Lenovo 4XG7A72954 ST650 V2 Gold 5315Y 8C 140W 3.2GHZ

Lenovo 4XG7A72954 Intel Xeon Gold 5315Y 8-Core Processor for ThinkSystem ST650 V2

Overview

The Lenovo 4XG7A72954 is a factory-new Intel Xeon Gold 5315Y processor option for the ThinkSystem ST650 V2 tower server. Rated at 140W TDP with 8 cores running at a 3.2 GHz base clock and 3.6 GHz boost, this is a purpose-matched upgrade for workloads that need sustained single-threaded throughput — think virtualization hosts with latency-sensitive VMs, physical security management servers running VMS platforms, or enterprise edge deployments where a single-socket tower handles both compute and storage I/O simultaneously.

Built on Intel's 3rd Generation Xeon Scalable (Ice Lake) architecture at 10nm lithography, the 5315Y sits in the Xeon Gold 5000 Series and occupies the LGA 4189 socket on the ST650 V2 motherboard. If you are configuring or expanding a ThinkSystem ST650 V2 and need a documented, channel-sourced processor option — not a grey-market pull — this SKU provides exactly that.

Key Features

• 8 Cores / 16 Threads at 3.2 GHz Base: The 5315Y's 16 logical threads handle moderate-density virtualization without the cost premium of higher core-count Gold or Platinum parts. For a physical security server running a VMS, access control, and a NAS service concurrently, 16 threads gives each workload meaningful headroom without thread contention at normal load.
• 3.6 GHz Single-Core Boost: When one thread needs to sprint — query execution, codec transcoding for live playback, or a real-time analytics inference job — the 5315Y steps up to 3.6 GHz automatically. The 400 MHz spread between base and boost is modest but consistent, which matters more for server uptime predictability than a wide-swing consumer chip.
• 140W TDP: At 140W, this processor draws at the top of the standard Xeon Gold tier. Verify that the ST650 V2 chassis cooling configuration (fan module count and airflow path) is appropriate for the full 140W envelope under sustained load — Lenovo's configuration guides specify minimum cooling requirements per CPU TDP class.
• 12 MB L3 Cache: The 12 MB cache sits between the 5315Y's 8 cores and main memory. For workloads with hot working sets — frequent database lookups, repeated codec parameter access, active VMS index tables — cache capacity directly reduces memory latency penalties. 12 MB per 8 cores is competitive within the Xeon Gold 5000 tier at this core count.
• DDR4-SDRAM Memory Support: The 5315Y supports DDR4 memory channels, consistent with the ST650 V2 platform's memory subsystem. This determines which DIMMs are qualified for use in populated slots — confirm RDIMM versus LRDIMM requirements against Lenovo's ST650 V2 memory compatibility matrix before ordering DIMMs separately.
• 11.2 GT/s System Bus: The UPI (Ultra Path Interconnect) bus rate of 11.2 GT/s governs how fast this processor communicates with PCIe devices, storage controllers, and (in dual-socket configurations) the second processor. For a single-socket ST650 V2 build, this rating sets the ceiling on NVMe storage throughput and GPU/accelerator bandwidth available to the CPU.
• 64-Bit Operating Mode / LGA 4189 Socket: Full 64-bit instruction support is expected at this tier — worth noting for OS and hypervisor compatibility. The LGA 4189 socket is exclusive to 3rd Gen Xeon Scalable; this processor does not drop into earlier Ice Lake-SP or Cascade Lake systems, so confirm the target server is an ST650 V2 before purchasing.
• 10nm Ice Lake Architecture: The Ice Lake-SP microarchitecture introduced per-core AVX-512 improvements and increased memory bandwidth over Cascade Lake. For workloads running AI inference at the edge — video analytics engines, anomaly detection pipelines — AVX-512 acceleration can meaningfully reduce inference latency without requiring a discrete GPU.

Integration and Compatibility

The 4XG7A72954 is a Lenovo-configured processor option for the ThinkSystem ST650 V2 platform. The LGA 4189 socket is specific to 3rd Gen Intel Xeon Scalable processors; this CPU is not compatible with earlier Lenovo server generations using LGA 3647 (Cascade Lake) or LGA 4677 (4th Gen Sapphire Rapids) sockets. For a complete Lenovo server CPU and memory configuration, cross-reference this processor against the Lenovo server and compute catalog and Lenovo's ServerProven compatibility tool for the ST650 V2.

Workload fit for rack and tower servers: the 5315Y is a solid match for single-socket deployments running VMware ESXi, Microsoft Hyper-V, or Linux KVM with up to a dozen moderate-density VMs. For physical security infrastructure — a network video recorder appliance, VMS server, or access control management platform — 8 cores at this clock speed provides adequate headroom for 32–64 camera streams depending on resolution and codec complexity. If your deployment requires higher concurrent stream counts or heavier analytics offload, evaluate higher core-count options within the Xeon Gold 5300 or 6300 families on the same platform.

