ASUS PRIME B840M-A WIFI
The current ASUS PRIME B840M-A WIFI price from retailers, its key specifications, and how it performs for each job.
ASUS · MOBO · AM5
Retailer photo of ASUS PRIME B840M-A WIFI (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: MediumAt CAD 260 the ASUS PRIME B840M-A WIFI is priced 22% below its CAD 333 representative market level. Only 2 verified new offers stand behind it, so the level can move quickly.
Consider: ASRock B550 Phantom Gaming 4 offers stronger value around CAD 110.Compare
Prices & availability
ASUS PRIME B840M-A WIFI: 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 |
|---|---|---|---|---|---|---|
| ASUS PRIME B840M-A WIFI (Micro ATX) | ASUS | New | CAD 260 | 47 | 2026-11-14 | View offer → |
| ASUS PRIME B840M-A WIFI (Micro ATX) | Newegg | New | CAD 405 | 30 | 2026-11-14 | 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.
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.
#500 of 740 graded motherboards
- #497 MSIMSI MPG Z390M GAMING EDGE AC 59
- #498 MSIMSI Z390-A PRO 59
- #499 ASUSASUS PRIME B840-PLUS WIFI 49
- #500 ASUSASUS PRIME B840M-A WIFI 49
- #501 GigabyteGigabyte B840 EAGLE WIFI6E 49
- #502 MSIMSI B840 GAMING PLUS WIFI 49
- #503 MSIMSI PRO B840-P WIFI 49
Value Balanced
How much of that you get for today’s price.
#107 of 771 currently priced motherboards
- #104 GigabyteGigabyte Z890 AORUS ELITE WIFI7 ICE 47
- #105 ASUSASUS PRIME Z370-P II 47
- #106 GigabyteGigabyte A520M S2H 47
- #107 ASUSASUS PRIME B840M-A WIFI 47
- #108 ASUSASUS X870 AYW GAMING WIFI W 46
- #109 GigabyteGigabyte B650 UD AC 46
- #110 ASUSASUS PRIME Z690-P WIFI D4 46
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#350 of 675 graded motherboards
- #347 MSIMSI Z370 GODLIKE GAMING 79
- #348 ASRockASRock 90-MXBMS0-A0UAYZ 78
- #349 ASUSASUS PRIME B840-PLUS WIFI 78
- #350 ASUSASUS PRIME B840M-A WIFI 78
- #351 ASUSASUS ROG ZENITH EXTREME 78
- #352 ASRockASRock B860M Pro-A WiFi 78
- #353 ASRockASRock B860M-X 78
Value Gaming Build
How much of that you get for today’s price.
#126 of 771 currently priced motherboards
- #123 ASRockASRock H810M-X WiFi 45
- #124 ASUSASUS X870 MAX GAMING WIFI7 W 45
- #125 ASUSASUS TUF GAMING B850M-PLUS WIFI7 45
- #126 ASUSASUS PRIME B840M-A WIFI 44
- #127 ASUSASUS PRIME H810M-A WIFI-CSM 44
- #128 GigabyteGigabyte B760M G P WIFI DDR4 44
- #129 GigabyteGigabyte B850 AORUS ELITE WIFI7 ICE 44
Performance Workstation
How much it can do. Price plays no part in this ranking.
#258 of 719 graded motherboards
- #255 MSIMSI MAG B760 TOMAHAWK WIFI 75
- #256 MSIMSI PRO Z690-P DDR4 75
- #257 ASUSASUS PRIME B840-PLUS WIFI 74
- #258 ASUSASUS PRIME B840M-A WIFI 74
- #259 ASUSASUS TUF GAMING B850M-PLUS WIFI7 W 74
- #260 MSIMSI MAG X570S TOMAHAWK MAX WIFI 74
- #261 MSIMSI MPG X570S CARBON MAX WIFI 74
Value Workstation
How much of that you get for today’s price.
#103 of 771 currently priced motherboards
- #100 GigabyteGigabyte B550M K 74
- #101 ASUSASUS TUF GAMING A620M-PLUS WIFI 74
- #102 GigabyteGigabyte B860 EAGLE WIFI6E 74
- #103 ASUSASUS PRIME B840M-A WIFI 74
- #104 GigabyteGigabyte B550M AORUS ELITE AX 74
- #105 ASRockASRock B550 PG RIPTIDE 74
- #106 ASUSASUS PRIME B450M-A CSM 74
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#102 of 740 graded motherboards
- #99 ASUSASUS PRIME B650M-A AX 74
- #100 ASUSASUS PRIME B650M-A II-CSM 74
- #101 ASUSASUS PRIME B650M-A WIFI 74
- #102 ASUSASUS PRIME B840M-A WIFI 74
- #103 ASUSASUS PRIME B850M-A 74
- #104 ASUSASUS PRIME B850M-A WIFI 74
- #105 ASUSASUS PRIME B850M-A WIFI-CSM 74
Value Small-Case Fit
How much of that you get for today’s price.
