Lenovo 4XG7A72927 ST650 V2 Gold 6312U 24C 185W 2.4GHZ

Lenovo 4XG7A72927 Intel Xeon Gold 6312U 24-Core Server Processor

Overview

The Lenovo 4XG7A72927 is a factory-genuine Intel Xeon Gold 6312U processor upgrade designed for the ThinkSystem ST650 V2 rack server platform. Rated at 185W TDP with 24 cores, 48 threads, and a 2.4 GHz base clock that turbos to 3.6 GHz, this 3rd Generation Intel Xeon Scalable part targets compute-dense workloads where per-core throughput and memory bandwidth matter — virtualization hosts, analytics pipelines, and high-throughput transaction processing. The LGA 4189 socket ties it exclusively to the Ice Lake SP server generation, so compatibility is architecture-specific and must be verified against your chassis bill of materials before ordering.

Key Features

• 24 Cores / 48 Threads at 2.4 GHz Base: 48 concurrent hardware threads give hypervisors (VMware ESXi, Hyper-V, KVM) a deep pool of vCPU capacity without over-provisioning to the point of cache thrashing. The 2.4 GHz base is a guaranteed sustained clock under full thermal load — relevant if your workload profile is consistently all-core rather than bursty single-thread.
• 3.6 GHz Turbo Boost: Under lighter per-core loads, the processor scales up to 3.6 GHz, providing 50% higher clock speed for latency-sensitive tasks such as database queries or single-threaded analytics. The 8 high-priority cores running at a dedicated 2.6 GHz floor add a further layer of QoS differentiation within the die itself.
• Heterogeneous Core Architecture (8 High-Priority + 16 Efficiency Cores): The 6312U distinguishes between 8 high-priority cores (2.6 GHz floor) and 16 standard cores (2.3 GHz floor). Workload schedulers aware of this topology — including modern Linux kernels and Windows Server 2022 — can pin latency-critical threads to the high-priority cluster while bulk background tasks run on the efficiency cores, improving deterministic response times without manual CPU affinity tuning.
• 36 MB L3 Cache: At 1.5 MB per core, the cache-per-core ratio is adequate for most enterprise workloads. Database engines and in-memory caching layers (Redis, Memcached) will benefit from keeping hot data sets resident without hitting main memory — reducing effective memory latency on access-pattern-heavy workloads.
• 185W TDP — Power Budget Planning Required: At 185W, this processor draws roughly 40–60W more than lower-bin Xeon Gold parts in the same family. Verify the ST650 V2 power supply configuration and rack PDU circuit capacity before deploying in a multi-socket or fully populated chassis. The thermal design requires adequate chassis airflow provisioned for the 185W envelope — do not assume default fan profiles will compensate for a high-watt processor swap without validating thermal headroom.
• 10nm Ice Lake Fabrication (LGA 4189 Socket): Third-generation Xeon Scalable on Intel's 10nm node delivers improved instructions-per-clock versus prior Cascade Lake parts, meaningful for workloads that benefit from AVX-512 throughput improvements. The LGA 4189 socket is generation-specific — this processor does not drop into earlier LGA 3647 platforms.
• 64-bit Operating Mode, 48 Hardware Threads: Full x86-64 support with 48 addressable hardware threads ensures compatibility with current enterprise OS releases and hypervisor versions without requiring legacy mode accommodations.

Integration & Compatibility

The 4XG7A72927 is a platform-specific option for the Lenovo ThinkSystem ST650 V2 server. The LGA 4189 socket is shared across 3rd Generation Intel Xeon Scalable platforms, but BIOS and firmware validation is Lenovo-chassis-specific. Before deploying in a rack server environment, confirm the ST650 V2 UEFI firmware version supports the 6312U stepping, and verify that your existing memory population (DDR4 DIMMs, RDIMM vs LRDIMM) is compatible with the dual-socket memory controller topology this processor supports. In multi-processor ST650 V2 configurations, both sockets must be populated with identical processor models — mixing Xeon Gold bins on LGA 4189 is not supported.

