Intel · LGA1851 · launched 2025
B860 motherboards
B860 is the mainstream LGA1851 chipset: memory overclocking is allowed, CPU overclocking is not, and PCIe 5.0 reaches the graphics slot.
- Boards in database
- 6
- Capacity range
- 417–1360 W
- Sustained core power, derated
- Graphics slot
- PCIe 5.0
- Price range
- $169–$249
- CPU overclocking
- Not allowed
- Memory overclocking (XMP / EXPO)
- Allowed
- The thing people get wrong
- Because the K-series Arrow Lake parts are the ones people pair with B860, and they hold their boost power indefinitely, the VRM matters more here than the missing multiplier control.
The spread inside B860
Inside this one chipset, the ASUS Prime B860M-A WiFi holds about 417 W of sustained core power and the ASUS ROG Strix B860-F Gaming WiFi holds about 1360 W. That is a factor of 3.3 between two boards wearing the same badge, and it is the reason a chipset name is a poor proxy for whether your processor will keep its clocks.
- ASUS ROG Strix B860-F Gaming WiFi1360 W · 16 × 80 A · $249
- ASUS ROG Strix B860-G Gaming WiFi1071 W · 14 × 80 A · $229
- ASUS TUF Gaming B860-Plus WiFi918 W · 12 × 80 A · $199
- ASUS TUF Gaming B860M-Plus WiFi918 W · 12 × 80 A · $189
- ASUS Prime B860-Plus WiFi476 W · 8 × 80 A · $179
- ASUS Prime B860M-A WiFi417 W · 7 × 80 A · $169
The same processors on the best and worst B860 board
Sorted worst verdict first, so the pairings to avoid are at the top.
| Pairing | Verdict | VRM °C | Score | Clock loss |
|---|---|---|---|---|
| Intel Core Ultra 9 285K on ASUS Prime B860M-A WiFi245 W into 417 W | No throttle | 76 | 65 | 0 % |
| Intel Core Ultra 7 265K on ASUS Prime B860M-A WiFi230 W into 417 W | No throttle | 74 | 67 | 0 % |
| Intel Core Ultra 7 265KF on ASUS Prime B860M-A WiFi230 W into 417 W | No throttle | 74 | 67 | 0 % |
| Intel Core Ultra 5 245K on ASUS Prime B860M-A WiFi155 W into 417 W | No throttle | 62 | 78 | 0 % |
| Intel Core Ultra 5 245KF on ASUS Prime B860M-A WiFi155 W into 417 W | No throttle | 62 | 78 | 0 % |
| Intel Core Ultra 9 285K on ASUS ROG Strix B860-F Gaming WiFi245 W into 1360 W | No throttle | 50 | 89 | 0 % |
| Intel Core Ultra 7 265K on ASUS ROG Strix B860-F Gaming WiFi230 W into 1360 W | No throttle | 49 | 90 | 0 % |
| Intel Core Ultra 7 265KF on ASUS ROG Strix B860-F Gaming WiFi230 W into 1360 W | No throttle | 49 | 90 | 0 % |
| Intel Core Ultra 5 245K on ASUS ROG Strix B860-F Gaming WiFi155 W into 1360 W | No throttle | 45 | 93 | 0 % |
| Intel Core Ultra 5 245KF on ASUS ROG Strix B860-F Gaming WiFi155 W into 1360 W | No throttle | 45 | 93 | 0 % |