ASUS PRIME B840-PLUS WIFI
The current ASUS PRIME B840-PLUS WIFI price from retailers, its key specifications, and how it performs for each job.
ASUS · MOBO · AM5
Retailer photo of ASUS PRIME B840-PLUS WIFI (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 280 the ASUS PRIME B840-PLUS WIFI is priced 4% below its CAD 291 representative market level. Only 2 verified new offers stand behind it, so the level can move quickly.
Consider: ASRock B650 Pro RS WiFi offers stronger value around CAD 190.Compare
Prices & availability
ASUS PRIME B840-PLUS 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 B840-PLUS WIFI (ATX) | ASUS | New | CAD 280 | 57 | 2026-10-29 | View offer → |
| ASUS PRIME B840-PLUS WIFI (ATX) | Newegg | New | CAD 302 | 54 | 2026-10-29 | View offer → |
| ASUS PRIME B840-PLUS WIFIMultiple 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.
#486 of 703 graded motherboards
- #483 MSIMSI MPG Z390 GAMING PRO CARBON AC 59
- #484 MSIMSI MPG Z390M GAMING EDGE AC 59
- #485 MSIMSI Z390-A PRO 59
- #486 ASUSASUS PRIME B840-PLUS WIFI 49
- #487 ASUSASUS PRIME B840M-A WIFI 49
- #488 MSIMSI PRO B840M-B 49
- #489 ASRockASRock B860M Pro RS 49
Value Balanced
How much of that you get for today’s price.
#149 of 727 currently priced motherboards
- #146 MSIMSI B760 GAMING PLUS WIFI 58
- #147 ASUSASUS ProArt-B850-CREATOR-WIFI-NEO 58
- #148 ASUSASUS ROG CROSSHAIR X870E HERO 58
- #149 ASUSASUS PRIME B840-PLUS WIFI 57
- #150 GigabyteGigabyte Z890M GAMING X 57
- #151 GigabyteGigabyte Z890 AORUS PRO ICE 57
- #152 GigabyteGigabyte X870E AORUS PRO X3D 57
Performance Gaming Build
How much it can do. Price plays no part in this ranking.
#355 of 685 graded motherboards
- #352 ASUSASUS PRIME B860M-A WIFI 79
- #353 ASUSASUS PRIME B860M-A WIFI-CSM 79
- #354 ASRockASRock 90-MXBMS0-A0UAYZ 78
- #355 ASUSASUS PRIME B840-PLUS WIFI 78
- #356 ASUSASUS PRIME B840M-A WIFI 78
- #357 ASUSASUS ROG ZENITH EXTREME 78
- #358 ASRockASRock B860M Pro-A WiFi 78
Value Gaming Build
How much of that you get for today’s price.
#243 of 727 currently priced motherboards
- #240 ASUSASUS b650m-ayw-wifi 43
- #241 ASUSASUS ROG MAXIMUS Z790 FORMULA 43
- #242 MSIMSI MPG Z690 CARBON WIFI 43
- #243 ASUSASUS PRIME B840-PLUS WIFI 43
- #244 ASUSASUS PRIME B850M-A 43
- #245 ASUSASUS ROG STRIX TRX40-XE GAMING 43
- #246 GigabyteGigabyte Z790 UD AC 43
Performance Workstation
How much it can do. Price plays no part in this ranking.
#229 of 680 graded motherboards
- #226 GigabyteGigabyte X870 GAMING X WIFI7 75
- #227 MSIMSI MAG B760 TOMAHAWK WIFI 75
- #228 MSIMSI PRO Z690-P DDR4 75
- #229 ASUSASUS PRIME B840-PLUS WIFI 74
- #230 ASUSASUS PRIME B840M-A WIFI 74
- #231 ASUSASUS TUF GAMING B850M-PLUS WIFI7 W 74
- #232 MSIMSI MAG X570S TOMAHAWK MAX WIFI 74
Value Workstation
How much of that you get for today’s price.
#206 of 727 currently priced motherboards
- #203 ASUSASUS ROG STRIX Z790-A GAMING WIFI II 36
- #204 GigabyteGigabyte B850 A STEALTH ICE 35
- #205 ASUSASUS ROG MAXIMUS Z790 DARK HERO 35
- #206 ASUSASUS PRIME B840-PLUS WIFI 35
- #207 ASUSASUS ROG Crosshair VIII Dark Hero 35
- #208 ASUSASUS PRIME Z690-P WIFI 35
- #209 ASUSASUS TUF GAMING B650-E WIFI 35
Performance Small-Case Fit
How much it can do. Price plays no part in this ranking.
