Lenovo 7XG7A05576 SR650 Xeon 4116 12C/85W/2.1GHZ

Lenovo 7XG7A05576 Xeon Silver 4116 12-Core Processor for ThinkSystem SR650

Overview

The Lenovo 7XG7A05576 is an Intel Xeon Silver 4116 processor option for the ThinkSystem SR650 rack server — a 1st Generation Intel Xeon Scalable part running 12 cores at a 2.1 GHz base clock with a 3 GHz boost ceiling. At 85W TDP, it sits in the mid-range of the Scalable family's power envelope, making it the right call when you need multi-threaded throughput for workloads like video analytics back-ends, VMS recording servers, or virtualized security infrastructure without pushing into the higher-watt Gold and Platinum tiers. If your SR650 is running a single-socket configuration and you're sizing for a 24/7 recording or analytics workload, the 7XG7A05576 delivers a sensible core-count-to-power tradeoff.

Key Features

• 12 Cores / 24 Threads (Skylake, 14nm): Twenty-four logical processors under a standard hypervisor means you can run a VMS engine, analytics processes, and OS overhead simultaneously without starving any one service. For Milestone XProtect or Genetec deployments, 24 threads gives the scheduler meaningful headroom at high camera counts.
• 2.1 GHz Base / 3.0 GHz Boost: The 900 MHz burst headroom matters on lightly-threaded decode tasks — a single-stream transcode or forensic export spins up to 3 GHz automatically. Sustained all-core recording workloads settle at the 2.1 GHz base, which is predictable for thermal planning.
• 85W TDP: Under the Xeon Scalable ladder, Silver-class parts keep the power draw manageable. At 85W, the SR650's cooling solution handles this processor without requiring additional airflow configuration changes — important in dense rack deployments where BTU budgets are already allocated.
• 16.5 MB L3 Cache: Each core gets roughly 1.4 MB of shared L3 backing, which keeps frequently-accessed metadata (codec tables, stream buffers) close to the execution units. This is meaningful for workloads that repeatedly access the same data structures, such as motion-detection pipelines scanning fixed ROIs.
• LGA 3647 / Socket P: This processor installs in the LGA 3647 socket on the SR650 system board. Verify your SR650's board revision and firmware level before ordering — Lenovo's compatibility matrix for the SR650 differentiates between board revisions that support 1st Gen Scalable vs. later variants.
• Up to 768 GB DDR4-2400 Support: The 4116 supports up to 768 GB of registered DDR4 at 2400 MHz across six memory channels. For high-camera-count NVR deployments where the VMS indexes large amounts of metadata in RAM, or for virtualized environments running multiple concurrent workloads, this headroom means memory won't be the bottleneck — the processor can address enough RAM to support even large-scale deployments.
• 64-Bit / Dual-Mode Operation: Standard 64-bit instruction support ensures compatibility with current server OS builds — RHEL, Windows Server, VMware ESXi — without any firmware workarounds. Nothing exotic here, which matters for enterprise change-management processes that require OS-certified configurations.
• 2.65 lb / Compact Dimensions (10.30 x 8.80 x 7.20 in): Shipped as a discrete processor kit at 2.65 lb, this is a component-level upgrade. The listed dimensions correspond to the packaging/heatsink assembly, not a standalone die — plan for standard SR650 tooling during installation.

Integration & Compatibility

The 7XG7A05576 is designed specifically for the Lenovo ThinkSystem SR650 platform using the LGA 3647 Socket P interface. It is a 1st Generation Intel Xeon Scalable processor, so confirm that your SR650's UEFI firmware supports 1st Gen Scalable parts — some later SR650 boards shipped from the factory with UEFI versions that prefer 2nd Gen (Cascade Lake) CPUs and require a downgrade or configuration change. Pair this processor with DDR4-2400 RDIMMs or LRDIMMs across the six memory channels for full bandwidth utilization; mixing speeds will drop all channels to the lowest installed DIMM speed.

