Lenovo 4XG7A63397 SR630 V2 Gold 5318S 24C 165W 2.1GHZ

Lenovo 4XG7A63397 Xeon Gold 5318S 24-Core Processor for ThinkSystem SR630 V2

Overview

The Lenovo 4XG7A63397 is a factory-configured processor option delivering the Intel Xeon Gold 5318S — a 24-core, 48-thread 3rd Generation Intel Xeon Scalable CPU — into the ThinkSystem SR630 V2 platform. At 2.1 GHz base with a 3.4 GHz boost, the 5318S is engineered for compute-dense enterprise workloads where parallel thread execution and memory bandwidth matter more than single-core peak: think video analytics servers, multi-stream VMS back-ends, AI inference nodes, and virtualization hosts running dozens of concurrent workloads. If your deployment has moved past the point where a standard 8- or 16-core option keeps up with processing demand, this is where you step up.

For integrators building out server infrastructure on the Lenovo ThinkSystem platform, the SR630 V2 with the 5318S delivers a meaningful performance tier within the Lenovo data center line without jumping to the top-end Platinum-class SKUs that carry a significantly higher BOM cost.

Key Features

• 24 Cores / 48 Threads (Intel Xeon Gold 5318S): 48 hardware threads mean the OS and hypervisor have more scheduling headroom — critical when a single server is simultaneously running VMS recording processes, analytics engines, and management services. You won't be CPU-bottlenecked waiting on thread contention at moderate channel counts.
• 2.1 GHz Base / 3.4 GHz Turbo Boost: The 1.3 GHz headroom between base and boost frequency gives the scheduler room to sprint on latency-sensitive tasks (alarm processing, live stream requests) while sustaining the base clock across all 24 cores under sustained load. That spread matters on mixed-workload servers that handle both background archiving and real-time event processing simultaneously.
• Hybrid Core Architecture — 8 High-Priority Cores at 2.3 GHz, 16 Efficiency Cores at 1.8 GHz: The 5318S splits its 24 cores into two tiers: 8 high-priority cores running at 2.3 GHz for latency-sensitive threads, and 16 lower-priority cores at 1.8 GHz for background work. This matters for VMS deployments where live-view decoding and alarm response need to stay snappy while bulk recording I/O runs in the background — the scheduler can pack background tasks onto efficiency cores without starving foreground threads.
• 36 MB L3 Cache: A larger L3 cache reduces main-memory fetches on workloads with predictable access patterns — database queries, video index lookups, and analytics model inference all benefit from keeping hot data on-die rather than round-tripping to DRAM, which adds latency.
• 48 Processing Threads via Hyper-Threading: Hyper-Threading doubles the logical core count visible to the OS from 24 to 48. For multi-threaded applications like transcoding pipelines, concurrent analytics, and virtualized workloads, this directly increases throughput without requiring a second physical CPU socket.
• 11.2 GT/s System Bus: The UPI (Ultra Path Interconnect) rate of 11.2 GT/s governs how fast this CPU communicates with I/O controllers and, in a dual-socket configuration, the second processor. Higher bus throughput reduces the bottleneck between the CPU and storage controllers, NICs, and GPU accelerators — all relevant in a high-channel NVR or AI inference node.
• 10 nm Intel Lithography (Ice Lake): The 10 nm process node delivers improved instructions-per-clock efficiency compared to earlier 14 nm Xeon generations, translating to better performance-per-watt at a given clock speed. At a 165W TDP, that efficiency matters for rack power budgeting in dense deployments.
• 165W TDP: At 165W thermal design power, this processor sits in the middle of the Xeon Gold power envelope. Plan your chassis cooling and rack PDU budget accordingly — the SR630 V2 is rated to handle it, but dual-socket configurations will approach 330W from CPUs alone before RAM, storage, and NICs are factored in.
• LGA 4189 Socket (Ice Lake SP): The LGA 4189 socket is specific to 3rd Gen Xeon Scalable (Ice Lake-SP) platforms. It is not backward-compatible with Cascade Lake or forward-compatible with Sapphire Rapids. Confirm your SR630 V2 is configured for this socket class before ordering.
• 64-bit Operating Mode: Full 64-bit execution support means no addressing constraints — all modern enterprise OS and hypervisor builds (VMware ESXi, Windows Server, RHEL, Ubuntu Server) run natively without compatibility shims.

