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Sapphire NITRO+ B850M mATX motherboard with Ryzen 9 9900X3D CPU installed

Sapphire Tech

Sapphire Tech NITRO+ B850M WIFI + Ryzen 9 9900X3D AMD motherboard

SKU CH-3EZA-1716R

A compact AM5 motherboard paired with a 12-core 24-thread Zen5 CPU featuring 144MB 3D V-Cache, DDR5 8000+MT/s overclocking, PCIe 5.0 M.2, WiFi 6E, Bluetooth 5.3 and 2.5G LAN

  • CPU Socket TypeAM5
  • ChipsetAMD B850
  • HDMI1 x HDMI
  • DisplayPort1 x DisplayPort

cpu + R9 9900X3D

  • 12-core Ryzen 9 9900X3D with 144MB 3D V-Cache drives 2K/4K/8K gaming
  • 12+2+1 phase power delivery and upgraded heatsinks sustain peak CPU loads
  • PCIe 5.0 M.2, WiFi 6E, Bluetooth 5.3 and 2.5G LAN enable fast storage and lag-free play
  • AM5 platform supports Ryzen 7000/8000/9000 series with DDR5 8000+ MT/s overclocking
  • Compact mATX design fits most cases with pre-validated plug-and-play setup

Sapphire NITRO+ B850M WIFI AM5 combo

This bundle pairs a Sapphire NITRO+ B850M WIFI motherboard with an AMD Ryzen 9 9900X3D 12-core 24-thread Zen5 processor. The CPU features 144MB of 3D V-Cache designed for high-frame-rate gaming and multi-threaded workloads. The mATX board uses the AMD B850 chipset and AM5 socket. It targets enthusiasts building a compact high-performance system.

Check AM5 cooler clearance and DDR5 kit speed

Verify that your CPU cooler fits the AM5 mounting pattern and clears the board's 12+2+1 phase VRM heatsinks. The four DDR5 slots support up to 192GB total capacity and EXPO or XMP profiles up to 8000 MT/s. Confirm your memory kit is on the vendor QVL for the rated speed. Rear I/O includes HDMI, DisplayPort, 2.5G LAN, WiFi 6E and Bluetooth 5.3 antennas.

12+2+1 phase VRM handles sustained flagship loads

The robust power delivery keeps the 12-core 9900X3D stable during prolonged full-load sessions such as rendering or extended gaming. Upgraded heatsinks dissipate heat from the VRM and the PCIe 5.0 M.2 slot under continuous throughput. Dual-channel DDR5 bandwidth and PCIe 5.0 graphics throughput remain consistent without thermal throttling.

Highlights

  • 12-core Ryzen 9 9900X3D with 144MB 3D V-Cache drives 2K/4K/8K gaming
  • 12+2+1 phase power delivery and upgraded heatsinks sustain peak CPU loads
  • PCIe 5.0 M.2, WiFi 6E, Bluetooth 5.3 and 2.5G LAN enable fast storage and lag-free play
  • AM5 platform supports Ryzen 7000/8000/9000 series with DDR5 8000+ MT/s overclocking
  • Compact mATX design fits most cases with pre-validated plug-and-play setup

Specifications

BrandSAPPHIRE
ModelNITRO+ B850M WIFI+(R9 9900X3D)
CPU Socket TypeAM5
ChipsetAMD B850
HDMI1 x HDMI
DisplayPort1 x DisplayPort

Other versions of this model

4 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

What comes in the Sapphire NITRO+ B850M WIFI combo box and what must I buy separately?

The combo includes the mATX motherboard and the Ryzen 9 9900X3D 12-core 24-thread processor. You must add DDR5 memory modules, a graphics card, storage drives, a CPU cooler, a power supply and a case.

How do I decide between the memory speeds and capacities this board supports?

The board has four DDR5 slots and runs up to 8000 MT/s when overclocked. Maximum capacity is 192 GB using 48 GB modules. Choose EXPO or XMP kits rated for your target speed and capacity.

What does the 144 MB 3D V-Cache figure mean for real-world gaming?

The 144 MB 3D V-Cache on the 12-core 9900X3D reduces latency for game data, lifting frame rates at 2K, 4K and 8K resolutions while the 24 threads handle heavy multi-thread workloads.

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