ASUS PRIME B450M-K II
The current ASUS PRIME B450M-K II price from retailers, its key specifications, and how it performs for each job.
ASUS · MOBO · AM4
Retailer photo of ASUS PRIME B450M-K II (Micro ATX). View this offer in Where to buy
Trade-offs: you want strong value with Balanced priorities specifically
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 CAD 169 the ASUS PRIME B450M-K II is priced in line with its CAD 169 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
ASUS PRIME B450M-K II: 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 |
|---|---|---|---|---|---|---|
| ASUS PRIME B450M-K II (Micro ATX) | Newegg | New | CAD 169 | 25 | 2026-10-29 | View offer → |
| ASUS PRIME B450M-K IIMultiple 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.
#391 of 703 graded motherboards
- #388 ASUSASUS PRIME B450-PLUS 62
- #389 ASUSASUS Prime B450M-A II 62
- #390 ASUSASUS PRIME B450M-A CSM 62
- #391 ASUSASUS PRIME B450M-K II 62
- #392 ASUSASUS STRIX B450-F GAMING 62
- #393 ASUSASUS TUF B450M-PRO GAMING 62
- #394 ASUSASUS TUF GAMING B450-PLUS II 62
Value Balanced
How much of that you get for today’s price.
#472 of 727 currently priced motherboards
- #469 ASUSASUS PRIME H810M-E-CSM 26
- #470 ASUSASUS ProArt B760-CREATOR 26
- #471 ASUSASUS TUF GAMING A620M-PLUS 25
- #472 ASUSASUS PRIME B450M-K II 25
- #473 MSIMSI PRO B850M-G 25
- #474 ASUSASUS ROG STRIX B860-F GAMING WIFI 25
- #475 GigabyteGigabyte A620M S2H 25
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#403 of 685 graded motherboards
- #400 ASRockASRock B450M PRO4 R2.0 74
- #401 ASUSASUS B450-PLUS GAMING 74
- #402 ASUSASUS PRIME B450-PLUS 74
- #403 ASUSASUS PRIME B450M-K II 74
- #404 ASUSASUS STRIX B450-F GAMING 74
- #405 ASUSASUS TUF B450M-PRO GAMING 74
- #406 ASUSASUS TUF GAMING B450-PLUS II 74
Value Gaming Build
How much of that you get for today’s price.
#538 of 727 currently priced motherboards
- #535 ASUSASUS ROG STRIX Z490-I GAMING 16
- #536 ASUSASUS TUF GAMING B660M-PLUS WIFI 16
- #537 MSIMSI MAG B660M MORTAR WIFI DDR4 16
- #538 ASUSASUS PRIME B450M-K II 16
- #539 ASUSASUS ROG STRIX B760-G GAMING WIFI 16
- #540 ASRockASRock B550M-ITX 16
- #541 ASUSASUS ROG STRIX B660-G GAMING WIFI 15
Performance Workstation
How much it can do. Price plays no part in this ranking.
#649 of 680 graded motherboards
- #646 GigabyteGigabyte H610M S2H V2 14
- #647 MSIMSI PRO H610M-G DDR4 14
- #648 MSIMSI PRO H610M-G WIFI 14
- #649 ASUSASUS PRIME B450M-K II 10
- #650 MSIMSI B450M-A PRO MAX 10
- #651 ASRockASRock B760M-HDV 10
- #652 ASRockASRock B760M-ITX 10
Value Workstation
How much of that you get for today’s price.
#624 of 727 currently priced motherboards
- #621 ASUSASUS PRIME A520M-A 3
- #622 MSIMSI B365M PRO-VDH 3
- #623 GigabyteGigabyte A620M S2H 3
- #624 ASUSASUS PRIME B450M-K II 3
- #625 ASUSASUS STRIX B360-G GAMING 3
- #626 GigabyteGigabyte GA-B250-HD3 3
- #627 ASRockASRock B550M-ITX 3
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#158 of 703 graded motherboards
- #155 ASRockASRock B450M PRO4 R2.0 70
- #156 ASUSASUS Prime B450M-A II 70
- #157 ASUSASUS PRIME B450M-A CSM 70
- #158 ASUSASUS PRIME B450M-K II 70
- #159 ASUSASUS TUF B450M-PRO GAMING 70
- #160 ASUSASUS TUF GAMING B450M-PRO II 70
- #161 GigabyteGigabyte B450M DS3H V2 70
Value Small-Case Fit
How much of that you get for today’s price.
