Memory Slots
- ASRock A520M-HDV Micro ATX AM4 Motherboard
- 2 listed
- ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
- 4 listed
ASRock A520M-HDV Micro ATX AM4 Motherboard vs ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
Side-by-side motherboard specifications, price freshness, and neutral decision guidance to help you carry the right part into your PC build.
ASRock A520M-HDV Micro ATX AM4 Motherboard
ASRock
$68.49
ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
ASRock
$79.00
Decision guide
Which listed differences should decide this comparison?
Start with the constraint that matters in your build, such as expansion, physical fit, capacity, or power. These are catalog specifications, not benchmark or gaming-performance estimates.
Max Memory
- ASRock A520M-HDV Micro ATX AM4 Motherboard
- 64 GB listed
- ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
- 128 GB listed
M.2 Slots
- ASRock A520M-HDV Micro ATX AM4 Motherboard
- Yes listed
- ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
- 2 listed
Listed price context
- ASRock A520M-HDV Micro ATX AM4 Motherboard: $68.49 in the catalog. Confirm availability and final price with the retailer before purchasing.
- ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard: $79.00 in the catalog. Confirm availability and final price with the retailer before purchasing.
Comparison complete · next step
Turn this motherboard decision into a compatible PC.
Choose the part you want to keep. Guided Builder carries it forward, then helps you set the budget and complete every remaining slot.
- Compared the specs
- Keep one motherboard
- Check the complete build
Choose your starting part
Guided Builder is recommended. Advanced stays available as the manual path.
Starting part
ASRock A520M-HDV Micro ATX AM4 Motherboard
Better fit if max memory speed matters: 4733 MHz listed.
Starting part
ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
Better fit if memory slots matters: 4 listed.
Material specification differences
Direct specifications only - not benchmarks or an overall score.
- If memory slots matters: ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard lists 4.
- If max memory matters: ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard lists 128 GB.
- If m.2 slots matters: ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard lists 2.
- If max memory speed matters: ASRock A520M-HDV Micro ATX AM4 Motherboard lists 4733 MHz.
Specification profile
Each spec is scaled as a % of the leader in your selection - so even the runner-up stays visible on the chart.
Key specs at a glance
Top 4 specs that matter most. Full spec-by-spec breakdown is in the table below.
Memory
Memory SlotsHigher is better
ASRock A520M-HDV Micro ATX AM4 Motherboard
2
ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
4
Max MemoryHigher is better
ASRock A520M-HDV Micro ATX AM4 Motherboard
64 GB
ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
128 GB
Max Memory SpeedHigher is better
ASRock A520M-HDV Micro ATX AM4 Motherboard
4733 MHz
ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
3200 MHz
Connectivity
M.2 SlotsHigher is better
ASRock A520M-HDV Micro ATX AM4 Motherboard
Yes
ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
2
Comparison complete · next step
Turn this motherboard decision into a compatible PC.
Choose the part you want to keep. Guided Builder carries it forward, then helps you set the budget and complete every remaining slot.
- Compared the specs
- Keep one motherboard
- Check the complete build
Choose your starting part
Guided Builder is recommended. Advanced stays available as the manual path.
Starting part
ASRock A520M-HDV Micro ATX AM4 Motherboard
Better fit if max memory speed matters: 4733 MHz listed.
Starting part
ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard
Better fit if memory slots matters: 4 listed.
Material specification differences
Direct specifications only - not benchmarks or an overall score.
- If memory slots matters: ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard lists 4.
- If max memory matters: ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard lists 128 GB.
- If m.2 slots matters: ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard lists 2.
- If max memory speed matters: ASRock A520M-HDV Micro ATX AM4 Motherboard lists 4733 MHz.
From comparison to complete build
Choose the part you want to build around.
Your selection carries into the builder. Guided Builder keeps it in place and helps you complete the remaining compatible parts.
- Compare specs
- 02Keep a part
- 03Finish the PC
| Component | $68.49 Checked 8/23/2026, 12:09:43 PM Continue with this part Keep it selected while you complete the rest of the PC. | $79.00 Continue with this part Keep it selected while you complete the rest of the PC. |
|---|---|---|
| Memory | ||
| RAM Type | DDR4 | DDR4 |
| Memory Slots | 2 | 4 |
| Max Memory | 64 GB | 128 GB |
| Max Memory Speed | 4733 MHz | 3200 MHz |
| Physical | ||
| Form Factor | Micro ATX | Micro ATX |
| Connectivity | ||
| CPU Socket | AM4 | AM4 |
| Chipset | AMD A520 | AMD B450 |
| SATA Ports | 4 | 4 |
| M.2 Slots | Yes | 2 |
| WiFi | No | Yes |
| RAID Support | Yes | Yes |
| ECC Support | No | No |
| PCIe Slots | 2 | 2 |
| Other | ||
| Price Updated At | 2026-08-23T12:09:43.635+00:00 | - |
PC Launchpad earns commissions from qualifying purchases. Amazon prices can change at any time; confirm the current price and availability on Amazon before buying.
Common questions
How should I choose between these motherboards?v
Start with the specifications that matter for your workload, then review power, physical fit, platform, and connectivity tradeoffs. PC Launchpad highlights only direct, verifiable specification differences and does not declare a universal winner.
Can I mix any of these motherboards with the rest of my parts?v
PC Launchpad's Guided Builder checks compatibility across every component automatically. Click "Use in Build" on any option above and the builder will flag socket, form-factor, wattage, or clearance issues before you check out.
Where are the prices from?v
Prices come from Amazon availability, which PC Launchpad updates regularly. If a component is out of stock or prices change, the comparison may not reflect the latest number - always confirm on the retailer page before you buy.
Is the ASRock A520M-HDV Micro ATX AM4 Motherboard better than the ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard?v
It depends on the workload. Use the chart summary above for the quick read, then look at the spec-by-spec breakdown to see which individual metrics favor which part. Verifiable numeric winners are emphasized only when the data has a clear direction, such as higher capacity or lower latency.
Which one is better value - the ASRock A520M-HDV Micro ATX AM4 Motherboard or the ASRock B450M/ac R2.0 Micro ATX AM4 Motherboard?v
Value depends on your workload and the rest of the build. Compare the specifications you will actually use, then confirm the current retailer price before purchasing; PC Launchpad does not infer benchmark performance from catalog specifications.