Disclosure: we earn a commission when you buy through links on this page, at no extra cost to you. Build recommendations on this page are generated by AI from a compatibility-checked parts catalog, and prices are estimates.
B650 vs B850: is the newer AMD chipset worth it?
Updated Oct 25, 2026. Prices come from our catalogue and may have changed.
B850 is not a big upgrade. It uses the same AM5 socket and the same Ryzen chips as B650. The main change is storage. AMD requires every B850 board to include a PCIe 5.0 M.2 slot, while B650 leaves that up to the motherboard maker. WiFi 7 shows up more on B850 mainly because those boards are newer, not because the chipset demands it. In our catalogue, B650 runs $150 at the median against $198 for B850, a gap of $48. Pick B850 for a guaranteed fast M.2 slot. Pick B650 to save money if a PCIe 4.0 SSD is enough for you.
Key differences
| Criterion | B650 | B850 |
|---|---|---|
| Median price in our catalogue | $150 | $198 |
| Socket and CPU support | AM5, works with Ryzen 7000, 8000 and 9000 series desktop chips | AM5, works with the exact same Ryzen chips as B650 |
| Fastest M.2 slot for an SSD | A PCIe 5.0 M.2 slot is optional, and many B650 boards stop at PCIe 4.0 | AMD requires at least one PCIe 5.0 M.2 slot on every B850 board |
| Graphics card slot speed | Usually PCIe 4.0, and PCIe 5.0 is up to the motherboard maker | Same rule as B650, PCIe 5.0 is the motherboard maker's choice |
| Fastest USB port | No USB4 required, and the fastest port is usually USB 3.2 at 20 Gbps | Same limit, since USB4 is required only on the pricier X870 and X870E chipsets |
| WiFi standard available | Mostly WiFi 6E among the boards in our catalogue | Mostly WiFi 7 among the boards in our catalogue, because these boards came out more recently, not because the chipset requires it |
Prices in our catalogue today
| Price | B650 | B850 |
|---|---|---|
| Cheapest | $117 | $111 |
| Median | $150 | $198 |
Choose B650 if…
- You want a solid AM5 board for less and would rather spend the difference on the CPU or graphics card
- A PCIe 4.0 SSD is fast enough for you
- Your router does not support WiFi 7, so a B650 board with WiFi 6E covers what you need
Choose B850 if…
- You want a PCIe 5.0 M.2 slot without checking every B650 spec sheet
- You want WiFi 7 now, and most boards with it at this price are B850
- You are building today and want the newer of the two mainstream AM5 chipsets
Best value B650
- GIGABYTE B650 Eagle$140 at Newegg
An affordable B650 board that still has three M.2 slots and built-in WiFi 6E.
- GIGABYTE B650 AORUS Elite$160 at Newegg
Three PCIe x16 slots and 2.5 gigabit networking.
- Asus TUF Gaming B650-PLUSNo longer available
From a well-known budget line, with support for up to 256 GB of RAM across four slots.
Best value B850
- GIGABYTE B850M Eagle ICE$163 at Newegg
A compact Micro ATX B850 board with two M.2 slots and WiFi 6E.
- GIGABYTE B850 Eagle$190 at Newegg
A full-size ATX B850 board with three M.2 slots.
- MSI MAG B850 Tomahawk MAX$210 at Newegg
Four M.2 slots, WiFi 7 and memory support up to 8400 MT/s.
Cheapest B650 parts
- GIGABYTE B650M Gaming Plus WiFi$117 at Newegg
- ASRock B650M-HDV/M.2 White$120 at Newegg
- GIGABYTE B650M D3HP AX$130 at Newegg
Cheapest B850 parts
- ASRock B850M-X R2.0$111 at Newegg
- ASRock B850M-X WiFi R2.0$122 at Newegg
- ASRock B850M Pro-A$130 at Newegg
Frequently asked questions
Does B850 use a different CPU socket than B650?
No. Both use the AM5 socket and support the same Ryzen desktop chips, including the 7000, 8000 and 9000 series. Moving from a B650 board to a B850 one does not change which CPU you can install.
Will a B850 motherboard make my games run faster than a B650 one?
No. The chipset does not affect gaming performance. That comes from the CPU and the graphics card. A B850 board mainly changes storage and connectivity options, not frame rates.
Do I need a B850 board to get a PCIe 5.0 SSD slot?
Not strictly. Some B650 boards have one too, but it is up to the motherboard maker. On B850 it is guaranteed, since every board has at least one PCIe 5.0 M.2 slot.
Is WiFi 7 only available on B850 motherboards?
No. WiFi is added by the motherboard maker and is not part of what the chipset requires. It shows up mostly on B850 boards in our catalogue simply because those boards launched more recently, after WiFi 7 hardware became common.
Should I upgrade from a B650 board to a B850 one?
Usually not just for the chipset. If your current board already gives you the storage and wireless you need, keep it. Consider B850 mainly when buying new and you specifically want a guaranteed PCIe 5.0 M.2 slot or WiFi 7 out of the box.
Can I put a Ryzen 9000 series CPU in a B650 motherboard?
Yes, as long as the board maker has released a BIOS update for it. Both B650 and B850 boards support the Ryzen 7000, 8000 and 9000 series on the same AM5 socket.
Sources
More comparisons
Builds that use this
Describe your own needs and budget, and get three compatibility-checked builds in minutes.