Left · ASRock
ASRock B550M Pro4
Spec score
Spec score 42
$90
Amazon US, Oct 24
ASRock B550M Pro4 against ASRock B850M Pro-A WiFi
ASRock B850M Pro-A WiFi leads on the overall index. The price beside each button is the Amazon US reading where ScoutPrices has one; the comparison below is worked on typical prices.
Right · ASRock
ASRock B850M Pro-A WiFi
Spec score
Spec score 66
$210
Amazon US, Oct 24
Head to head
Scores
Indices out of 100 on ScoutSpecs' own scale, one per kind of work. They are not frames per second and not a measurement of any one sample.
Spec score
ASRock B550M Pro4: 42
ASRock B850M Pro-A WiFi: 66
24 ptsto the right
Price and value
Worked on typical prices, the figures the comparison is built on.
Value, points per $100
ASRock B550M Pro4: 37.5
ASRock B850M Pro-A WiFi: 47.1
26%to the right
Typical price
ASRock B550M Pro4: $112
ASRock B850M Pro-A WiFi: $140
$28to the left
From the spec sheets
Memory ceiling
ASRock B550M Pro4: 4600 MT/s
ASRock B850M Pro-A WiFi: 8000 MT/s
74%to the right
M.2 slots
ASRock B550M Pro4: 2
ASRock B850M Pro-A WiFi: 3
50%to the right
PCIe generation
ASRock B550M Pro4: 4
ASRock B850M Pro-A WiFi: 5
25%to the right
The verdict
- The ASRock B850M Pro-A WiFi scores 57% higher on the ScoutSpecs index.
- The ASRock B550M Pro4 typically costs $28 less.
- Per dollar, the ASRock B850M Pro-A WiFi is the better buy: 47.1 points per $100 against 37.5.
Specifications
| Spec | ASRock B550M Pro4 | ASRock B850M Pro-A WiFi |
|---|---|---|
| Socket | AM4 | AM5 |
| Chipset | B550 | B850 |
| Size | MATX | MATX |
| Memory | DDR4 | DDR5 |
| Memory ceiling | 4600 MT/s | 8000 MT/s (better) |
| M.2 slots | 2 | 3 (better) |
| PCIe | Gen 4 | Gen 5 (better) |
| Wi-Fi | No | Yes (better) |
| Brand | ASRock | ASRock |
| Released | 2020 | 2025 (better) |
| Typical price | $112 (better) | $140 |
The better figure of each pair is in green, with a tick.