450 TOMAHAWK MAX II 70
- #697 ASRockASRock B550M-HDV 70
- #698 GigabyteGigabyte B550M AORUS ELITE AX 70
- #699 GigabyteGigabyte B550M K 70
- #700 GigabyteGigabyte B660M DS3H DDR4 70
- #701 MSIMSI MAG B660M MORTAR WIFI DDR4 70
- #702 ASUSASUS TUF GAMING B760M-E D4 70
Value Gaming Build
How much of that you get for today’s price.
#7 of 1015 currently priced motherboards
- #4 ASUSASUS b650em-max-gaming-wifi 88
- #5 ASUSASUS PRIME B550M-A AC 88
- #6 ASRockASRock 90-MXBMS0-A0UAYZ 85
- #7 GigabyteGigabyte B550M K 83
- #8 ASUSASUS ROG STRIX B650-A GAMING WIFI 80
- #9 ASRockASRock B550 Phantom Gaming 4 80
- #10 ASUSASUS PRIME B550M-A WIFI II 80
Performance Workstation
How much it can do. Price plays no part in this ranking.
#709 of 949 graded motherboards
- #706 ASUSASUS PRIME B550M-A AC 42
- #707 ASUSASUS PRIME B550M-A WIFI II 42
- #708 GigabyteGigabyte B550M AORUS ELITE AX 42
- #709 GigabyteGigabyte B550M K 42
- #710 MSIMSI B850MPOWER 42
- #711 ASUSASUS TUF B360-PLUS GAMING 42
- #712 GigabyteGigabyte B360 AORUS Gaming 3 WIFI 42
Value Workstation
How much of that you get for today’s price.
#125 of 1015 currently priced motherboards
- #122 ASUSASUS Z790 GAMING WIFI7 68
- #123 ASUSASUS ROG STRIX Z790-E GAMING WIFI 68
- #124 GigabyteGigabyte Z790 AERO G 67
- #125 GigabyteGigabyte B550M K 67
- #126 MSIMSI MAG Z890 TOMAHAWK WIFI 67
- #127 ASUSASUS TUF GAMING A620M-PLUS WIFI 67
- #128 ASUSASUS PRIME B850M-A WIFI 67
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#257 of 967 graded motherboards
- #254 ASUSASUS PRIME Z690M-PLUS D4 69
- #255 ASUSASUS TUF GAMING A620M-PLUS 68
- #256 ASUSASUS TUF GAMING A620M-PLUS WIFI 68
- #257 GigabyteGigabyte B550M K 68
- #258 ASUSASUS TUF GAMING B650EM-E WIFI 67
- #259 MSIMSI B650M BOMBER WIFI 67
- #260 GigabyteGigabyte B850M FORCE 67
Value Small-Case Fit
How much of that you get for today’s price.
#6 of 1015 currently priced motherboards
- #3 ASUSASUS PRIME B550M-A AC 95
- #4 ASRockASRock A620AM-HVS 93
- #5 ASRockASRock B760M Pro-A D4 92
- #6 GigabyteGigabyte B550M K 89
- #7 GigabyteGigabyte H610M S2H V2 89
- #8 ASRockASRock 90-MXBMS0-A0UAYZ 88
- #9 ASUSASUS b650em-max-gaming-wifi 86
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 Value80 | — | — |
| Gaming BuildScenario capability | GradeC Value83 | Higher capability Gigabyte Z370 HD3 C 74 +6% capability | — |
| WorkstationScenario capability | GradeD Value67 | Higher capability Higher capability · Higher Value with current priorities ASRock B760M Pro-A D4 C 73 +57% capability | |
| Small-Case FitScenario capability | GradeC Value89 | — | Higher Value with current priorities ASRock A620AM-HVS C 93 -5% capability |
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
- Today's price already clears the strong-value mark$75 is where Relative Value reaches 80 with Balanced priorities, in the 2026-11-02–2026-11-09 offer frame
- Nothing in this budget scores better with Balanced prioritiesNo eligible model within a 10% price premium has higher Value with Balanced priorities. Check on Amazon.
Consider other options if
- Not the pick if Workstation is your main useit 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.
Works well if
- Today's price already clears the strong-value mark$78 is where Relative Value reaches 80 for Gaming Build, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Not the pick if Gaming Build is your main useit grades C there; Gigabyte Z370 HD3 grades C at $86
- You are buying for Gaming Build and want no asterisksthe rubric caps this grade: previous-generation socket — limited cpu upgrade path
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
- Strong-value threshold: ~$53$53 is where Relative Value reaches 80 for Workstation, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Not the pick if Workstation is your main useit grades D there; ASRock B760M Pro-A D4 grades C at $80
- Current offer is above the strong-value threshold (~$53); check the price on Amazon$53 is where Relative Value reaches 80 for Workstation, in the 2026-11-02–2026-11-09 offer frame
- 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
- Today's price already clears the strong-value mark$83 is where Relative Value reaches 80 for Small-Case Fit, in the 2026-11-02–2026-11-09 offer frame
Consider other options if
- Not the pick if Small-Case Fit is your main useit grades only C there
- Value for money matters more to you than this exact modelASRock A620AM-HVS holds Relative Value 93 against its 89 for Small-Case Fit. Check on Amazon.
- You are buying for Small-Case Fit and want no asterisksthe rubric caps this grade: micro atx — fits compact mid-size cases
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
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
Power / Interface
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
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
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 #553 by capability in the current modelled field. Its clearest measured strength is feature score 61. The main limitation appears when Workstation becomes the priority, where it grades D.
Gigabyte B550M K offers C-grade capability for Gaming Build. It ranks #699 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 #709 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 #257 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 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 mobo-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.