For data center networking and compute planning purposes, note that the 24-core count affects licensing costs for per-core commercial software (Oracle Database, Microsoft SQL Server, VMware vSphere per-processor bundles) — factor socket and core counts into your total cost of ownership before finalizing the processor tier selection. If workload profiles are primarily single-threaded or lightly threaded, a lower-core-count, higher-clock variant in the Xeon Gold 6000 family may deliver better performance per dollar.

Frequently Asked Questions

Q: Is the Lenovo 4XG7A72927 compatible with the ThinkSystem ST650 V2?

A: Yes. The 4XG7A72927 is a Lenovo-qualified option specifically for the ThinkSystem ST650 V2 platform. Confirm the installed UEFI firmware version supports the 6312U processor stepping before installation.

Q: What socket does the 4XG7A72927 use?

A: The Intel Xeon Gold 6312U uses the LGA 4189 socket, which is specific to 3rd Generation Intel Xeon Scalable (Ice Lake SP) server platforms. It is not compatible with previous-generation LGA 3647 servers.

Q: What is the TDP of the 4XG7A72927?

A: The processor is rated at 185W TDP. Ensure the ST650 V2 power supply configuration, chassis cooling, and rack PDU circuit are provisioned to support this thermal envelope before installation.

Q: Can two 4XG7A72927 processors be installed in the same ST650 V2?

A: The ThinkSystem ST650 V2 supports dual-socket configurations. Both sockets must be populated with identical processor models — mixed processor configurations within the same chassis are not supported on LGA 4189 platforms.

Q: How does the 6312U's heterogeneous core design affect workload scheduling?

A: The 6312U has 8 high-priority cores (2.6 GHz guaranteed floor) and 16 standard cores (2.3 GHz). Modern OS schedulers (Linux kernel 5.13+, Windows Server 2022) can leverage this topology to prioritize latency-sensitive threads on the high-priority cluster while offloading background tasks to the standard cores.

Q: Does the 4XG7A72927 support AVX-512?

A: As a 3rd Generation Intel Xeon Scalable (Ice Lake SP) processor, the Gold 6312U supports AVX-512 instruction sets, which benefit HPC, AI inference, and data analytics workloads that can exploit 512-bit SIMD throughput.

Eden Phillips

The 4XG7A72927 is the 185W variant of the Xeon Gold 6312U — and that 185W ceiling is the first thing I tell engineers to account for when they're spec'ing this part into the ST650 V2. At 24 cores and a 3.6 GHz turbo ceiling, this processor sits in a performance tier well-suited to mid-to-high-density virtualization, but the power budget and per-core software licensing implications are real decisions, not footnotes.

Technical Highlights:

• 24C/48T at 2.4 GHz sustained: In all-core sustained workloads, the 2.4 GHz base is the clock you'll actually see — not the turbo figure. Benchmark your workload against that number, not the 3.6 GHz headline.
• 8 High-Priority Cores at 2.6 GHz floor: This is genuinely useful for mixed-use virtualization hosts where some VMs are latency-sensitive (trading, real-time analytics) and others are bulk processing. Pin your critical VMs to the priority cluster via CPU affinity or NUMA-aware scheduling.
• 36 MB L3 Cache across 24 cores: Cache pressure starts to show on workloads running more than ~20 active threads with large working sets. If you're running 40+ vCPUs with memory-intensive databases, watch L3 miss rates in your monitoring — a higher-cache-per-core processor may be a better fit.

Deployment Considerations:

• At 185W, dual-socket ST650 V2 configurations pull up to 370W in processor TDP alone — factor this into your rack power and cooling design, particularly in high-density rows.
• Per-core software licensing (Oracle, SQL Server, VMware) scales directly with core count. At 24 cores per socket, dual-socket licensing costs are a significant TCO factor — run the numbers before committing to this core tier versus a lower-count, higher-clock alternative in the Xeon Gold 6000 family.

This processor is the right call for ST650 V2 deployments running high-vCPU-density virtualization or parallel analytics workloads where 48 hardware threads and the priority-core topology provide measurable scheduling advantages — and where the 185W TDP fits within the data center's power and cooling envelope.