Lenovo 4XG7A72947 ST650 V2 8358P 32C 240W 2.6G/3.4GHZ

Lenovo 4XG7A72947 Intel Xeon Platinum 8358P 32-Core Processor Option for ThinkSystem ST650 V2

Overview

The Lenovo 4XG7A72947 is a factory-new Intel Xeon Platinum 8358P processor option kit engineered for the ThinkSystem ST650 V2 tower server. It installs a 3rd Generation Intel Xeon Scalable processor into the LGA 4189 socket, bringing 32 physical cores and 64 threads at a 2.6 GHz base clock with a 3.4 GHz boost — the right fit for dense virtualization workloads, video analytics platforms, or on-premises AI inference engines where single-socket core density is the binding constraint. At 240 W TDP, it represents the high end of the ST650 V2 thermal envelope; confirm your chassis cooling configuration before ordering. Sourced direct from the manufacturer supply chain — factory-new, no grey-market, no parallel imports.

Key Features

• 32 Cores / 64 Threads (Ice Lake, 10 nm): Intel's Ice Lake microarchitecture on a 10 nm process delivers meaningful IPC gains over the prior generation. For security workloads running multiple VM instances of a VMS (Milestone XProtect, Genetec Security Center, Avigilon Control Center), 32 cores let you assign dedicated vCPUs per recorder instance without contention — reducing frame-drop events during peak recording storms.
• 2.6 GHz Base / 3.4 GHz Boost: The 800 MHz boost headroom matters for latency-sensitive operations: license plate recognition inference, motion detection pre-filtering, and real-time H.265 transcoding all benefit from sustained boost clocks on lightly threaded tasks. Sustained all-core workloads (bulk re-encode, database indexing) run at the 2.6 GHz base — plan compute budgets accordingly.
• 48 MB L3 Cache: A 48 MB last-level cache reduces main-memory round trips on working sets that fit — relevant for analytics pipelines with large model weights kept in cache between inference calls. Smaller cache processors in the same socket family will show measurably higher latency on cold-inference tasks.
• 240 W TDP — High-Performance Thermal Class: This is not a low-power SKU. The 240 W envelope requires the ST650 V2 to be configured with the appropriate high-performance cooling option. Deploying this processor in a chassis provisioned for a lower-TDP SKU risks thermal throttling or unexpected shutdowns under sustained load — verify Lenovo's ST650 V2 cooling matrix before commissioning.
• Up to 6 TB DDR4 Memory Addressable: The 8358P's memory controller supports up to 6 TB of DDR4-SDRAM across the available DIMM slots in the ST650 V2 platform. For NVR workloads that keep large video index structures or analytics model weights in RAM, this ceiling is effectively unreachable in practice — but it confirms no artificial memory limits on this processor choice.
• 64-bit / 11.2 GT/s System Bus: The 11.2 GT/s UPI interconnect rate is the inter-socket fabric speed relevant to two-socket configurations. In a single-socket ST650 V2 build, the practical impact is NUMA locality — all memory access is local, which benefits latency-sensitive workloads like real-time video decoding.
• LGA 4189 Socket — Platform-Locked: The LGA 4189 socket is exclusive to 3rd Gen Intel Xeon Scalable Ice Lake platforms. This processor is not interchangeable with older LGA 3647 (Cascade Lake/Skylake) servers. Confirm your ST650 V2 board revision supports 3rd Gen Xeon Scalable before placing the order.

Integration and Compatibility

The 4XG7A72947 is a Lenovo-qualified option for the ThinkSystem ST650 V2 server. It occupies the primary processor socket (LGA 4189) and requires compatible DDR4-SDRAM DIMMs — the processor's memory controller supports DDR4 only; DDR5 is not applicable to this platform. For server processor upgrades in surveillance and physical security deployments, this CPU pairs naturally with high-capacity NVMe or SAS storage configurations and GPU accelerator cards for on-box analytics inference. Integrators building out network video recorder platforms on the ST650 V2 chassis should cross-reference Lenovo's ST650 V2 Lenovo server options compatibility matrix to validate memory, storage, and cooling pairings against this processor's TDP class. For organizations evaluating enterprise server platforms for VMS infrastructure, note that the Xeon Platinum 8000 series supports Intel vPro platform manageability features, enabling out-of-band management integrations common in IT-managed physical security infrastructure. Planning your network switching alongside server capacity is also worth addressing early — high-camera-count deployments can saturate 1GbE uplinks under simultaneous recording and playback loads.

