Max Memory Speed
- ASRock B550M-HDV Micro ATX AM4 Motherboard
- 4600 MHz listed
- Gigabyte A520M K V2 Micro ATX AM4 Motherboard
- 5100 MHz listed
Side-by-side motherboard specifications, price freshness, and neutral decision guidance to help you carry the right part into your PC build.


Decision guide
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.
Comparison complete · next step
Choose the part you want to keep. Guided Builder carries it forward, then helps you set the budget and complete every remaining slot.
Choose your starting part
Guided Builder is recommended. Advanced stays available as the manual path.

A valid starting point when its price, platform, and remaining build requirements fit your plan.

Better fit if max memory speed matters: 5100 MHz listed.
Direct specifications only - not benchmarks or an overall score.
Each spec is scaled as a % of the leader in your selection - so even the runner-up stays visible on the chart.
Top 4 specs that matter most. Full spec-by-spec breakdown is in the table below.
Comparison complete · next step
Choose the part you want to keep. Guided Builder carries it forward, then helps you set the budget and complete every remaining slot.
Choose your starting part
Guided Builder is recommended. Advanced stays available as the manual path.

A valid starting point when its price, platform, and remaining build requirements fit your plan.

Better fit if max memory speed matters: 5100 MHz listed.
Direct specifications only - not benchmarks or an overall score.
Your selection carries into the builder. Guided Builder keeps it in place and helps you complete the remaining compatible parts.
| Component | ![]() $69.99 Checked 8/23/2026, 12:09:41 PM Continue with this part Keep it selected while you complete the rest of the PC. | ![]() $63.95 Checked 8/23/2026, 12:09:41 PM Continue with this part Keep it selected while you complete the rest of the PC. |
|---|---|---|
| Memory | ||
| RAM Type | DDR4 | DDR4 |
| Memory Slots | 2 | 2 |
| Max Memory | 64 GB | 64 GB |
| Max Memory Speed | 4600 MHz | 5100 MHz |
| Physical | ||
| Form Factor | Micro ATX | Micro ATX |
| Connectivity | ||
| CPU Socket | AM4 | AM4 |
| Chipset | AMD B550 | AMD A520 |
| SATA Ports | 4 | 4 |
| M.2 Slots | Yes | Yes |
| WiFi | No | No |
| RAID Support | Yes | Yes |
| ECC Support | No | No |
| PCIe Slots | 2 | 2 |
| Other | ||
| Price Updated At | 2026-08-23T12:09:41.137+00:00 | 2026-08-23T12:09:41.137+00:00 |
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.
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.
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.
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.
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.