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White mATX motherboard with CPU socket and heatsinks

Sapphire Tech

Sapphire Tech PURE B850M WIFI AM5 mATX Motherboard + Ryzen 7 9800X3D Combo

SKU CH-0EMT-256TS

A motherboard and processor bundle built for 4K gaming with 8 cores, 16 threads and 96 MB 3D V-Cache

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

CPU + AMD Ryzen 7 9800X3D

  • 96 MB 3D V-Cache on the Ryzen 7 9800X3D drives top-tier 4K frame rates
  • 12+2+1 phase VRM with 55 A per phase keeps the 120 W CPU stable
  • PCIe 5.0 M.2 plus WiFi 6E and 2.5 G LAN deliver fast storage and low-latency networking
  • DDR5 overclocking headroom to 8000 MT/s on the AM5 platform extends upgrade life
  • Pre-tested motherboard and CPU bundle with debug LED simplifies high-end build assembly

Sapphire PURE B850M WIFI AM5 Combo

This bundle pairs a Sapphire PURE B850M WIFI motherboard with the AMD Ryzen 7 9800X3D processor. The board uses the B850 chipset and an AM5 socket in a micro-ATX layout. The CPU delivers 8 cores and 16 threads based on the Zen 5 architecture. It is built for enthusiasts who want a compact platform for high-end gaming and content creation.

96 MB 3D V-Cache on Ryzen 7 9800X3D

The processor includes 96 MB of 3D V-Cache and a maximum boost frequency of 5.2 GHz. This cache design is the primary factor that drives high frame rates in 2K and 4K titles. The motherboard supports DDR5 memory overclocking up to 8000 MT/s and provides a PCIe 5.0 M.2 slot for fast storage. Connectivity includes WiFi 6E, Bluetooth 5.3 and 2.5G LAN.

12+2+1 Phase 55 A Power Delivery

The VRM uses a 12+2+1 phase design rated at 55 A per phase with dual 8-pin CPU power connectors. This configuration is engineered to sustain the 120 W processor under continuous full load. Robust cooling covers the VRM, M.2 and PCH areas to maintain stable operation during extended sessions. A debug LED assists with troubleshooting.

Highlights

  • 96 MB 3D V-Cache on the Ryzen 7 9800X3D drives top-tier 4K frame rates
  • 12+2+1 phase VRM with 55 A per phase keeps the 120 W CPU stable
  • PCIe 5.0 M.2 plus WiFi 6E and 2.5 G LAN deliver fast storage and low-latency networking
  • DDR5 overclocking headroom to 8000 MT/s on the AM5 platform extends upgrade life
  • Pre-tested motherboard and CPU bundle with debug LED simplifies high-end build assembly

Specifications

BrandSAPPHIRE
ModelPURE B850M WIFI+(R7 9800X3D)
CPU Socket TypeAM5
ChipsetAMD B850
HDMI1 x HDMI
DisplayPort1 x DisplayPort

Other versions of this model

2 more in the same range

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

Questions about this item

What does the 96 MB 3D V-Cache on the Ryzen 7 9800X3D actually do for frame rates in a built system?

The 96 MB 3D V-Cache on the Ryzen 7 9800X3D stores more game data directly on the chip, cutting latency and lifting average and 1 % low frame rates in 2K and 4K AAA titles and competitive esports.

What does the PCIe 5.0 M.2 interface on the PURE B850M WIFI cap at in real-world throughput?

The PCIe 5.0 M.2 slot on the PURE B850M WIFI supports drives running at the full 5.0 signalling rate, removing the storage bottleneck for large game loads and content-creation scratch disks.

What clearance does the 12+2+1 phase VRM with 55 A per phase and dual 8-pin CPU power need inside a case?

The robust VRM and its heatsink sit around the AM5 socket on the mATX board, so any case that fits a standard micro-ATX motherboard with room for a CPU cooler will accommodate the power delivery.

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