The Comparator

ASRock B550M-ITX vs ASUS Prime B450M-A II

Compare ASRock B550M-ITX and ASUS Prime B450M-A II in Canada side by side across price, specifications, capability by use case and the price at which the answer changes.

Market snapshot Oct 29, 2026 · CAD

Specifications, performance and current prices compared in Canada · CAD · prices checked through Oct 29, 2026

Open in Compare

ASRock B550M-ITX

ASRock

Current comparison price

CAD 150Value · Balanced26

from 1 offer · checked Oct 29

Capability highlights · price excluded

  • A Small-Case Fit
+2 more · view all grades
  • B Gaming Build
  • D Workstation
  • A Small-Case Fit

ASUS Prime B450M-A II

ASUS

Current comparison price

CAD 130Value · Balanced45

from 2 offers at 2 retailers · checked Oct 29

Capability highlights · price excluded

  • B Gaming Build
  • C Small-Case Fit
  • D Workstation

Key differences at a glance

Capabilityprice excluded

Scenarios won: ASRock B550M-ITX 1, ASUS Prime B450M-A II 0, even 2. ASRock B550M-ITX is ahead for Small-Case Fit. View grades →

Valueunder Balanced

ASUS Prime B450M-A II has the higher Value under these priorities (45 vs 26).

Pricecurrent market snapshot

ASUS Prime B450M-A II costs less right now (CAD 130 vs CAD 150, 13% apart).

How priorities change the comparison Presets with the higher Value: ASRock B550M-ITX 0 · ASUS Prime B450M-A II 4 · even 0
Priority ASRock B550M-ITX ASUS Prime B450M-A II
2645
1627
39
3538

Pick a preset to compare under it: the whole page follows. Within 2 points counts as even.

Price difference and break-even price

Under Balanced, each product holds or loses the higher Value at one price, with the other held at its current price. Enter the prices you were actually offered to see the answer for your deal.

ASRock B550M-ITX

Current comparison price

CAD 150 26

ASRock B550M-ITX matches the Value of ASUS Prime B450M-A II (at CAD 130) at CAD 70 or less.

ASUS Prime B450M-A II

Current comparison price

CAD 130 45

ASUS Prime B450M-A II keeps the higher Value up to CAD 277 (with ASRock B550M-ITX at CAD 150).

A crossover is a calculation under the active priorities and today's market frame, not a price forecast.

Price comparison: current offers

New offers we track in Canada (CAD), cheapest first, with the date each was checked. Amazon appears as a link only: its price is not shown and never enters Value.

ASRock B550M-ITX

  1. Check on AmazonAmazonAffiliate link · price shown on AmazonCheck price →
  2. CAD 150ASRock B550M-ITX (Mini)Newegg · checked · Affiliate linkGo to offer →

ASUS Prime B450M-A II

  1. Check on AmazonAmazonAffiliate link · price shown on AmazonCheck price →
  2. CAD 130Best priceASUS Prime B450M-A II (Micro ATX)ASUS · checked · Affiliate linkGo to offer →
  3. CAD 222ASUS Prime B450M-A II (Micro ATX)Newegg · checked · Affiliate linkGo to offer →

Affiliate links may earn us a commission. They never change the prices shown here, the ranking or Value.

Performance and key differences

What each product can do for a job, graded S to F with price left out, and the measured indexes behind it.

View full tier list and performance rankings

ASRock B550M-ITX ASUS Prime B450M-A II
Gaming BuildB #392B #329
WorkstationD #629D #433
Small-Case FitA #17C #156
Features4145
Connectivity912
Memory support2856

Where each one leads

  • Lower current price · Higher Value with these priorities · More offers

Specifications compared

Facts true of every board a product groups; a range or "varies" marks a fact that differs between boards.

6 identical facts hidden

ASRock B550M-ITX ASUS Prime B450M-A II
Platform
ChipsetAMD B550AMD B450
Form factorMini-ITXMicro ATX
Memory
Memory slots24
Product
BrandASRockASUS

Not tracked means the source data does not have this fact. It is not assumed to be absent.

Which one to choose: where each wins

Conditions drawn from the data above, not a universal recommendation. The better choice depends on which of these matter to you.

ASRock B550M-ITX fits better when…

  • the job is Small-Case Fit: higher capability grade

ASUS Prime B450M-A II fits better when…

  • Features matters: higher index
  • Connectivity matters: higher index
  • Memory support matters: higher index
  • your priorities are Balanced: higher Value
  • the budget decides: 13% lower current price

Questions and methodology

Which one is better, ASRock B550M-ITX or ASUS Prime B450M-A II?

It depends on the question. For capability (price left out) see the grades by use case; for how good the current price is for what you get, see Value under your priorities; and for the cheapest option today, see current prices. This page keeps the three apart and does not name one overall winner.

Which has the higher Value right now?

Under Balanced, ASUS Prime B450M-A II has the higher Value (45 vs 26) in the market snapshot of Oct 29, 2026. Value changes with your priorities and with prices.

At what price does the answer change?

Under Balanced, with ASUS Prime B450M-A II at its current price, ASRock B550M-ITX reaches equal Value at CAD 70. It is a calculation, not a price forecast.

Which one is more capable, ignoring price?

Scenarios won: ASRock B550M-ITX 1, ASUS Prime B450M-A II 0, even 2. ASRock B550M-ITX is ahead for Small-Case Fit.

Where can I compare current offers?

The offers section lists every new offer we track for both products in Canada, with the date each price was checked. Open in Compare to add more products.

How we measure →