Lenovo 4XG7A63465 SR650 V2 Silver 4316 20C 150W 2.3GHZ

Lenovo 4XG7A63465 Intel Xeon Silver 4316 Processor Option for ThinkSystem SR650 V2

Overview

The Lenovo 4XG7A63465 is a factory-configured processor option kit delivering the 3rd Generation Intel Xeon Silver 4316 to the ThinkSystem SR650 V2 rack server. At 2.3 GHz base with a 3.4 GHz boost across 20 cores and 40 threads, this option targets mid-tier virtualization hosts, database servers, and compute nodes where you need substantial thread density without stepping up to the power and cost overhead of Gold or Platinum SKUs. The 150W TDP keeps the Silver 4316 manageable in standard 1U and 2U thermal envelopes, and the 30MB L3 cache provides meaningful working-set coverage for in-memory workloads running across those 40 threads.

Key Features

• 20 Cores / 40 Threads at 2.3 GHz Base, 3.4 GHz Boost: The headroom between base and boost (over 1GHz) means bursty workloads — VM spin-up, batch queries, compilation — get fast single-thread response without running all 20 cores at elevated frequency constantly. This matters on shared infrastructure where predictable base-clock performance sets your floor.
• 30MB L3 Cache: On a 20-core die, 30MB works out to 1.5MB per core — enough to hold hot dataset segments for OLTP-style workloads in-cache and reduce memory latency hits. In virtualized environments with 8–12 VMs per socket, this cache size prevents constant main-memory round-trips on lighter VM workloads.
• 150W TDP: The Silver 4316 fits within the standard 150W power envelope, keeping it compatible with single- and dual-socket SR650 V2 configurations without requiring power upgrades or specialized cooling. If your data center is power-constrained by rack, this keeps per-socket draw predictable and well within standard PDU allocations.
• 40 Threads via Hyper-Threading: Forty logical processors are exposed to the OS, which directly increases VM density on vSphere or Hyper-V hosts. A two-socket SR650 V2 fitted with a pair of these CPUs presents 80 logical cores to the hypervisor — meaningful for medium-density virtual desktop or containerized workload deployments.
• 10.4 GT/s System Bus Rate: The Ice Lake interconnect at 10.4 GT/s supports high-bandwidth memory channels, keeping the processor fed on memory-intensive workloads like analytics or in-memory databases. Starving the CPU of memory bandwidth is a common bottleneck on heavily threaded servers; the bus rate here aligns with the 3rd Gen Xeon Scalable platform's DDR4 memory subsystem.
• Up to 6TB Maximum Memory Support: The processor's memory controller supports up to 6TB of RAM per socket when using high-capacity LRDIMMs. For workloads where memory capacity is the primary constraint — large in-memory databases, SAP HANA, or dense VDI pools — this ceiling gives the platform room to grow well beyond typical DIMM configurations.
• 10nm Ice Lake Architecture: The 10nm fabrication process improves power efficiency per operation compared to prior Xeon generations, translating to better instructions-per-watt. In always-on data center applications, that efficiency compounds into meaningful energy cost savings at scale.
• LGA 4189 Socket (Socket P+): The LGA 4189 socket is specific to 3rd Gen Xeon Scalable platforms. Verify your SR650 V2 system board revision supports this processor before ordering — earlier SR650 V1 boards use a different socket and are not compatible.

Integration & Compatibility

The 4XG7A63465 is a Lenovo option kit designed and validated for the ThinkSystem SR650 V2. Lenovo option kits are factory-tested against specific system board revisions, UEFI firmware levels, and thermal management configurations for that platform. Using the Lenovo-branded option rather than a retail-boxed processor ensures compatibility with Lenovo's XClarity provisioning and management stack, and avoids the firmware version mismatches that can arise with non-validated components on managed server platforms.

The processor installs into the primary or secondary LGA 4189 socket on the SR650 V2 system board. In a single-socket configuration, the second socket remains available for a future scale-out addition of a matching processor. Operating in 64-bit mode with 40 logical processors, the Silver 4316 is compatible with all current 64-bit hypervisors and operating systems supporting the Intel Xeon Scalable platform, including VMware vSphere, Microsoft Hyper-V, Red Hat Enterprise Linux, and Windows Server.

