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Deal.ai › ASUS › Motherboards
ASUS
ASUS Prime B850M-A Motherboard AMD Ryzen 9 9900X CPU Combo

ASUS Prime B850M-A Motherboard AMD Ryzen 9 9900X CPU Combo

Best price now

$759.99at NeweggChecked 18 h ago

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Price facts

  • Last seen at $759.99 at Newegg on Nov 10.

Our take on the ASUS Prime B850M-A Motherboard AMD Ryzen 9 9900X CPU Combo

A bundle of ASUS's Prime B850M-A micro-ATX board and AMD's Ryzen 9 9900X, a 12-core, 24-thread Zen 5 desktop CPU. The board covers the essentials for a compact build: PCIe 5.0, three M.2 slots and 2.5Gb Ethernet, with no Wi-Fi included. The 9900X is one of the strongest all-round AM5 chips for gaming and heavy multitasking, though it runs warm and wants a good cooler. Buyers who need lots of PCIe cards or onboard wireless should look at a full ATX or Wi-Fi-equipped board instead.

Best forCompact gaming and productivity builds12-core multitasking and content workBuilders who already have a CPU coolerBuyers wanting PCIe 5.0 and multiple M.2 drives
Pros
  • 12 cores and 24 threads on the current AM5 platform
  • PCIe 5.0 graphics slot and three M.2 slots
  • Micro-ATX size fits smaller cases
  • 2.5Gb Ethernet for fast wired networking
  • Board and CPU matched, so no compatibility guesswork
Cons
  • No Wi-Fi or Bluetooth onboard
  • 9900X runs hot and needs a strong cooler, not included
  • Micro-ATX limits expansion versus full ATX boards
  • No bundled cooler with the CPU

ASUS Prime B850M-A Motherboard AMD Ryzen 9 9900X CPU Combo prices at every store

  • NeweggNew

    In stock

    $759.99Free shippingChecked 18 h ago
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Store links may earn us a commission. Price via Klarna.

ASUS Prime B850M-A Motherboard AMD Ryzen 9 9900X CPU Combo price history

Lowest price we've seen: $759.99 on Nov 10 at Newegg. Tracked across 1 store since Nov 10.

What reviewers say

The Ryzen 9 9900X is well received for its 12-core performance in gaming and heavy multitasking, with reviewers noting it trails the X3D chips in some games. The Prime B850M-A is seen as a solid, no-frills micro-ATX board whose lack of Wi-Fi and modest power delivery are the main gripes.

What people mention
  • PerformancePraisedOwners report the 9900X handles gaming and heavy multitasking without strain.
  • HeatMixedThe CPU runs warm under all-core loads and needs a capable cooler.
  • ConnectivityCriticisedBuyers miss onboard Wi-Fi and Bluetooth on the Prime board.
  • ExpansionPraisedThree M.2 slots and PCIe 5.0 are seen as generous for a micro-ATX board.
  • BuildMixedThe board is easy to assemble, but its power delivery is basic next to premium boards.

From Newegg

  • ASUS PRIME B850M-A motherboard paired with AMD Ryzen 9 9900X CPU
  • AMD B850 chipset with AM5 socket
  • micro-ATX form factor
  • PCIe 5.0 ready
  • Three M.2 slots
  • Realtek 2.5Gb Ethernet
In the box
ASUS PRIME B850M-A Motherboard, AMD Ryzen 9 9900X CPU

About the ASUS Prime B850M-A Motherboard AMD Ryzen 9 9900X CPU Combo

This bundle pairs the ASUS Prime B850M-A motherboard with the AMD Ryzen 9 9900X processor. The board uses the AMD B850 chipset and an AM5 socket, in a micro-ATX form factor.

The board is PCIe 5.0 ready and has three M.2 slots for storage. Networking is handled by Realtek 2.5Gb Ethernet.

Chipset
AMD B850
Socket
AM5
Form factor
Micro-ATX
CPU
AMD Ryzen 9 9900X
Expansion
PCIe 5.0 ready
Storage
Three M.2 slots
Ethernet
Realtek 2.5Gb
In the box
ASUS Prime B850M-A motherboard, AMD Ryzen 9 9900X CPU

Questions and answers

Does this combo include a CPU cooler?
No. The Ryzen 9 9900X ships without a cooler, so budget for a tower air cooler or a 240mm or larger liquid cooler.
Is the Ryzen 9 9900X good for gaming?
Yes. It handles modern games well, though AMD's X3D chips are faster in some titles. It is strongest when gaming is mixed with streaming, editing or other heavy work.
Does the Prime B850M-A have Wi-Fi?
No. It has 2.5Gb Ethernet only, so add a Wi-Fi card or use a USB adapter if you need wireless.
What memory does this combo take?
DDR5 only. The board has four DIMM slots, and DDR5-6000 kits are a common pairing with Ryzen 9000 chips.
Will this fit a micro-ATX case?
Yes. The board is micro-ATX, so it fits micro-ATX and ATX cases. Check clearance for your cooler and graphics card.
Can I upgrade the CPU later?
Yes. The AM5 socket supports other Ryzen 7000 and 9000 series chips, so you can swap the CPU without changing the board.
Where is the ASUS Prime B850M-A Motherboard AMD Ryzen 9 9900X CPU Combo cheapest?
At Newegg, for $759.99, as of our latest check.

Stores we've priced the ASUS Prime B850M-A Motherboard AMD Ryzen 9 9900X CPU Combo at

  • Newegg deals and prices

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