Lenovo 4XG7A91462 SR650 V3 Gold 6544Y 16C 270W 3.6GHZ

Lenovo 4XG7A91462 Intel Xeon Gold 6544Y 16-Core Processor for SR650 V3

Overview

The Lenovo 4XG7A91462 is a factory-configured Intel Xeon Gold 6544Y processor option for the ThinkSystem SR650 V3 server. Rated at 3.6 GHz base with a 270W TDP, this 5th Gen Intel Xeon Scalable processor brings 16 cores and 32 threads to compute-intensive server workloads — including multi-stream video analytics, AI inference pipelines, and storage-heavy NVR infrastructure. If you're speccing out an SR650 V3 for a video management or datacenter workload and need a processor that balances core count with high single-thread boost, the 6544Y is a direct candidate.

Key Features

• 16 Cores / 32 Threads: Running 16 physical cores and 32 logical threads, this processor can sustain high parallelism — useful when a VMS or AI analytics platform spins up multiple concurrent decode/analysis threads per camera stream. More threads mean less queue saturation when channel counts climb past 64.
• 3.6 GHz Base / 4.1 GHz Boost Frequency: The 4.1 GHz turbo boost is relevant for single-threaded tasks like database transactions or API gateway logic that can't parallelize. The 3.6 GHz base keeps sustained multi-threaded throughput predictable under continuous load — important for 24/7 recording servers that don't get idle cycles.
• Performance Core Tiering — 4 High-Priority Cores at 3.7 GHz: The 6544Y uses Intel's hybrid scheduling with 4 high-priority cores running at 3.7 GHz and 12 efficiency cores at 3.5 GHz. The OS and application scheduler can direct latency-sensitive threads to high-priority cores while offloading background tasks to efficiency cores — an advantage for mixed VMS + analytics workloads where live playback response time matters.
• 45 MB Cache: 45 MB of L3 cache reduces memory latency for large working sets — relevant when the server is simultaneously indexing forensic search metadata and delivering live streams. More cache means fewer stalls waiting on DDR5 fetches.
• 20 GT/s Intel UPI Speed: At 20 GT/s, the Ultra Path Interconnect sustains low-latency cache coherency in multi-socket SR650 V3 configurations. If you're building a dual-socket SR650 V3 for maximum throughput, UPI speed determines how fast the two processors share data — 20 GT/s is the current ceiling for this generation.
• 270W TDP: A 270W thermal envelope is in the higher range for this socket class. That's not a problem if your SR650 V3 is configured with appropriate cooling and power supplies — but it's a number to carry into your rack power budget conversation before ordering. Each populated processor slot draws up to 270W under sustained load.
• LGA 4677 (Socket E) — 5th Gen Xeon Scalable Platform: The LGA 4677 socket is the current-generation SR650 V3 platform socket. This processor is not backward-compatible with earlier SR650 generations. Verify your SR650 V3 chassis and UEFI firmware version supports 5th Gen processors before deployment.
• 64-Bit Operation: Full 64-bit instruction support is expected at this tier but worth confirming for compliance-sensitive deployments (FIPS, FedRAMP) that require explicit documentation of processor architecture.

Integration and Compatibility

The 4XG7A91462 is a Lenovo-qualified processor option for the ThinkSystem SR650 V3. It installs into Socket E (LGA 4677) on the SR650 V3 motherboard. Because Lenovo validates processor options against specific firmware and UEFI versions, always cross-reference the current SR650 V3 Hardware Maintenance Manual or Lenovo ServerProven compatibility matrix before ordering. The SR650 V3 supports up to two processors — pairing two 6544Y units doubles core count to 32 physical cores and 64 threads, which is a common config for high-channel-count enterprise server deployments running network video recorder software alongside AI analytics. For workloads where per-core performance is more critical than aggregate core count, evaluate whether a lower-core, higher-frequency option in the Lenovo server processor lineup is a better fit for your VMS software's licensing model. Many VMS platforms license per physical core or per socket — a 16-core processor at $X can carry a meaningful per-core software cost on top of hardware. Factor that into the total processor selection decision.

Frequently Asked Questions

Q: Is the 4XG7A91462 compatible with the ThinkSystem SR650 V2?

A: No. The Xeon Gold 6544Y uses the LGA 4677 (Socket E) interface, which is exclusive to 5th Gen Xeon Scalable platforms. The SR650 V2 uses an earlier socket and is not compatible with this processor.

Q: What is the TDP of the Xeon Gold 6544Y in the 4XG7A91462?

A: The processor has a Thermal Design Power (TDP) of 270W. This should be factored into your SR650 V3 rack power budget, especially in dual-socket configurations where both sockets draw up to 270W each under sustained load.

Q: How many cores and threads does the 4XG7A91462 processor provide?

A: The Intel Xeon Gold 6544Y provides 16 physical cores and 32 threads. It includes 4 high-priority cores running at up to 3.7 GHz and 12 lower-priority cores at 3.5 GHz base, with a maximum turbo frequency of 4.1 GHz.

Q: Can I install two 4XG7A91462 processors in one SR650 V3?

A: The ThinkSystem SR650 V3 supports dual-socket configurations. Installing two Xeon Gold 6544Y processors yields 32 physical cores and 64 threads, connected via 20 GT/s UPI for cache-coherent inter-processor communication.

Q: What is the cache size on the Xeon Gold 6544Y?

A: The processor includes 45 MB of L3 cache, which helps reduce memory access latency for large working sets common in multi-stream video analytics and database-backed VMS environments.

Jerry Tildsen

The 4XG7A91462 puts the Intel Xeon Gold 6544Y into the SR650 V3 — and the spec that immediately shapes how I'd deploy it is the 270W TDP paired with the hybrid core topology. You're not buying a pure throughput chip here; you're buying a chip with four high-priority cores that can turbo to 4.1 GHz when latency-sensitive work hits, backed by twelve efficiency cores handling the steady background load. That combination maps well to VMS platforms that mix real-time live view (latency-sensitive) with background recording and indexing (throughput-bound).

Technical Highlights:

• 4.1 GHz Turbo / 3.6 GHz Base: The 500 MHz spread between base and boost gives the scheduler room to accelerate latency-critical threads without burning sustained power budget — 270W is the ceiling, not the floor under mixed workloads.
• 45 MB L3 Cache: At 45 MB, there's enough cache to hold working sets for dozens of concurrent decode pipelines without repeated main-memory fetches — a real factor when the box is processing 100+ camera streams simultaneously.
• 20 GT/s UPI: In a dual-socket SR650 V3, both processors share NVMe and PCIe resources across the UPI fabric. At 20 GT/s, inter-socket latency stays low enough that GPU-accelerated analytics cards in one socket's PCIe lanes remain accessible to threads running on the other socket.

Deployment Considerations:

• The 270W TDP is a hard number for rack PDU planning in dense configurations. A dual-socket SR650 V3 can draw over 540W from processors alone before storage, memory, and GPU power are added — confirm PDU circuit amperage before racking.
• The LGA 4677 socket is generation-locked to 5th Gen Xeon Scalable. If your facility runs a mixed fleet of SR650 V2 and V3 chassis, this processor does not transfer between generations — order carefully against the correct chassis model.

This processor is a strong fit for a dedicated high-channel VMS server or AI video analytics node where the workload mixes sustained multi-threaded encode/decode with occasional burst latency-sensitive operations — a 64-channel NVR with on-box object detection being the canonical example.