Lenovo 4XG7A63455 SR650 V2 Silver 4314 16C 135W 2.4GHZ

Lenovo 4XG7A63455 Intel Xeon Silver 4314 16-Core Server Processor

Overview

The Lenovo 4XG7A63455 is the factory-new Intel Xeon Silver 4314 processor option kit for the ThinkSystem SR650 V2 rack server. Designed as a component-for-server/workstation deployment, it delivers 16 cores and 32 threads at a 2.4 GHz base clock — a configuration that covers mid-tier compute workloads (virtualization hosts, network video recorders, analytics inference servers) without the power overhead of a Platinum-class part. If you are speccing or expanding an SR650 V2 and need proven 3rd Generation Intel Xeon Scalable performance at a realistic TDP, this is the OPT kit to evaluate.

Key Features

• 16 Cores / 32 Threads (Ice Lake, 10nm): The Ice Lake microarchitecture on 10nm process delivers improved IPC over the prior Cascade Lake generation — meaning more work completed per clock cycle. For a Lenovo ThinkSystem server running concurrent VM guests or containerized workloads, the 32 hardware threads reduce context-switch overhead compared to an 8- or 12-core predecessor.
• 2.4 GHz Base / 3.4 GHz Boost: The 1.0 GHz spread between base and boost gives the processor headroom to accelerate single-threaded tasks (database queries, certificate operations, log parsing) without sustaining the thermal cost of a higher base-frequency part. On a properly cooled SR650 V2, sustained turbo is achievable on lightly-loaded core subsets.
• 24 MB L3 Cache: A 24 MB last-level cache reduces DRAM round-trips on working sets that fit within it — relevant for in-memory analytics pipelines and inference workloads where repeated access to model weights is the bottleneck.
• 135W TDP: At 135W, this part sits in the mid-tier power envelope for the Silver family. The SR650 V2's cooling subsystem is rated for it, but thermal headroom matters: verify your rack's per-U airflow allocation before adding a second socket. No cooler is included with this OPT kit — the server's standard heatsink must already be present or separately sourced.
• LGA 4189 Socket / 10.4 GT/s UPI: The LGA 4189 platform supports up to 8-channel DDR4 memory per socket, and the 10.4 GT/s Ultra Path Interconnect bus bandwidth keeps inter-socket latency in check on dual-socket SR650 V2 configurations. Memory bandwidth ceiling is a real constraint on analytics-heavy deployments — this bus rate gives you the throughput to feed all 16 cores without a fabric bottleneck.
• 64-Bit Operating Modes: Full 64-bit support is expected in this class, but worth confirming for edge cases — legacy 32-bit virtualized workloads can coexist without needing a separate host.
• 3rd Generation Intel Xeon Scalable Platform: Compatibility with the Whitley platform (LGA 4189) means this processor slots into the same ecosystem as higher-tier Gold and Platinum Xeon SKUs — you can mix socket utilization strategies across a fleet of SR650 V2 systems without changing platform.

Integration and Compatibility

The 4XG7A63455 is a Lenovo-qualified option kit for the ThinkSystem SR650 V2. Lenovo's OPT kit model means this processor has been validated against the SR650 V2's firmware, BIOS, and cooling subsystem — reducing the integration risk that comes with aftermarket CPU sourcing. The LGA 4189 socket is exclusive to the 3rd Gen Xeon Scalable platform, so this part is not cross-compatible with earlier SR650 (Gen 1/V1) or competing platforms. For video surveillance infrastructure teams deploying SR650 V2 nodes as central NVR hosts or analytics servers, pairing this processor with adequate RAM (check Lenovo's SR650 V2 memory configuration guide for validated DIMMs) and fast NVMe storage will determine real-world throughput more than the CPU spec alone. The 135W TDP also requires confirming your PDU and rack cooling budget — particularly relevant in dense deployments where multiple SR650 V2 units share a single rack. For network infrastructure planning alongside server builds, verify switch uplink capacity matches your expected server I/O load. This is a box-packaged, factory-new processor — not a pull or refurb unit.

Frequently Asked Questions

Q: Is the Lenovo 4XG7A63455 compatible with the ThinkSystem SR650 V2?

A: Yes. The 4XG7A63455 is a Lenovo OPT kit specifically qualified for the ThinkSystem SR650 V2. It uses the LGA 4189 socket and is part of the 3rd Generation Intel Xeon Scalable platform validated for that server.

Q: Does the 4XG7A63455 include a heatsink or cooler?

A: No. This processor kit does not include a cooler. The SR650 V2's standard heatsink must already be installed or sourced separately before deploying this CPU.

Q: What is the base and boost clock speed of the Xeon Silver 4314?

A: The processor runs at a 2.4 GHz base frequency with a boost frequency of up to 3.4 GHz under suitable thermal conditions.

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

A: The SR650 V2 supports dual-socket configurations using the LGA 4189 platform. Two Xeon Silver 4314 units can be installed together; the 10.4 GT/s UPI interconnect handles inter-socket communication. Verify Lenovo's official SR650 V2 configuration documentation for specific dual-socket population rules.

Q: What is the TDP of the Xeon Silver 4314 in the 4XG7A63455?

A: The Thermal Design Power is 135W. Confirm your rack cooling and PDU capacity accounts for this before installation, especially in multi-processor configurations.

Q: Is the 4XG7A63455 a new or refurbished unit?

A: It is factory-new, box-packaged — not a pull, refurb, or grey-market import.

Marty Allison

When customers are speccing the SR650 V2 for a mixed surveillance and analytics workload, the 4XG7A63455 with its Xeon Silver 4314 at 135W TDP is the part I recommend for deployments that need 16 real cores without committing to a Gold-tier power budget. The 10nm Ice Lake die gives you a genuine per-core IPC step up from the prior generation, which matters when you are running VMS decoding, motion analytics, and database operations concurrently on the same host.

Technical Highlights:

• 16C/32T at 135W: Competitive core density for the power draw — comparable Gold-tier parts at the same frequency run 150W+. For a 2U chassis with constrained airflow, that 15W delta can matter at scale.
• 3.4 GHz Boost: Single-threaded burst headroom is relevant for VMS applications that serialize certain decode or indexing operations. The 1.0 GHz spread between base and boost is wider than typical Silver predecessors.
• 24 MB L3 Cache: Large enough to hold working sets for in-memory analytics models on moderate channel counts — reduces DRAM pressure during peak inference cycles.

Deployment Considerations:

• No cooler is included in this OPT kit. If you are adding a second socket to an existing SR650 V2, confirm the heatsink for socket 2 is already present — the server will not POST safely without it seated correctly.
• LGA 4189 is a large, fragile socket. CPU installation on a live server chassis requires care — bent pins on the socket are a depot-level repair, not a field fix.

Best fit: a ThinkSystem SR650 V2 being configured as a centralized NVR or analytics server in a mid-size physical security deployment — where you need meaningful core count, predictable power draw, and a Lenovo-validated component rather than a spot-market processor of uncertain provenance.