Lenovo 4XG7A72928 ST650 V2 Gold 6348 28C 235W 2.6GHZ

Lenovo 4XG7A72928 Intel Xeon Gold 6348 28-Core Server Processor

Overview

The Lenovo 4XG7A72928 is a factory-configured processor option kit pairing the 3rd Generation Intel® Xeon® Gold 6348 with the ThinkSystem ST650 V2 tower server platform. Rated at 235W TDP with 28 cores and 56 threads running at a 2.6 GHz base clock, this is a workload-dense compute option for environments that need sustained throughput — video analytics servers, on-premise VMS hosts, and enterprise surveillance back-end infrastructure where core count directly translates to concurrent stream capacity. If you are configuring or expanding a Lenovo server deployment for a security or AI-compute workload, the 6348 sits in the upper tier of the Gold 6000 series by core count and is worth evaluating against your per-stream processing budget.

Key Features

• 28 Cores / 56 Threads on a Single Socket: At 28 physical cores and 56 logical threads via Hyper-Threading, this processor can handle a large number of parallel workloads simultaneously — critical for VMS platforms running analytics (object detection, motion search) across dozens of concurrent camera streams without dedicated GPU offload. More threads mean less contention when your NVR or analytics engine queues decoding jobs.
• 2.6 GHz Base / 3.5 GHz Boost Clock: The 2.6 GHz sustained base keeps all 28 cores productive under continuous load — relevant for 24/7 recording servers that never idle. The 3.5 GHz boost handles bursty single-threaded tasks (database queries, alarm event processing) without a separate high-clock CPU. The spread between base and boost is 0.9 GHz, giving the scheduler meaningful headroom.
• Heterogeneous Core Configuration — 12 High Priority + 16 Standard: Intel's hybrid priority core design places 12 cores at 2.8 GHz and 16 cores at 2.5 GHz within the same die. Workload schedulers that are priority-core-aware (including recent Linux kernels and Windows Server) can route latency-sensitive tasks to the higher-frequency cores automatically. For a mixed workload — real-time stream ingest plus background video export — this matters in practice, not just on paper.
• 235W TDP — Plan Your Thermal and Power Budget: At 235W, this processor is in the upper power envelope for the Gold 6000 series. That means the ST650 V2 chassis cooling and PSU capacity must be sized accordingly before adding a second socket. In a single-socket configuration, 235W is well within the ST650 V2's rated thermal design, but a dual-socket build doubles the draw — verify your rack PDU and UPS capacity before committing.
• 3rd Gen Xeon Scalable on LGA 4189 (Ice Lake SP): The Ice Lake Scalable platform on LGA 4189 brings PCIe 4.0 support (double the bandwidth of PCIe 3.0 per lane), eight memory channels, and improved per-core IPC over the prior Cascade Lake generation. For storage-heavy surveillance workloads writing continuously to NVMe arrays, PCIe 4.0 throughput removes a bottleneck that PCIe 3.0-based platforms introduced as NVMe drive speeds scaled up.
• 11.2 GT/s UPI Interconnect for Multi-Socket Coherency: The 11.2 GT/s UltraPath Interconnect rate governs cache coherency and memory access latency in a two-socket configuration. At 11.2 GT/s (vs. 10.4 GT/s on prior-gen), NUMA-sensitive applications — including some VMS databases and AI inference frameworks — see lower cross-socket latency. Relevant if you are pairing two of these processors in a dual-socket ST650 V2 build.
• 64-Bit Operating Mode, 10 nm Lithography: Intel's 10 nm SuperFin process on the 6348 improves energy efficiency per clock compared to the 14 nm Cascade Lake predecessor. In always-on server workloads running 8,760 hours per year, even modest efficiency gains compound into meaningful reductions in electricity and cooling costs over a 3–5 year deployment cycle.
• 56-Thread Parallel Capacity for Analytics Pipelines: Modern NVR and VMS platforms that run edge-side or server-side AI analytics (license plate recognition, perimeter detection, people counting) scale their inference threads to available logical processor count. 56 threads give these workloads room to expand without immediately saturating CPU resources and forcing a hardware refresh.

Integration and Compatibility

The 4XG7A72928 is a Lenovo-qualified option kit for the ThinkSystem ST650 V2 platform — do not attempt to install this processor in non-qualified Lenovo chassis or third-party server boards without verifying LGA 4189 socket compatibility and BIOS microcode support. The ST650 V2 supports one or two processors of this generation; mixing processor stepping or TDP classes in a dual-socket configuration is not supported and can result in system instability. For server infrastructure integrations in a physical security stack, pair this platform with a qualified PoE network switch fabric and a storage array sized for your camera count and retention policy — 28 cores can sustain the ingest and analytics load that would saturate a lower core-count platform, but the storage tier needs to keep pace. Consult Lenovo's ServerProven compatibility matrix for validated memory, NVMe, and accelerator options before finalizing your datacenter compute bill of materials.

Frequently Asked Questions

Q: What server platform is the Lenovo 4XG7A72928 designed for?

A: The 4XG7A72928 is a processor option kit qualified for the Lenovo ThinkSystem ST650 V2 tower server. It uses the LGA 4189 socket and is based on the 3rd Generation Intel Xeon Scalable (Ice Lake SP) platform. It is not a universal CPU — install only in Lenovo-qualified ST650 V2 configurations.

Q: How many cores and threads does the Intel Xeon Gold 6348 provide?

A: The Xeon Gold 6348 delivers 28 physical cores and 56 logical threads via Intel Hyper-Threading. It includes 12 high-priority cores running at 2.8 GHz and 16 standard cores at 2.5 GHz base, with an overall boost frequency of 3.5 GHz.

Q: What is the TDP of the 4XG7A72928, and does it affect dual-socket configurations?

A: The Xeon Gold 6348 has a 235W TDP. In a single-socket ST650 V2 this is within the platform's thermal envelope. In a dual-socket build, total processor TDP reaches 470W — ensure your power supply, rack PDU, and UPS are sized accordingly before deploying a two-processor configuration.

Q: Is this processor suitable for running VMS or video analytics workloads?

A: Yes. With 28 cores and 56 threads, the Xeon Gold 6348 provides substantial parallel compute capacity for VMS platforms that run server-side analytics such as object detection, license plate recognition, or people counting alongside continuous stream recording. The PCIe 4.0 support on the Ice Lake SP platform also benefits NVMe storage arrays used in high-camera-count deployments.

Q: Can two 4XG7A72928 processors be installed in the same ST650 V2?

A: The ThinkSystem ST650 V2 supports a dual-socket configuration. Both processors must be of the same model and stepping — mixing TDP classes or processor generations in a dual-socket build is not supported by Lenovo and can cause system instability.

Q: What interconnect speed does the Xeon Gold 6348 use for multi-socket communication?

A: The 6348 uses Intel's UltraPath Interconnect (UPI) at 11.2 GT/s. This governs cache coherency and cross-socket memory access latency in a two-processor configuration, and represents an improvement over the 10.4 GT/s rate on the prior Cascade Lake generation.