Intel Xeon D-2899NT socket: BGA 2579

What the Xeon D-2899NT is

The Xeon D-2899NT is the 22-core refresh of the Ice Lake-D network SoC line for soldered BGA 2579 appliances from December 2023. Twenty-two Sunny Cove cores with hyperthreading give 22 cores and 44 threads, with base at 2.2 GHz and up to 3.1 GHz turbo. The package carries 30 MB of Smart Cache. The 135 W envelope suits single-socket network appliances with carrier lifecycle and no multi-socket option.

High threads with integrated network IO suit 5G user plane, CDN edge and virtualised security gateways that consolidate workloads per rack unit. Four channels of DDR4-3200 ECC to 1 TB guard forwarding tables, while 32 PCIe Gen4 lanes from the SoC feed high-speed NICs and NVMe. Deep Learning Boost accelerates inference at the edge without discrete cards.

Network builders land here for maximum D-series threads in one soldered socket. Twenty-two cores share 30 MB of cache for packet locality, while lower core D parts trim power for smaller boxes. Boards that support Xeon D-2800 class silicon need vendor firmware with the 2899NT ID. The Socket vs chipset: what decides whether a CPU works guide covers appliance board choice.

Socket and motherboard compatibility

The D-2899NT solders to BGA 2579 on network appliance boards with no socketed path. Single socket operation only keeps platform cost down against Xeon Scalable racks. Board lists must name the D-2800 refresh family for boot support.

Appliance chipset choice decides NIC breadth, timing and management rather than CPU fit. Builders should confirm heatsink mounting and airflow for 135 W continuous in 1U network chassis.

Memory, PCIe and cooling

DDR4-3200 in 4 channels to 1 TB with ECC feeds 22 network threads. Population with matched DIMMs holds rated speed. ECC corrects single-bit errors during continuous forwarding duty.

PCIe Gen4 with 32 lanes from the SoC plus PCH Gen3 lanes serve NICs, accelerators and NVMe logs. Typical wiring feeds multiple 100 GbE ports plus NVMe. Cooling is a 1U active heatsink with directed airflow for 135 W continuous.

Upgrade paths

The D-2899NT already tops D-series threads, so upgrades mean memory, NICs and NVMe rather than more cores. Filling 4 memory channels and adding faster NICs bring the largest gains for existing owners. Downward moves trim power where 22 cores exceed needs.

Outside soldered network SoCs, Xeon Scalable on LGA 4677 adds sockets and DDR5 for larger fabrics. Most D-2899NT owners expand network IO first.