For rack servers and compute infrastructure planning, this processor pairs with Lenovo SR650 V2 memory, storage, and networking options. If you are building or expanding a ThinkSystem rack server deployment, review the SR650 V2 product guide to confirm supported DIMM configurations alongside the Silver 4316 — memory channel population rules affect both maximum bandwidth and capacity.

Frequently Asked Questions

Q: Is the Lenovo 4XG7A63465 compatible with the ThinkSystem SR650 V1?

A: No. The 4XG7A63465 uses the LGA 4189 socket and is validated for the ThinkSystem SR650 V2. The SR650 V1 uses a different socket and platform and is not compatible with 3rd Generation Intel Xeon Scalable processors.

Q: What is the boost clock speed of the Intel Xeon Silver 4316 in this option kit?

A: The Intel Xeon Silver 4316 reaches a maximum turbo frequency of 3.4 GHz, up from the 2.3 GHz base clock. This boost applies to single- or lightly-loaded core scenarios, benefiting latency-sensitive workloads like database queries or interactive virtual desktop sessions.

Q: How much memory does this processor support?

A: The Intel Xeon Silver 4316 supports a maximum of 6TB of RAM per socket when using high-density LRDIMMs. Actual installed capacity depends on the SR650 V2 system board's DIMM slot count and the specific memory modules deployed.

Q: What is the thermal design power (TDP) for this processor?

A: The Intel Xeon Silver 4316 has a TDP of 150W. This fits within the standard thermal envelope of the SR650 V2 without requiring specialized cooling upgrades, making it suitable for standard data center rack deployments.

Q: Can this processor be used in a dual-socket SR650 V2 configuration?

A: Yes. The SR650 V2 supports dual LGA 4189 sockets. Populating both with the 4XG7A63465 delivers 40 physical cores and 80 logical processors to the system, doubling thread density and memory channel bandwidth for higher VM density or parallel compute workloads.

Q: What processor architecture and process node does the Silver 4316 use?

A: The Intel Xeon Silver 4316 is based on the Ice Lake microarchitecture, built on Intel's 10nm process. The 10nm node improves power efficiency per compute operation compared to the previous 14nm Cascade Lake generation, which is relevant for always-on server workloads where power costs accumulate over time.

Eden Phillips

The 4XG7A63465 delivers a 20-core, 40-thread Intel Xeon Silver 4316 at 150W TDP — a deliberate balance point for SR650 V2 deployments where you want meaningful core density without climbing into the Gold tier's power and cost bracket. The 3.4 GHz boost ceiling is the spec I'd focus on for mixed workloads: VMs that need responsive single-thread performance during spin-up or user sessions will hit that ceiling regularly, while background batch jobs run comfortably at base frequency.

Technical Highlights:

• 20 Cores / 40 Threads: On a dual-socket SR650 V2, two of these CPUs present 80 logical processors to vSphere or Hyper-V — enough for 40–60 light VMs without overcommitting the physical core count aggressively.
• 30MB L3 Cache at 1.5MB per Core: Keeps hot working sets in-cache for OLTP databases and active VM memory pages, reducing latency spikes that show up when the memory controller has to service every access from DDR4.
• 6TB Max Memory per Socket: The memory controller ceiling here is future-proof for SAP HANA and large in-memory analytics workloads — you won't hit a processor-side wall before you hit the system board's DIMM slot limit.

Deployment Considerations:

• Verify your SR650 V2 system board is at a firmware revision that supports LGA 4189 Ice Lake processors before installation — Lenovo's XClarity Administrator can confirm supported option compatibility against the chassis serial number prior to ordering.
• At 150W TDP, this processor is within standard SR650 V2 thermal design, but in a fully-populated dual-socket configuration with high-density DIMMs and multiple NVMe drives, confirm rack PDU capacity — total system draw under full load will be substantially higher than the CPU TDP alone suggests.

Best fit for mid-tier virtualization hosts and database compute nodes where the Silver tier's thread density covers the workload but the operational team wants to stay within predictable power envelopes — particularly in co-location environments billed by the amp.