Frequently Asked Questions

Q: Is the Lenovo 4XG7A72947 compatible with the ThinkSystem ST650 V2?

A: Yes. The 4XG7A72947 is a Lenovo-qualified processor option for the ThinkSystem ST650 V2, installing an Intel Xeon Platinum 8358P into the LGA 4189 primary processor socket on that platform.

Q: What socket does the 8358P use, and is it backward-compatible with older Lenovo servers?

A: The Intel Xeon Platinum 8358P uses the LGA 4189 socket, which is exclusive to 3rd Generation Intel Xeon Scalable (Ice Lake) platforms. It is not compatible with LGA 3647 servers (Cascade Lake or Skylake generation). Verify your target server board revision before ordering.

Q: What memory type does the 8358P support?

A: The processor supports DDR4-SDRAM. The integrated memory controller can address up to 6 TB of DDR4 across the available DIMM slots in the ST650 V2 platform. DDR5 is not supported on this platform generation.

Q: Does the 240 W TDP require special cooling in the ST650 V2?

A: Yes. At 240 W, this processor sits at the high end of the ST650 V2 thermal envelope. Lenovo specifies cooling configurations by TDP class — you must verify and order the appropriate high-performance cooling option for the ST650 V2 chassis to avoid thermal throttling under sustained load.

Q: How many cores and threads does the 4XG7A72947 provide?

A: The Intel Xeon Platinum 8358P delivers 32 physical cores and 64 threads, with a base clock of 2.6 GHz and a boost clock of 3.4 GHz, plus 48 MB of L3 cache.

Q: Is this processor suitable for running a VMS like Milestone or Genetec on the ST650 V2?

A: The 32-core / 64-thread configuration is well-suited for dense VMS deployments requiring multiple isolated VM instances or concurrent analytics processing. Validate your VMS vendor's server certification list and memory/storage requirements independently, as VMS certification is platform-level, not processor-level.

Ted Perry

When I'm spec'ing a server for a high-camera-count surveillance deployment, the processor TDP is one of the first things I check — and the 4XG7A72947's 240 W envelope tells you immediately this is a compute-first selection, not a power-efficiency play. The Intel Xeon Platinum 8358P's 32 cores at 2.6 GHz base give you real headroom for concurrent workloads: live decoding, analytics inference, and storage I/O management can all compete for resources simultaneously without the kind of thread starvation you see on lower-core-count parts under full recording load.

Technical Highlights:

• 32 Cores / 64 Threads at 2.6–3.4 GHz: Translates directly to capacity for parallel VMS worker threads — each camera channel's decode, motion filter, and write pipeline runs its own thread chain. At 64 threads, you have practical overhead for 200+ camera channels before hitting a compute ceiling, depending on codec and analytics load.
• 48 MB L3 Cache: Deep cache benefits analytics workloads where the same model weights are reused across rapid sequential inference calls. Keeps frequently accessed data off DDR4 bandwidth, which matters when you're running high-channel-count decoding and analytics simultaneously.
• DDR4 Support up to 6 TB: The 6 TB addressable memory ceiling is effectively unlimited for any realistic physical security platform — even large-scale Genetec or Milestone deployments with full metadata indexing in RAM will not approach this limit. The DDR4 type is worth noting: plan your DIMM procurement accordingly, since DDR5 DIMMs are not interchangeable.

Deployment Considerations:

• At 240 W TDP, this processor requires the ST650 V2 to be configured with Lenovo's high-performance cooling option. Installing this CPU in a chassis cooled for a sub-165 W part is a commissioning error that will surface as thermal throttle events under load — not always immediately visible, but degrading recording reliability over time.
• The LGA 4189 socket is generation-specific. If you're upgrading an existing Lenovo tower server fleet, confirm each chassis is an ST650 V2 with a 3rd Gen Xeon Scalable board revision — earlier ST650 units use LGA 3647 and are physically and electrically incompatible with this processor.

This option makes most sense for an on-premises VMS host running 150–300 camera channels with edge-analytics offload enabled — where you need dense core count in a single tower form factor rather than moving to a rack-based multi-node split. It's a deliberate compute investment, not a general-purpose server upgrade.