Relative Value20balanced preset
Gigabyte A520M K V2 1.0 vs ASUS PRIME B550M-A AC — value comparison
See current offers for Gigabyte A520M K V2 1.0
Relative Value64balanced preset
ASUS PRIME B550M-A AC shows higher Relative Value under balanced weights at the current dataset offers: 64 vs 20. The result crosses over if Gigabyte A520M K V2 1.0 reaches about $14 or below.
Price data · US · USD · New · A 2026-09-11 · B 2026-09-11Coverage · 2 tracked new-offer records across both modelsBenchmark confidence · no estimate flags on these two recordsAffiliate links · We may earn a commission from these links. Scores are calculated separately using our methodology.
02 · Decision matrix
One decision, three separate questions
Capability ignores price. Relative Value adds the current dataset offers and your priorities. Keeping them separate prevents a cheap product from being mistaken for the faster product.
The decision, split by questioncapability · value · price are separate answers
Capability by task
| Scenario | Gigabyte A520M K V2 1.0 | ASUS PRIME B550M-A AC |
|---|---|---|
| Gaming Build | D#789 | C#524✓ |
| Workstation | D#778 | D#576 |
| Small-Case Fit | D#413 | C#159✓ |
ASUS PRIME B550M-A AC grades higher in 2 of 3 graded scenarios (1 tied) and is never graded lower. These are the same S–F grades as the tier list — capability only, price excluded. The value rows below add prices from the 2026-09-11 offer frame. How tiers are assigned →
Relative Value by priority
Balancedhigher relative value lit
20
64 ✓
Gaming Buildhigher relative value lit
7
43 ✓
Workstationhigher relative value lit
2
22 ✓
Small-Case Fithigher relative value lit
19
66 ✓
Strict Budgethigher relative value lit
44
78 ✓
Both products are normalized within the same in-stock market frame per preset. A check marks the higher Relative Value; a difference of 3 points or less is shown as practically even.
03 · Price crossover
The price changes the answer
Current offers, crossover points and Strong Value thresholds answer different questions. Thresholds are calculations, not price forecasts.
A · Gigabyte A520M K V2 1.0
- Current dataset offer · NewUS · USD · snapshot 2026-09-11
- $75
- Beats ASUS PRIME B550M-A AC atbalanced weights; rival offer held fixed
- $14
- Strong Value at80+ Relative Value threshold
- $10
B · ASUS PRIME B550M-A AC
- Current dataset offer · NewUS · USD · snapshot 2026-09-11
- $100
- Beats Gigabyte A520M K V2 1.0 atbalanced weights; rival offer held fixed
- $520
- Strong Value at80+ Relative Value threshold
- $73
04 · Where to buy
Current offers for both products
Dated New-condition price snapshots for only the two products in this comparison. Confirm the final price and availability at the store.
A · Gigabyte A520M K V2 1.0
New · US · USDAmazon Affiliate
Check on AmazonB · ASUS PRIME B550M-A AC
New · US · USDAmazon Affiliate
Check on Amazon05 · Capability
Capability indexes, side by side
Price is intentionally excluded here so the more capable product and the better-value product cannot be confused.
Platform class (chipset & socket)
20
61
61
Feature score
47
58
58
Connectivity score
12
27
27
Memory support score
28
56
56
A · Gigabyte A520M K V2 1.0B · ASUS PRIME B550M-A ACEach row keeps the unit or category index named in its label; bar length compares A and B within that row.ASUS PRIME B550M-A AC shows higher Value under every weighting we test — a stable result in the 2026-09-11 offer frame.
06 · Platform & ownership
Fit, compatibility and ownership context
Only verified structured compatibility and ownership fields are shown. Check the exact system, board manual and vendor QVL before purchase; missing fields are never guessed.
