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ASUS TUF B850M-E mATX board with Ryzen 9 9900X3D CPU in AM5 socket

ASUS

ASUS TUF GAMING B850M-E WIFI + Ryzen 9 9900X3D AMD motherboard & CPU combo

SKU CH-8TWJ-FNJQZ

AM5 motherboard and 120W 12-core Zen 5 CPU combo with DDR5, WiFi 6E, 2.5Gb Ethernet, PCIe 5.0 graphics slot and rear 10Gbps USB-C

  • CPU Socket TypeAM5

Motherboard TUF GAMING B850M-E WIFI

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CPU + Ryzen 9 9900X3D

  • 12-core Zen 5 CPU with 128MB L3 cache for high frame rates
  • 80A DrMOS power stages on 8-layer PCB deliver stable overclocking headroom
  • DDR5 AEMP 3.0 optimises memory speeds across four DIMM slots
  • Rear USB 3.2 Gen2x2 Type-C at 10Gbps plus WiFi 6E and 2.5Gb Ethernet
  • TUF components, 5K capacitors and 72-hour salt-spray I/O shield ensure durability

TUF B850M-E WIFI & Ryzen 9 9900X3D Combo

This bundle pairs an ASUS TUF GAMING B850M-E WIFI motherboard with an AMD Ryzen 9 9900X3D processor. The AM5 socket supports Ryzen 9000, 8000 and 7000 series chips. TUF-certified components, 5K black metallic capacitors and a corrosion-resistant stainless steel I/O shield tested for 72-hour salt spray provide military-grade durability. The mATX form factor suits compact gaming builds.

Suits gamers wanting high frame rates in a small

The 120W Zen 5 CPU delivers 128MB L3 cache and 12MB L2 cache with integrated Radeon graphics. Four DDR5 slots with AEMP 3.0 optimise memory performance. WiFi 6E and 2.5Gb Ethernet ensure low-latency networking. Builders requiring a full-size ATX board or more than four DIMM slots should consider a different platform.

PCIe 5.0 x16 SafeSlot with x4 M.2 support

The board includes a PCIe 5.0 x16 SafeSlot and enhanced heatsinks covering the VRM and M.2 areas, including a PCIe 5.0 x4 slot. An 8+2+1 DrMOS power stage design rated at 80A per stage sits on an 8-layer PCB with AI Overclocking. Rear USB 3.2 Gen2x2 Type-C at 10Gbps and front USB 3.2 Gen1 Type-C complete the high-speed I/O.

Highlights

  • 12-core Zen 5 CPU with 128MB L3 cache for high frame rates
  • 80A DrMOS power stages on 8-layer PCB deliver stable overclocking headroom
  • DDR5 AEMP 3.0 optimises memory speeds across four DIMM slots
  • Rear USB 3.2 Gen2x2 Type-C at 10Gbps plus WiFi 6E and 2.5Gb Ethernet
  • TUF components, 5K capacitors and 72-hour salt-spray I/O shield ensure durability

Specifications

BrandASUS
ModelTUF GAMING B850M-E WIFI+R9 9900X3D
CPU Socket TypeAM5

Other versions of this model

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Questions about this item

Should I choose the B850M-E WIFI with the Ryzen 9 9900X3D or look for a different AM5 combo?

This combo pairs the TUF GAMING B850M-E WIFI motherboard with the Ryzen 9 9900X3D CPU. The board uses an AM5 socket and supports Ryzen 9000, 8000 and 7000 series processors, so the included 9900X3D is a native fit.

What does the 128 MB L3 cache on the 9900X3D actually do for gaming?

The 128 MB L3 cache on the Ryzen 9 9900X3D reduces memory latency by keeping more game data on the chip itself. This translates to higher and more consistent frame rates in cache-sensitive titles.

Does the rear USB 3.2 Gen2x2 Type-C port run at the full 10 Gbps on this board?

Yes. The rear USB 3.2 Gen2x2 Type-C port is rated for 10 Gbps. Actual throughput will depend on the connected device and cable quality, but the controller and PHY on the B850M-E WIFI support that ceiling.

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