Lenovo 4XG7A63578 SR650 V2 Gold 6342 24C 230W 2.8GHZ

Lenovo 4XG7A63578 Intel Xeon Gold 6342 24-Core Processor for ThinkSystem SR650 V2

Overview

The Lenovo 4XG7A63578 is a factory-configured Intel Xeon Gold 6342 processor option for the ThinkSystem SR650 V2 server platform — a 3rd Generation Intel Xeon Scalable (Ice Lake) chip purpose-built for compute-dense workloads in enterprise data centers, AI inference clusters, and virtualization environments. With 24 physical cores (48 threads), a 2.8 GHz base clock that turbos to 3.5 GHz, and a 230W TDP, this processor targets deployments where single-socket core density and memory bandwidth both matter. If you're scaling a Lenovo Lenovo server platform and evaluating processor configurations, the Gold 6342 sits in the mid-high tier of the Ice Lake Scalable lineup — enough headroom for heavy VM consolidation without crossing into the power and thermal territory of the higher-bin Gold 6300-series chips.

Key Features

• 24 Cores / 48 Threads (Ice Lake, 10nm): Intel's 10nm Ice Lake microarchitecture delivers meaningful IPC gains over prior-gen Cascade Lake at the same core count. For virtualized workloads on a rack server, 48 logical processors means more concurrent VMs without CPU contention — relevant if you're running dense ESXi or Hyper-V clusters.
• 2.8 GHz Base / 3.5 GHz Boost: The 700 MHz burst headroom is useful for latency-sensitive workloads (real-time analytics, single-threaded transactions) that can't always be parallelized. Base frequency holds at 2.8 GHz under sustained all-core load — set your thermal and power provisioning to the 230W TDP ceiling accordingly.
• 36 MB L3 Cache: 36 MB of on-die cache reduces memory fetch latency for working sets that fit — database buffer pools, inference model weights, and in-memory analytics all benefit when the hot dataset stays in L3 rather than bouncing to DRAM.
• Octa-Channel DDR4 Memory Support: Eight DDR4 memory channels per socket means the SR650 V2 can fully saturate high-bandwidth workloads — AI inference, HPC preprocessing, large-dataset analytics. Pair this with appropriate DIMM counts and speeds to actually realize the bandwidth; under-populating channels leaves performance on the table.
• LGA 4189 Socket, 3rd Gen Xeon Scalable: The LGA 4189 platform (Whitley) supports PCIe 4.0, which doubles lane bandwidth vs. PCIe 3.0. For GPU accelerators, NVMe storage, and high-bandwidth NICs in an enterprise network context, PCIe 4.0 connectivity at the platform level matters.
• 11.2 GT/s System Bus Rate: The higher UPI (Ultra Path Interconnect) speed supports tighter multi-socket latency when the SR650 V2 is configured with a second processor — relevant for two-socket builds where NUMA cross-socket traffic is a bottleneck.
• 64-bit Operating Mode: Full 64-bit instruction set support is table stakes for any modern enterprise OS or hypervisor, but worth confirming for any legacy workload migration where 32-bit process assumptions were baked in.
• 230W TDP: At 230W, this processor demands proper rack cooling provisioning. Verify the SR650 V2's configured fan and power supply capacity before deployment — Lenovo's thermal design for the SR650 V2 accommodates high-TDP processors, but under-specced cooling in a dense rack will throttle sustained performance.

Integration & Compatibility

The 4XG7A63578 is a Lenovo-specific option part for the ThinkSystem SR650 V2 server. It is factory-installed or field-installed per Lenovo's supported configuration matrix — confirm compatibility with Lenovo's server components ServerProven database before ordering for an existing system. The LGA 4189 socket is not backward-compatible with prior Lenovo platforms (SR650 Gen 1 uses a different board revision and BIOS). This processor supports DDR4-SDRAM in octa-channel configuration; LRDIMM and RDIMM DIMMs are supported at standard DDR4 speeds — consult the SR650 V2 memory population guide for validated configurations. OS support spans all major enterprise Linux distributions, Windows Server 2019/2022, and all current hypervisor platforms (VMware vSphere, Microsoft Hyper-V, Red Hat KVM). For AI and compute-intensive workloads, this processor pairs logically with PCIe 4.0 GPU accelerators and NVMe storage arrays in a two-socket SR650 V2 configuration.