Integration & Compatibility

The 4XG7A63397 is a Lenovo-validated processor option for the ThinkSystem SR630 V2 server platform. Lenovo's system-level validation process means this CPU has been tested against the SR630 V2 firmware, memory configurations, and thermal envelope — reducing the risk of instability that can occur when mixing non-validated components on a production server. For network video recorder deployments or enterprise security infrastructure running on the SR630 V2, using a Lenovo-validated processor option is the straightforward path to a supported configuration.

Integrators considering a rack server build for a large-scale VMS deployment — particularly those running video management software with AI-based analytics — should evaluate whether the 24-core 5318S provides enough headroom for their projected channel count and analytics load, or whether a higher core-count Platinum-tier option is warranted. The 5318S is well-positioned for mid-to-large deployments that need more than a basic 8- or 16-core option but don't require the full Platinum stack.

Frequently Asked Questions

Q: What server platform is the Lenovo 4XG7A63397 designed for?

A: The 4XG7A63397 is a processor option validated for the Lenovo ThinkSystem SR630 V2 server platform. It installs the Intel Xeon Gold 5318S (24-core, LGA 4189 socket) into the SR630 V2 chassis.

Q: What is the base and boost clock speed of the Xeon Gold 5318S in this configuration?

A: The processor runs at a 2.1 GHz base frequency with a turbo boost up to 3.4 GHz, depending on workload and thermal conditions.

Q: How many cores and threads does this processor provide?

A: The Intel Xeon Gold 5318S delivers 24 physical cores and 48 logical threads via Intel Hyper-Threading. The cores are split into 8 high-priority cores at 2.3 GHz and 16 efficiency cores at 1.8 GHz.

Q: What is the TDP of this processor, and does it affect rack power planning?

A: The Xeon Gold 5318S has a 165W TDP. In a single-socket SR630 V2 configuration, this is the CPU's contribution to the server's total power draw. Dual-socket builds should budget approximately 330W for CPUs alone before accounting for memory, storage, and PCIe cards.

Q: Is the LGA 4189 socket compatible with earlier Xeon Scalable generations?

A: No. LGA 4189 is specific to 3rd Generation Intel Xeon Scalable (Ice Lake-SP) processors. It is not compatible with 2nd Gen Cascade Lake (LGA 3647) or the later 4th Gen Sapphire Rapids platforms.

Q: What is the L3 cache size on this processor?

A: The Intel Xeon Gold 5318S includes 36 MB of L3 cache, which helps reduce main-memory latency on workloads with frequently accessed data sets such as database queries, video indexing, and analytics inference.

Jerry Tildsen

When I spec a VMS server for a 200+ channel deployment with AI analytics running concurrently, the processor selection is where I spend the most time — and the Lenovo 4XG7A63397 with its Xeon Gold 5318S at 24 cores and 48 threads is positioned right at the inflection point where most mid-to-large enterprise security deployments start to stress single-socket 16-core configurations. The 3.4 GHz turbo gives the platform enough burst headroom for real-time alarm processing without overprovisioning to a Platinum SKU.

Technical Highlights:

• Hybrid Core Topology (8 HP at 2.3 GHz / 16 LP at 1.8 GHz): In VMS workloads, foreground tasks like live decode and alarm dispatch get the 2.3 GHz high-priority cores while recording I/O and background indexing run on the efficiency cluster — the scheduler naturally separates latency-sensitive from bulk work without manual affinity pinning.
• 36 MB L3 Cache: For analytics inference workloads that repeatedly access the same model weights or frame buffers, 36 MB of on-die cache meaningfully reduces DRAM round-trips — you'll see this show up as lower per-channel CPU utilization in analytics-heavy configurations versus earlier-generation Xeons with smaller caches.
• 11.2 GT/s UPI Bus: If the SR630 V2 is configured dual-socket, the 11.2 GT/s interconnect rate keeps NUMA latency manageable. Single-socket builds still benefit from the higher bus throughput when pulling data from PCIe NVMe storage or 25GbE NICs under sustained multi-stream load.

Deployment Considerations:

• Verify the SR630 V2 chassis firmware supports 3rd Gen Xeon Scalable before installation — Ice Lake-SP requires a UEFI update on units originally shipped with Cascade Lake. Running a mismatched firmware version can prevent POST or limit CPU feature exposure.
• At 165W TDP, the SR630 V2's cooling system handles this processor within spec, but ambient temperature and airflow path matter — a rack with poor front-to-back airflow and high ambient temperature will push fan speeds up significantly, which is worth knowing if this server is going into a closet or non-data-center space.

This is the right option for a physical security operations center server running a enterprise VMS platform at 150–300 camera channels with analytics enabled — enough cores to handle the concurrent thread load without the Platinum price premium that most security deployments don't need.