#523 of 703 graded motherboards
- #520 MSIMSI MS-7E84 51
- #521 MSIMSI PRO B860-P 51
- #522 MSIMSI PRO B860-P WIFI 51
- #523 ASUSASUS PRIME B840-PLUS WIFI 50
- #524 ASUSASUS ROG STRIX B860-F GAMING WIFI 50
- #525 ASUSASUS TUF GAMING B860-PLUS WIFI 50
- #526 GigabyteGigabyte B860 AORUS ELITE WIFI7 ICE 50
Value Small-Case Fit
How much of that you get for today’s price.
#336 of 727 currently priced motherboards
- #333 MSIMSI PRO Z790-A WIFI DDR4 26
- #334 GigabyteGigabyte B760M D2H DDR4 26
- #335 ASUSASUS ROG MAXIMUS Z890 APEX 26
- #336 ASUSASUS PRIME B840-PLUS WIFI 26
- #337 MSIMSI PRO H610M-G WIFI 26
- #338 MSIMSI 7D50-001R 26
- #339 MSIMSI PRO Z790-S WIFI 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 Value57 | Higher capability MSI PRO X870E-S EVO WIFI 20 +104% capability · +11% price | Higher Value with current priorities ASRock B650 Pro RS WiFi 100 +58% capability · -32% price |
| Gaming BuildScenario capability | GradeB Value43 | Higher capability MSI PRO B650-P WIFI S 81 +28% capability · +16% price | Higher Value with current priorities ASUS PRIME Z890-P WIFI A 95 +17% capability · +0% price |
| WorkstationScenario capability | GradeC Value35 | Higher capability Gigabyte X870 AORUS ELITE WIFI7 ICE A 88 +28% capability · +19% price | Higher Value with current priorities ASUS PRIME Z890-P WIFI A 73 +23% capability · +0% price |
| Small-Case FitScenario capability | GradeD Value26 | Higher capability ASUS ROG STRIX Z690-I GAMING WIFI S 98 +100% capability · +0% price | Higher Value with current priorities ASUS PRIME Z890M-PLUS WIFI C 100 +35% capability · -14% 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 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 174, against a cheapest tracked CAD 280
- Value for money matters more to you than this exact modelASRock B650 Pro RS WiFi holds Relative Value 100 against its 57 with Balanced priorities, at CAD 190
- Not the pick if Small-Case Fit is your main useit grades only D 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 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
- Not the pick if Small-Case Fit is your main useit grades only D there
- You are buying for Gaming Build and want no asterisksthe rubric caps this grade: entry chipset — no cpu overclocking headroom
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
Consider other options if
- Not the pick if Workstation is your main useit grades C there; Gigabyte X870 AORUS ELITE WIFI7 ICE grades A at CAD 333
- You want strong value for Workstation specificallycompeting products deliver so much more for Workstation per dollar that no price this model realistically trades at reaches the strong-value mark for this job
- 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 D 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 D there; ASUS ROG STRIX Z690-I GAMING WIFI grades S at CAD 280
- 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 modelASUS PRIME Z890M-PLUS WIFI holds Relative Value 100 against its 26 for Small-Case Fit, at CAD 240
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 B840-PLUS 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
- 4
- 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
- 90MB1IZ0-MVAAY0
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
AM5
Takes AM5 processors — a matching socket is necessary but not sufficient, check the vendor's CPU support list
ATX
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 B840-PLUS WIFI offers a balanced view across an all-round mix of priorities. It ranks #486 by capability in the current modelled field. Its clearest measured strength is feature score 85. ASRock B650 Pro RS WiFi currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B840-PLUS WIFI offers B-grade capability for Gaming Build. It ranks #355 by capability in the current modelled field. Its clearest measured strength is feature score 85. ASRock B650 Pro RS WiFi currently clears the same practical bar with stronger Relative Value.
ASUS PRIME B840-PLUS WIFI offers C-grade capability for Workstation. It ranks #229 by capability in the current modelled field. Its clearest measured strength is feature score 85. The C grade is the decisive limitation for this workload.
ASUS PRIME B840-PLUS WIFI offers D-grade capability for Small-Case Fit. It ranks #523 by capability in the current modelled field. Its clearest measured strength is feature score 85. The D 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.