Frequently Asked Questions

Q: What server platform is the Lenovo 4XG7A63578 designed for?

A: The 4XG7A63578 is a processor option part for the Lenovo ThinkSystem SR650 V2 server. It is not a standalone retail CPU — it is sourced and installed as a Lenovo-configured component for that specific platform.

Q: What is the base and boost clock speed of the Intel Xeon Gold 6342?

A: The processor runs at a 2.8 GHz base frequency with a maximum boost frequency of 3.5 GHz under supported turbo conditions.

Q: How many cores and threads does the 4XG7A63578 processor provide?

A: The Intel Xeon Gold 6342 provides 24 physical cores and 48 threads via Intel Hyper-Threading, based on the 3rd Generation Intel Xeon Scalable (Ice Lake) architecture at 10nm lithography.

Q: What is the TDP of this processor and what does that mean for rack planning?

A: The processor carries a 230W Thermal Design Power rating. This means your SR650 V2 configuration must include appropriate power supply capacity and cooling airflow — a fully populated dual-socket SR650 V2 with two 230W processors will draw over 460W in CPU TDP alone before accounting for DIMMs, drives, and NICs.

Q: What memory type and channel configuration does the Xeon Gold 6342 support?

A: The processor supports DDR4-SDRAM in an octa-channel configuration, enabling high aggregate memory bandwidth for workloads like database servers, in-memory analytics, and AI inference.

Q: Is the LGA 4189 socket compatible with earlier Lenovo SR650 (Gen 1) systems?

A: No. The LGA 4189 socket used by 3rd Gen Intel Xeon Scalable (Ice Lake) processors is not compatible with the LGA 3647 socket used in earlier Lenovo ThinkSystem servers. The SR650 V2 is the required platform for this processor option part.

James Everett

The 4XG7A63578 slots into the SR650 V2 as one of the more practical mid-high processor choices in the Ice Lake Scalable lineup — 24 cores at 2.8 GHz base with a 230W envelope is a deliberate engineering decision that trades the absolute core count of higher-bin Gold 6300-series parts for a frequency profile that sustains better under mixed latency-sensitive and throughput workloads. If you're sizing a VM cluster or deploying this in a two-socket SR650 V2 for a 48-core total build, the numbers hold up well.

Technical Highlights:

• 36 MB L3 Cache at 24 Cores: That works out to 1.5 MB per core — enough that database buffer pools and inference working sets for moderately sized models stay on-die rather than hitting DDR4 latency on every fetch cycle.
• 11.2 GT/s UPI Bus Rate: In a two-socket configuration, higher UPI bandwidth reduces the penalty for cross-NUMA memory access. If your workload is NUMA-aware and pinned correctly, this matters more than it looks on a spec sheet.
• 3.5 GHz Turbo with 230W TDP: The 700 MHz gap between base and boost is meaningful for bursty workloads — web application tiers, single-threaded build jobs, real-time analytics queries. But at 230W sustained all-core, your rack PDU and cooling path need to be provisioned for it. Don't assume a base SR650 V2 config covers this without checking the thermal and power bill of materials.

Deployment Considerations:

• Validate your SR650 V2 BIOS version against Lenovo's ServerProven matrix before installing — Ice Lake processors on Whitley platforms can require specific firmware levels for full feature support including PCIe 4.0 lane initialization.
• At 230W TDP, a dual-socket SR650 V2 configuration pulls significant CPU-only power. Factor in DIMM, NVMe, and GPU power draw when sizing the PDU circuit — under-provisioned power at the rack level will trigger server throttling before the processor ever reaches its thermal limit.

This processor configuration is the right call for SR650 V2 builds targeting VMware or Hyper-V consolidation ratios in the 40–80 VM-per-socket range, or for AI inference nodes where the octa-channel DDR4 memory bandwidth is the actual bottleneck — not GPU compute.