#344 of 727 currently priced motherboards
- #341 ASUSASUS TUF GAMING B650-E WIFI 25
- #342 GigabyteGigabyte B850 EAGLE WIFI7 ICE 25
- #343 ASUSASUS X870 MAX GAMING WIFI7 25
- #344 ASUSASUS PRIME B450M-K II 25
- #345 ASUSASUS ROG MAXIMUS Z690 HERO 25
- #346 ASUSASUS STRIX B550-F GAMING WIFI II 25
- #347 ASUSASUS TUF Z390M-Pro Gaming 25
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 Value25 | Higher capability ASRock 90-MXBMS0-A0UAYZ 62 +25% capability | Higher Value with current priorities MSI B550M PRO-VDH WIFI 92 +0% capability |
| Gaming BuildScenario capability | GradeC Value16 | Higher capability ASRock B650 Pro RS WiFi A 83 +19% capability · +12% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI C 58 +0% capability |
| WorkstationScenario capability | GradeD Value3 | Higher capability ASRock B650 Pro RS WiFi B 58 +710% capability · +12% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI D 28 +310% capability |
| Small-Case FitScenario capability | GradeC Value25 | Higher capability ASRock A620AI WiFi S 76 +37% capability · +7% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI C 88 +1% 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
Consider other options if
- You want strong value with Balanced priorities specificallycompeting products deliver so much more 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 modelMSI B550M PRO-VDH WIFI holds Relative Value 92 against its 25 with Balanced priorities. Check on Amazon.
- 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.
Consider other options if
- Not the pick if Gaming Build is your main useit grades C there; ASRock B650 Pro RS WiFi grades A at CAD 190
- 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 modelMSI B550M PRO-VDH WIFI holds Relative Value 58 against its 16 for Gaming Build. Check on Amazon.
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
- Not the pick if Workstation is your main useit grades D there; ASRock B650 Pro RS WiFi grades B at CAD 190
- Value for money matters more to you than this exact modelMSI B550M PRO-VDH WIFI holds Relative Value 28 against its 3 for Workstation. Check on Amazon.
- You are buying for Workstation and want no asterisksthe rubric caps this grade: expansion data not collected for this board — graded on platform only
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
- Not the pick if Small-Case Fit is your main useit grades C there; ASRock A620AI WiFi grades S at CAD 180
- 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 modelMSI B550M PRO-VDH WIFI holds Relative Value 88 against its 25 for Small-Case Fit. Check on Amazon.
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 ASUS PRIME B450M-K II
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.
Show all specifications
Features
- RAID
- Yes
Warranty
- Warranty
- 3 years
- Manufacturer part number
- PRIME B450M-K II
Hover any value to see where it came from: a manufacturer specification, or a figure The Comparator calculated.
Sources: Comparator offer frame 2026-10-29
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 · 2 slots · up to 64 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
ASUS PRIME B450M-K II offers a balanced view across an all-round mix of priorities. It ranks #391 by capability in the current modelled field. Its clearest measured strength is feature score 33. MSI B550M PRO-VDH WIFI currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B450M-K II offers C-grade capability for Gaming Build. It ranks #403 by capability in the current modelled field. Its clearest measured strength is feature score 33. The C grade is the decisive limitation for this workload.
ASUS PRIME B450M-K II offers D-grade capability for Workstation. It ranks #649 by capability in the current modelled field. Its clearest measured strength is feature score 33. The D grade is the decisive limitation for this workload.
ASUS PRIME B450M-K II offers C-grade capability for Small-Case Fit. It ranks #158 by capability in the current modelled field. Its clearest measured strength is feature score 33. 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 2026-10-29 · formula mobo-value-v1.4 · facts facts-2026-10-29 · 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.