Power and thermal planning: at 140W TDP, this processor requires adequate chassis airflow. Consult Lenovo's power and UPS planning resources to ensure rack PDU and UPS capacity accounts for full CPU TDP alongside storage, memory, and PCIe device draw. For a tower deployment in a wiring closet or edge server room, confirm ambient temperature and airflow clearance meet Lenovo's minimum thermal specs for the 140W configuration.

Frequently Asked Questions

Q: Is the Lenovo 4XG7A72954 compatible with the ThinkSystem ST650 V2 server?

A: Yes. The 4XG7A72954 is a Lenovo-designated processor option for the ThinkSystem ST650 V2. It uses the LGA 4189 socket and is part of the 3rd Generation Intel Xeon Scalable (Ice Lake-SP) family, which is the supported CPU generation for the ST650 V2 platform.

Q: What is the base and boost clock speed of the processor in the 4XG7A72954?

A: The Intel Xeon Gold 5315Y included in this option runs at 3.2 GHz base clock with a 3.6 GHz boost frequency across its 8 cores.

Q: How many cores and threads does the 5315Y processor provide?

A: The Xeon Gold 5315Y has 8 physical cores and supports 16 threads via Intel Hyper-Threading, making it suitable for moderate-density virtualization and multi-threaded server workloads.

Q: What is the TDP of this processor, and does it require special cooling in the ST650 V2?

A: The 5315Y carries a 140W Thermal Design Power rating. This is at the upper end of the standard Xeon Gold tier. Verify that your ST650 V2 chassis is configured with adequate fan modules and airflow per Lenovo's cooling guidelines for 140W processors before deploying.

Q: What memory type does the 4XG7A72954 processor support?

A: The Xeon Gold 5315Y supports DDR4-SDRAM. Confirm RDIMM or LRDIMM requirements and qualified DIMM speeds against the ST650 V2 memory compatibility matrix when selecting DIMMs for your build.

Q: Can the 5315Y be used in other Lenovo server platforms besides the ST650 V2?

A: The LGA 4189 socket used by the 5315Y is specific to 3rd Generation Intel Xeon Scalable platforms. It is not compatible with earlier LGA 3647 (Cascade Lake) or newer LGA 4677 (Sapphire Rapids) Lenovo systems. Always verify socket compatibility against Lenovo's ServerProven database for the specific server model you are configuring.

Eden Phillips

The 4XG7A72954 slots into a specific gap in the ST650 V2 configuration matrix: if you need a single-socket tower with genuine server-grade reliability, DDR4 ECC memory support, and a processor that stays inside a standard power envelope without exotic cooling, the Xeon Gold 5315Y at 140W and 3.2 GHz base is a deliberate choice rather than a default one. Eight cores with 16 threads is the floor for running a production VMS alongside a database and OS services without thread starvation during peak recording events.

Technical Highlights:

• 3.6 GHz Boost on 8 Cores: The 400 MHz spread between base and boost is conservative by design — the 5315Y prioritizes sustained throughput over peak burst. For a security server running continuous 24/7 recording, predictable base-clock performance matters more than headline boost numbers.
• 12 MB L3 Cache / 11.2 GT/s UPI: The cache-to-core ratio (1.5 MB per core) and 11.2 GT/s bus are well-matched to NVMe storage and 25GbE NIC combinations on the ST650 V2's PCIe slots — you won't be bottlenecked at the CPU interconnect with typical security appliance I/O loads.
• 10nm Ice Lake AVX-512: If your VMS or analytics platform uses Intel OpenVINO or similar inference frameworks, the 5315Y's AVX-512 implementation processes wider vectors per clock than Cascade Lake equivalents — relevant if you're running on-box license plate or object detection without a discrete GPU.

Deployment Considerations:

• At 140W TDP, confirm fan module configuration against Lenovo's ST650 V2 thermal matrix before ordering — undercooled 140W configurations will throttle under sustained load, undermining the 3.2 GHz base clock guarantee.
• The LGA 4189 socket is a hard compatibility boundary: this processor will not physically install in an ST650 V1 or any Cascade Lake-generation Lenovo tower. If the existing system is pre-Ice Lake, this is not a drop-in upgrade — the motherboard must be an ST650 V2 variant.

Best fit: a physical security operations center deploying a single tower server to handle Milestone XProtect or Genetec Security Center alongside an access control management service and a local file archive — workloads that benefit from DDR4 ECC stability and consistent 3.2 GHz throughput more than from raw core count.