Lenovo 4XG7A63446 SR650 V2 Gold 6326 16C 185W 2.9GHZ

Lenovo 4XG7A63446 Intel Xeon Gold 6326 16-Core Processor for ThinkSystem SR650 V2

Overview

The Lenovo 4XG7A63446 is a factory-tray Intel Xeon Gold 6326 processor engineered specifically for the ThinkSystem SR650 V2 server platform. Built on Intel's 3rd Generation Xeon Scalable architecture and fabricated on a 10nm process node, this 16-core, 32-thread processor delivers a 2.9GHz base clock with Turbo Boost up to 3.5GHz — a configuration well-suited to video management servers, AI-inference workloads, and enterprise security back-end infrastructure where per-core throughput and memory bandwidth both matter. If you're speccing out a multi-camera VMS node or an analytics processing server, the 4XG7A63446 is the processor that slots directly into an LGA 4189 socket on a supported SR650 V2 system board.

Key Features

• 16 Cores / 32 Threads at 2.9GHz Base: 16 physical cores with simultaneous multithreading gives the SR650 V2 32 execution threads — enough to run parallel VMS decode streams, analytics inference, and storage I/O concurrently without the thread starvation you'd see on an 8- or 10-core configuration. The 2.9GHz base holds steady under full load, not just under light workloads.
• 3.5GHz Turbo Boost: When workloads are bursty — motion-event spikes, forensic search queries, or batch export — the processor can push individual cores to 3.5GHz. That 600MHz headroom above base clock means single-threaded bottlenecks (license checks, codec initialization, database queries) resolve faster without requiring a higher TDP part.
• 24MB Intel Smart Cache: The 24MB last-level cache serves all 16 cores and is large enough to hold active video decode buffers for a meaningful number of streams in-cache, reducing main-memory round trips. On a VMS handling 64+ camera channels, cache efficiency translates directly into sustained decode throughput at lower latency.
• 185W Thermal Design Power: At 185W TDP, this is a full-performance Gold-class part — not a low-power variant. Verify that your SR650 V2 configuration includes an adequate cooling solution and that the chassis power supply can support dual-socket loading if you're pairing two of these processors. Power budget planning is not optional at this TDP.
• 10nm Ice Lake Architecture: The 10nm fabrication process (Ice Lake-SP generation) brings improved instructions-per-clock over the prior 14nm Cascade Lake parts. For workloads that benefit from AVX-512 instruction density — deep learning inference, video transcoding acceleration — the IPC gain is measurable compared to prior-gen Xeon Gold equivalents.
• LGA 4189 Socket, 11.2 GT/s System Bus: The LGA 4189 socket and 11.2 GT/s UPI interconnect are specific to the Whitley platform (Ice Lake-SP). This processor will not install in Purley-platform servers (LGA 3647). The 11.2 GT/s bus rate supports eight DDR4 memory channels per socket — critical for memory-bandwidth-intensive workloads like real-time video analytics.
• 64-bit Operating Modes, Tray Package: Ships as a tray-packaged OEM component — no retail heatsink included. Tray format is the correct procurement unit for system integrators populating server boards directly; heatsink and thermal interface material must be sourced separately or confirmed as included in the SR650 V2 system kit.

Integration & Compatibility

The 4XG7A63446 is a Lenovo option part validated for the ThinkSystem SR650 V2. Lenovo option parts go through platform-level compatibility testing against SR650 V2 firmware and system board revisions — reducing the risk of BIOS incompatibility or memory training failures that can affect non-validated third-party processor kits. For Lenovo ThinkSystem servers deployed as network video recorder back-end infrastructure or AI-analytics nodes, using validated option parts is the straightforward path to a supported configuration. If you're integrating this processor into a rack server deployment alongside network switching infrastructure, confirm your SR650 V2 system board revision and UEFI firmware level against Lenovo's compatibility matrix before installation. The Xeon Gold 6326 supports up to 6TB of DDR4 memory per socket across eight memory channels — plan memory population to match channel count for maximum bandwidth, particularly on VMS or analytics deployments where memory throughput is a sustained bottleneck rather than a peak one.

Frequently Asked Questions

Q: What server platform is the Lenovo 4XG7A63446 validated for?

A: The 4XG7A63446 is a Lenovo option part validated for the ThinkSystem SR650 V2 server. It uses the LGA 4189 socket (Whitley platform) and is not compatible with prior-generation Purley-platform servers that use LGA 3647.

Q: Does this processor include a heatsink?

A: No. The 4XG7A63446 ships in tray format — an OEM component without a retail heatsink or thermal interface material. A compatible heatsink must be sourced separately or confirmed as part of your SR650 V2 system kit.

Q: What is the TDP of the Intel Xeon Gold 6326 in this kit?

A: The Thermal Design Power is 185W. This is a full-performance Gold-class part; ensure the SR650 V2 chassis power supply and cooling configuration are rated for this TDP, especially in a dual-socket build.

Q: How many cores and threads does the 4XG7A63446 provide?

A: 16 physical cores and 32 threads via Intel Hyper-Threading. Base clock is 2.9GHz with Turbo Boost up to 3.5GHz.

Q: What memory configuration does the Xeon Gold 6326 support?

A: The processor supports eight DDR4 memory channels per socket with a maximum memory capacity of 6TB per socket, enabling high-bandwidth configurations for VMS and analytics workloads.

James Everett

The 4XG7A63446 is one of the more practical Xeon Gold choices for SR650 V2 builds in physical security back-end infrastructure — 16 cores at 2.9GHz base with a 185W TDP puts it squarely in the performance tier without stepping up to the higher core-count parts that come with significantly larger power and cooling requirements. If you're provisioning a VMS appliance or an edge analytics server and need a validated Lenovo option part, this is the processor to spec.

Technical Highlights:

• 16C/32T at 2.9–3.5GHz: The base-to-boost spread of 600MHz means sustained multi-stream decode holds at 2.9GHz while short-burst workloads (search, export, event processing) can accelerate to 3.5GHz on active cores — useful headroom on a VMS node that sees variable load throughout the day.
• 24MB Smart Cache: Large enough to keep active decode buffers for dozens of concurrent streams in-cache. On a 64-channel VMS server, the difference between cache hits and main-memory fetches shows up directly in stream latency and CPU utilization figures.
• 10nm Ice Lake-SP Architecture: Improved IPC over prior 14nm Cascade Lake Gold parts means you get more decode throughput per watt compared to an equivalent-clock prior-gen processor — relevant when the SR650 V2 is sharing power budget with storage and NIC expansion cards.

Deployment Considerations:

• Tray packaging means no heatsink ships with the processor — confirm your SR650 V2 system kit includes the correct heatsink for a 185W part before the installation date. Lenovo's standard 1U heatsinks are not rated for 185W; the high-performance heatsink option is required.
• At 185W TDP, dual-socket configurations draw up to 370W from processor power delivery alone. Size your PDU and UPS capacity accordingly — this is a common oversight on high-density rack deployments where the server was originally specced single-socket.

Best deployment fit: a ThinkSystem SR650 V2 configured as a dedicated VMS server or AI-inference node in a mid-to-large enterprise physical security deployment — 64 to 128 camera channels with on-box analytics, where the 16-core count and 8-channel DDR4 memory bandwidth can be fully utilized.