For network video recorder builds or VMS server deployments, this processor pairs well with a dual-port 10GbE NIC for high-throughput camera ingestion and a dedicated PoE network switch for camera-side power. If you're planning a virtualized security stack, consult Lenovo's ServerProven list to verify hypervisor certification for your target OS version.

System integrators deploying this in a video management or access control back-end should account for thermal design: the 85W TDP requires that the SR650's internal fans are functioning correctly and the chassis airflow path is unobstructed. In high-ambient-temperature data closets, verify the SR650's operating temperature range against the room's cooling spec before commissioning.

Frequently Asked Questions

Q: What server platform is the Lenovo 7XG7A05576 designed for?

A: The 7XG7A05576 is a processor option designed for the Lenovo ThinkSystem SR650 rack server. It uses the LGA 3647 (Socket P) interface and is a 1st Generation Intel Xeon Scalable part.

Q: How many cores and threads does the Xeon Silver 4116 in the 7XG7A05576 provide?

A: The Xeon Silver 4116 delivers 12 physical cores and 24 threads via Intel Hyper-Threading, with a 2.1 GHz base frequency and a 3.0 GHz maximum boost frequency.

Q: What is the maximum memory this processor supports?

A: The Xeon Silver 4116 supports up to 768 GB of DDR4-2400 SDRAM across six memory channels. This applies when the SR650 is fully populated with compatible registered DIMMs.

Q: What is the TDP of this processor and does it require special cooling?

A: The Xeon Silver 4116 has an 85W Thermal Design Power rating. This is within the standard thermal envelope for the ThinkSystem SR650 chassis cooling solution and does not require additional airflow modifications under normal operating conditions.

Q: Is the 7XG7A05576 compatible with 2nd Generation Xeon Scalable (Cascade Lake) platforms?

A: No. This is a 1st Generation Intel Xeon Scalable (Skylake) processor and is designed for SR650 systems that support that generation. It is not cross-compatible with platforms built exclusively for 2nd Gen Cascade Lake processors without verifying Lenovo's firmware and hardware compatibility documentation.

Q: What is the processor cache size?

A: The Xeon Silver 4116 includes 16.5 MB of L3 cache shared across all 12 cores.

Jerry Tildsen

When I look at the 7XG7A05576, the spec that shapes how I'd deploy it is the 85W TDP paired with 24 threads — you get meaningful multi-threaded throughput without blowing your rack's power and cooling budget. For a ThinkSystem SR650 being built as a dedicated VMS back-end, that balance is exactly what you want: enough logical processors to run concurrent decode, analytics, and indexing pipelines without driving the chassis fans to full speed all shift.

Technical Highlights:

• 12C/24T at 85W: Compared to higher-core-count Gold-class parts that push 125–150W, the Silver 4116 lets you stay in a smaller power envelope while still running 24 logical processors — useful when the rack is in a security closet with limited BTU capacity.
• 3.0 GHz Boost: The 900 MHz jump from base to boost handles bursty single-threaded tasks (forensic export, clip packaging, codec negotiation) without you having to over-provision base clock speed for what is fundamentally a multi-threaded workload.
• 768 GB DDR4-2400 Ceiling: Six memory channels at DDR4-2400 gives the platform enough bandwidth for large in-memory VMS databases or heavily-virtualized security stacks — memory won't bottleneck camera-count scaling before you hit CPU limits.

Deployment Considerations:

• Confirm your SR650 board revision and UEFI version before installing — 1st Gen Scalable (Skylake) compatibility is board-specific on the SR650, and a mismatched firmware version will prevent POST.
• The 4116 is a single-processor SKU; if you're building a dual-socket SR650 for a high-camera-count deployment, you'll need two units and must verify that both are identical stepping to avoid asymmetric NUMA configuration issues.

This processor is well-matched to a single-socket ThinkSystem SR650 deployed as a dedicated Milestone XProtect or Genetec Security Center recording server in a mid-size enterprise environment — enough threads to handle 64–96 camera streams at standard bitrates without the power overhead of Gold-tier silicon.