#94 of 771 currently priced motherboards
- #91 ASUSASUS PRIME B660M-A D4 48
- #92 ASUSASUS PRIME H810M-E-CSM 48
- #93 ASUSASUS PRIME Z370-P II 48
- #94 ASUSASUS PRIME B840M-A WIFI 48
- #95 MSIMSI B850 GAMING PLUS WIFI 47
- #96 ASUSASUS ROG STRIX B650-A GAMING WIFI 47
- #97 MSIMSI B850 GAMING PRO WIFI6E 47
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 Value47 | Higher capability MSI PRO X870E-S EVO WIFI 24 +104% capability · +19% price | Higher Value with current priorities ASRock B550 Phantom Gaming 4 100 +27% capability · -58% price |
| Gaming BuildScenario capability | GradeB
Value44 | Higher capability ASUS B650E MAX GAMING WIFI S 67 +19% capability · -15% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI C 96 -5% capability |
| WorkstationScenario capability | GradeC
Value74
| Higher capability Gigabyte B650 AORUS ELITE AX A 81 +25% capability | Higher Value with current priorities ASRock B650 Pro RS WiFi B 100 +14% capability · -27% price |
| Small-Case FitScenario capability | GradeC
Value48
| Higher capability Gigabyte B550I AORUS PRO AX S 45 +35% capability · +2% price | Higher Value with current priorities MSI B550M PRO-VDH WIFI C 100 -4% 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 B 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 CAD 151, against a cheapest tracked CAD 260
- Value for money matters more to you than this exact modelASRock B550 Phantom Gaming 4 holds Relative Value 100 against its 47 with Balanced priorities, at CAD 110
- Not the pick if Workstation is your main useit grades only C there
Works well if
- Gaming Build is your main prioritygraded B for Gaming Build on the same rubric as the tier list
Consider other options if
- You want strong value for Gaming Build specificallyat today's market no realistic price for this model reaches strong value for Gaming Build — the calculation only gets there near CAD 144, against a cheapest tracked CAD 260
- Value for money matters more to you than this exact modelMSI B550M PRO-VDH WIFI holds Relative Value 96 against its 44 for Gaming Build. Check on Amazon.
- Not the pick if Workstation is your main useit grades only C 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
- Workstation is not actually your main job — Gaming Build isit grades C for Workstation, but B for Gaming Build
- Strong-value threshold: ~CAD 221CAD 221 is where Relative Value reaches 80 for Workstation, in the 2026-11-14 offer frame
Consider other options if
- Not the pick if Workstation is your main useGraded C; Gigabyte B650 AORUS ELITE AX reaches A. Check on Amazon.
- Current price sits CAD 39 above the strong-value threshold (~CAD 221)cheapest tracked CAD 260 against a CAD 221 calculated threshold for Workstation
- Value for money matters more to you than this exact modelASRock B650 Pro RS WiFi holds Relative Value 100 against its 74 for Workstation, at CAD 190
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 B for Gaming Build
Consider other options if
- Not the pick if Small-Case Fit is your main useit grades C there; Gigabyte B550I AORUS PRO AX grades S at CAD 265
- You want strong value for Small-Case Fit specificallyat today's market no realistic price for this model reaches strong value for Small-Case Fit — the calculation only gets there near CAD 155, against a cheapest tracked CAD 260
- Value for money matters more to you than this exact modelMSI B550M PRO-VDH WIFI holds Relative Value 100 against its 48 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 B840M-A WIFI
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
Power / Interface
Physical / Outputs
- M.2 slots
- 4
- SATA ports
- 4
- PCIe ×16 slots
- 3
- USB ports
- 4
- Wi-Fi
- WiFi 6E
- Ethernet
- 2.5 Gb/s
Show all specifications
Features
- RAID
- Yes
Warranty
- Warranty
- 3 years
- Manufacturer part number
- 90MB1J20-MVAAYC
Hover any value to see where it came from: a manufacturer specification, or a figure TheComparator.Tech calculated.
Sources: Comparator offer frame 2026-11-14
What to check in your build
AM5
Takes AM5 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
DDR5 · 4 slots · up to 192 GB
Takes DDR5 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 B840M-A WIFI offers a balanced view across an all-round mix of priorities. It ranks #500 by capability in the current modelled field. Its clearest measured strength is feature score 77. ASRock B550 Phantom Gaming 4 currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B840M-A WIFI offers B-grade capability for Gaming Build. It ranks #350 by capability in the current modelled field. Its clearest measured strength is feature score 77. MSI MPG B550 GAMING PLUS currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B840M-A WIFI offers C-grade capability for Workstation. It ranks #258 by capability in the current modelled field. Its clearest measured strength is feature score 77. The C grade is the decisive limitation for this workload.
ASUS PRIME B840M-A WIFI offers C-grade capability for Small-Case Fit. It ranks #102 by capability in the current modelled field. Its clearest measured strength is feature score 77. 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.
Useful links & sources
offer frame 2026-11-14 · formula mobo-value-v6.1 · facts facts-2026-11-14 · 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.