Lenovo 4XG7A72945 ST650 V2 Gold 6314U 32C 205W 2.3GHZ

Lenovo 4XG7A72945 Intel Xeon Gold 6314U 32-Core Server Processor

Overview

The Lenovo 4XG7A72945 is a 3rd Generation Intel Xeon Gold 6314U processor option for the ThinkSystem ST650 V2 server, delivering 32 cores across 64 threads at a 2.3 GHz base frequency with a 205W TDP. Designed for dense compute workloads where thread count and sustained throughput matter more than single-core peak performance, this processor fits squarely into enterprise data center, virtualization, and high-throughput application server builds. If you're specifying a ST650 V2 and need workload-balanced compute across a wide core count without stepping into the higher-wattage tier, the 4XG7A72945 is a practical configuration to evaluate.

Key Features

• 32 Cores / 64 Threads: With 32 physical cores and 64 logical threads via Hyper-Threading, this processor handles heavy multi-tenant virtualization and parallel application workloads without needing to scale to a two-socket configuration. More VMs per host means lower per-VM infrastructure cost when the workload is CPU-bound.
• 2.3 GHz Base / 3.4 GHz Boost Frequency: The 2.3 GHz base keeps thermal headroom available for the boost clock, which reaches 3.4 GHz under sustained single- or few-thread loads. That 1.1 GHz headroom is meaningful for applications that mix bursty single-threaded tasks with long-running parallel jobs.
• Asymmetric Core Architecture — 12 High-Priority + 20 Standard Cores: The 6314U uses a hybrid priority core layout: 12 cores run at 2.5 GHz (high-priority tier) and 20 cores at 2.1 GHz. Workload schedulers and OS thread managers that are core-priority-aware can route latency-sensitive tasks to the faster cores automatically, improving responsiveness on mixed workloads without manual thread affinity tuning.
• 48 MB Last-Level Cache: The 48 MB LLC is sufficient to keep working data sets for database engines, VMS recording indexes, or in-memory analytics resident near compute. Reduced cache miss rates translate directly to sustained throughput — especially relevant on recording-heavy or query-intensive server roles.
• 205W TDP — Power Budget Planning: At 205W, this is a full-power server CPU. Confirm your ST650 V2 chassis power supply configuration supports dual-processor operation at this TDP before committing. Undersized PSU configurations in dual-socket builds with high-draw DIMMs and NVMe storage are a common field mistake.
• 10nm Lithography (Intel Ice Lake SP): The 10nm Intel process node delivers improved instructions-per-clock over prior-gen 14nm Xeon parts at comparable frequencies. For the same workload, expect better efficiency per watt compared to Cascade Lake configurations — relevant when calculating cooling and power draw in dense racks.
• LGA 4189 Socket — 3rd Gen Xeon Scalable Platform: The LGA 4189 socket supports PCIe 4.0 and up to 8 memory channels per socket, which doubles available memory bandwidth compared to LGA 3647 Cascade Lake platforms. This matters for memory-bandwidth-sensitive workloads like in-memory databases, video analytics pipelines, or high-frame-rate multi-stream NVR processing.
• 64-bit Operating Mode: Native 64-bit execution with full support for modern server operating systems and hypervisors. No legacy mode or platform constraints to account for when deploying current-generation OS or hypervisor stacks.

Integration & Compatibility

The 4XG7A72945 is a factory-configured processor option for the Lenovo ThinkSystem ST650 V2 server platform. The LGA 4189 socket is exclusive to 3rd Gen Intel Xeon Scalable (Ice Lake SP) processors — this part is not cross-compatible with Cascade Lake (LGA 3647) or Sapphire Rapids (LGA 4677) platforms. Confirm your ST650 V2 server's current processor population and motherboard revision before ordering a second processor for dual-socket builds. Lenovo's compatibility matrix for the ST650 V2 should be consulted for validated DIMM configurations at this TDP tier, as memory speed and population rules vary by processor SKU.

Frequently Asked Questions

Q: What server platform is the Lenovo 4XG7A72945 compatible with?

A: The 4XG7A72945 is a processor option validated for the Lenovo ThinkSystem ST650 V2 server. It uses the LGA 4189 socket, which is specific to 3rd Generation Intel Xeon Scalable (Ice Lake SP) processors.

Q: What is the TDP of the Xeon Gold 6314U in this configuration?

A: The Intel Xeon Gold 6314U has a 205W TDP. Confirm that your ST650 V2 power supply and cooling configuration supports this thermal envelope, particularly in dual-socket deployments.

Q: How many cores and threads does the 6314U provide?

A: The 6314U provides 32 physical cores and 64 logical threads via Hyper-Threading. It uses an asymmetric core layout: 12 high-priority cores at 2.5 GHz and 20 standard cores at 2.1 GHz, with a base frequency of 2.3 GHz and boost up to 3.4 GHz.

Q: Is the LGA 4189 socket backward compatible with 2nd Gen Xeon Scalable processors?

A: No. LGA 4189 is exclusive to 3rd Gen Intel Xeon Scalable (Ice Lake SP) processors. It is not compatible with 2nd Gen (Cascade Lake, LGA 3647) or 4th Gen (Sapphire Rapids, LGA 4677) processors.

Q: What is the cache size on the Xeon Gold 6314U?

A: The processor includes 48 MB of last-level cache, which supports sustained throughput on data-intensive server workloads including database engines, virtualization stacks, and multi-stream recording applications.

Q: Can this processor be used in a dual-socket ST650 V2 configuration?

A: The ST650 V2 supports dual-socket operation. However, at 205W TDP per processor, dual-socket builds require careful validation of PSU capacity and DIMM population rules. Consult Lenovo's ST650 V2 compatibility documentation before finalizing a dual-socket build with this processor SKU.

Marty Allison

The 4XG7A72945 packages the Intel Xeon Gold 6314U — 32 cores at 2.3 GHz base, 205W TDP — into Lenovo's ThinkSystem ST650 V2 platform. That asymmetric core layout (12 high-priority at 2.5 GHz, 20 standard at 2.1 GHz) is something integrators often overlook when comparing raw core counts between Xeon SKUs at similar price points. For mixed workloads, the scheduler behavior differences are real and worth testing against your specific application profile before committing to a configuration.

Technical Highlights:

• 32 Cores / 64 Threads at 205W: This gives you a high thread density within a single socket before you need to go dual-socket — relevant when rack space, licensing, or interconnect costs make two-socket builds expensive.
• 3.4 GHz Boost Clock: The 1.1 GHz spread between base (2.3 GHz) and boost (3.4 GHz) means latency-sensitive tasks get meaningful headroom without requiring a higher-tier SKU. Useful in VMS and analytics server builds where live decoding threads compete with background recording.
• 48 MB LLC: Large last-level cache reduces memory round-trips for working data sets — directly benefits in-memory database engines, video analytics inference pipelines, and recording index operations that run continuously in the background.

Deployment Considerations:

• At 205W, thermal and power planning for the ST650 V2 chassis is non-negotiable. Validate PSU tier and cooling configuration against Lenovo's published thermal design guidance before deploying in high-ambient environments or fully populated storage configurations.
• The LGA 4189 platform is generation-locked — you cannot mix Ice Lake SP (3rd Gen) and Cascade Lake (2nd Gen) processors in the same chassis. If you're upgrading an existing ST650 V2 with a 2nd Gen processor installed, the second socket must also be a 3rd Gen SKU or left unpopulated.

This processor configuration is a strong fit for ST650 V2 deployments running enterprise VMS with edge analytics, virtualized security operations workloads, or any application server role where high thread count within a single-socket budget is the primary design constraint.