A · Gigabyte A520M K V2 1.0
- CPU socketAM4
- ChipsetAMD A520
- Form factorMicro ATX
- Memory generationDDR4
- M.2 slots1
- SATA ports4
- Ethernet1 Gb/s
- Warranty (typical new)36 mo
B · ASUS PRIME B550M-A AC
- CPU socketAM4
- ChipsetAMD B550
- Form factorMicro ATX
- Memory generationDDR4
- M.2 slots2
- SATA ports4
- Wi-FiWi-Fi 5 Bluetooth v5.0
- Ethernet1 Gb/s
- Warranty (typical new)36 mo
07 · Specifications
Key specifications
Directional checkmarks appear only on numeric fields where more or less has a clear meaning. They are not an overall verdict.
| Specification | Gigabyte A520M K V2 1.0 | ASUS PRIME B550M-A AC |
|---|---|---|
| CPU socket | AM4 | AM4 |
| Chipset | AMD A520 | AMD B550 |
| Form factor | Micro ATX | Micro ATX |
| Memory generation | DDR4 | DDR4 |
| RAM slots | 2 | 4✓ |
| Maximum memory | 64 GB | 128 GB✓ |
| M.2 slots | 1 | 2✓ |
| SATA ports | 4 | 4 |
| PCIe x16 slots | 1 | 1 |
| USB ports total | 3 | 3 |
| Ethernet | 1 Gb/s | 1 Gb/s |
| Wi-Fi | not tracked | Wi-Fi 5 Bluetooth v5.0 |
Show additional verified specifications
| Specification | Gigabyte A520M K V2 1.0 | ASUS PRIME B550M-A AC |
|---|---|---|
| ECC support | Yes | No |
| RAID support | Yes | Yes |
| Fan headers | 2 | 4✓ |
| ARGB support | not tracked | Yes |
| Current dataset offer · New | $75snapshot 2026-09-11✓ | $100snapshot 2026-09-11 |
| Warranty (typical new) | 36 mo | 36 mo |
“Not tracked” means the source data does not contain a verified value; no default or guessed specification is substituted.
08 · Customize
Try other models and your own priorities
Presets are starting points. Swap either side, then open Advanced weights only if you want to tune the formula directly.
09 · Alternative
A third option worth checking
The same scenario and market frame checks whether another currently priced model offers a cleaner trade-off.
No cleaner third option in this dataset
The scenario-aware check did not find a currently priced alternative that improves this decision without changing the trade-off. This is a dataset result, not a claim that no other product exists.
10 · Decision guide
Choose based on the trade-off you actually want
These are evidence-linked conditions, not universal buying verdicts. Feature ecosystems, software support and platform preferences remain your call.
Choose A · Gigabyte A520M K V2 1.0 if…
- You can find it at or below its Strong Value threshold of $10 under balanced weights.
Choose B · ASUS PRIME B550M-A AC if…
- You prioritize Gaming Build, Small-Case Fit — it earns the higher capability tier in those tracked scenarios.
- Your priorities resemble Balanced, Gaming Build, Workstation — it has higher Relative Value under those presets at the snapshot offers.
- You can find it at or below its Strong Value threshold of $73 under balanced weights.
11 · Methodology & FAQ
Read the methodology →How to read this comparison
The formula is a linear weighted sum inside the current comparison frame. Capability, price and user priorities stay visible as separate inputs so the result can be challenged and changed.
- Which is better value right now: Gigabyte A520M K V2 1.0 or ASUS PRIME B550M-A AC?
- Under the balanced preset and the 2026-09-11 offer frame, ASUS PRIME B550M-A AC has higher Relative Value under this configuration (64 vs 20). Value is price-dependent and moves with your weighting; capability is a separate question, answered by the tier table.
- Which one is more capable, ignoring price?
- ASUS PRIME B550M-A AC grades higher in 2 of 3 graded scenarios (1 tied) and is never graded lower.
- At what price does the Gigabyte A520M K V2 1.0 become the better value?
- Holding the ASUS PRIME B550M-A AC offer dated in the 2026-09-11 frame fixed, the calculation flips in favour of the Gigabyte A520M K V2 1.0 at roughly $14 or below (balanced preset). Not a price forecast.
- Where can I compare current offers for both?
- Dated offer snapshots for both models are listed on their product pages (linked above); the interactive calculator recalculates both with your own weights and budget.
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Offer frame: 2026-09-11 · dataset generated 2026-09-11 · formula mobo-value-v1.4-benefit-cost-product · Value Score is an estimate based on our current dataset, selected weights, market prices and methodology — not an official product rating or a price forecast. Target prices are calculation thresholds, not predictions. Methodology · Report a data error