Lenovo 4XG7A63459 SR650 V2 Silver 4310T 10C 105W 2.3GHZ

Lenovo 4XG7A63459 Intel Xeon Silver 4310T Processor Option for ThinkSystem SR650 V2

Overview

The Lenovo 4XG7A63459 is a factory-configured processor option kit that drops an Intel Xeon Silver 4310T into the Lenovo ThinkSystem SR650 V2 platform. The 4310T is a 10-core, 20-thread Ice Lake-SP part running at 2.3 GHz base with a 3.4 GHz all-core boost — a deliberately power-efficient SKU at 105 W TDP that fits dual-socket SR650 V2 configurations without pushing thermal headroom. If you are speccing a rack server for a workload that needs plenty of threads but cannot exceed a tight per-socket power envelope, the 4310T is the line to look at in the Silver 4000 series.

Key Features

• 10 cores / 20 threads at 2.3 GHz base, 3.4 GHz boost: The 4310T delivers the thread count to handle concurrent VM instances, containerized workloads, or multi-stream video analytics without the cost of a Gold-tier chip. The 1.1 GHz spread between base and boost means bursty workloads — indexing, batch transcoding, nightly report generation — get meaningful headroom without sustained power draw penalties.
• 105 W TDP — the lowest-power SKU in the 4310 family: The T-suffix designation is Intel's power-optimized variant. At 105 W versus the standard 4310's 120 W, you recover 15 W per socket — 30 W per populated dual-socket chassis — which matters in dense rack configurations where per-rack PDU amperage is already allocated. This is the processor choice when cooling or power infrastructure is a constraint, not an afterthought.
• LGA 4189 socket on the Ice Lake-SP architecture: Ice Lake-SP (10 nm lithography) brings PCIe 4.0 native support to the SR650 V2 platform. For integrators pairing NVR appliances or GPU accelerator cards with this server, PCIe 4.0 doubles the per-lane bandwidth over the prior generation — reducing I/O bottlenecks on high-throughput storage or inference workloads.
• 15 MB L3 cache across 10 cores: 1.5 MB per core is a practical cache allocation for server workloads. Latency-sensitive operations — database lookups, real-time analytics, in-memory key-value stores — benefit from keeping working sets closer to the execution units rather than falling back to DRAM on every access.
• Up to 6 TB maximum memory capacity per socket: The 4310T supports up to 6 TB of RAM via the SR650 V2's memory subsystem. For VMs or analytics platforms that benefit from large in-memory datasets — think video management software with active recording buffers or database-backed access control systems — this ceiling is rarely a limitation in practice, even at enterprise scale.
• 10.4 GT/s UPI interconnect: The Ultra Path Interconnect at 10.4 GT/s handles socket-to-socket coherency traffic in a dual-processor SR650 V2 build. Workloads that share memory across both sockets — shared-memory parallel processing, NUMA-aware databases — stay coherent without the latency penalties that plagued earlier QPI implementations.
• 3rd Generation Intel Xeon Scalable (Ice Lake-SP, 10 nm): The process node move to 10 nm over the prior 14 nm generation delivers improved instructions-per-clock efficiency. Real-world impact: equivalent throughput at lower clock rates, or more throughput at the same power draw — directly affecting total cost of ownership over a multi-year server lifecycle.
• 64-bit operating mode with 20 hardware threads: Full 64-bit execution with simultaneous multithreading means the OS scheduler has 20 logical processors to assign to processes. For hypervisors (VMware ESXi, Hyper-V, KVM) running mixed workloads, more schedulable units mean less contention and more predictable latency under load.

Integration and Compatibility

The 4XG7A63459 is validated for installation in the Lenovo ThinkSystem SR650 V2 server platform. The LGA 4189 socket is specific to 3rd Generation Intel Xeon Scalable processors — this part is not cross-compatible with earlier SR650 (Gen 1 or Gen 2) platforms that use the LGA 3647 socket. Confirm your chassis generation before ordering. In dual-socket SR650 V2 configurations, both processor sockets must be populated with compatible Xeon Scalable processors; the 4310T can be paired with other 3rd Gen Xeon Scalable parts per Lenovo's validated configuration matrix. The processor's PCIe 4.0 lane support enables full-bandwidth connectivity to NVMe storage controllers, 100GbE NICs, and GPU compute cards validated for the SR650 V2 platform. For network infrastructure design, the 10.4 GT/s UPI bus is relevant when planning NUMA topology for latency-sensitive applications across both sockets.

Frequently Asked Questions

Q: Is the Lenovo 4XG7A63459 compatible with the original ThinkSystem SR650 (non-V2)?

A: No. The 4XG7A63459 uses the LGA 4189 socket (3rd Gen Intel Xeon Scalable / Ice Lake-SP). The original SR650 uses the LGA 3647 socket (1st/2nd Gen Xeon Scalable). These sockets are physically incompatible — this processor is validated for the SR650 V2 only.

Q: What is the TDP of the Xeon Silver 4310T in the 4XG7A63459?

A: The Intel Xeon Silver 4310T has a Thermal Design Power (TDP) of 105 W. This is the T-suffix power-optimized variant, lower than the standard 4310 at 120 W — relevant when planning per-rack power budgets or cooling capacity.

Q: How many cores and threads does the 4XG7A63459 processor provide?

A: The Xeon Silver 4310T provides 10 physical cores with Intel Hyper-Threading enabled, giving the OS 20 logical processors (threads) to schedule workloads across.

Q: What is the maximum memory this processor supports in the SR650 V2?

A: The Intel Xeon Silver 4310T supports up to 6 TB of system memory per socket via the SR650 V2 memory subsystem, depending on DIMM configuration and memory type supported by the platform.

Q: Does the 4310T support PCIe 4.0?

A: Yes. As a 3rd Generation Intel Xeon Scalable (Ice Lake-SP) processor, the 4310T natively supports PCIe 4.0, providing double the per-lane bandwidth of PCIe 3.0 for high-throughput storage controllers, network cards, and accelerator cards installed in the SR650 V2.

Q: Can this processor be used in a dual-socket SR650 V2 configuration?

A: Yes. The SR650 V2 supports dual LGA 4189 sockets. The 4310T can be paired with another 3rd Gen Xeon Scalable processor in the second socket. Both sockets must be populated with compatible processors per Lenovo's configuration guidelines for dual-socket operation.

Eden Phillips

The 4XG7A63459 is the processor option I reach for when a customer needs to populate the second socket in an SR650 V2 without doubling their power draw budget. The 105 W TDP on the Xeon Silver 4310T is the deciding factor — in a fully loaded 42U rack, the difference between 105 W and 120 W per socket adds up fast once you account for redundant PSU headroom and cooling overhead. Ten cores at 2.3 GHz base with a 3.4 GHz boost is a workload-appropriate profile for video management back-ends, lightweight virtualization hosts, and analytics nodes that run at moderate sustained utilization rather than pinned-to-max compute.

Technical Highlights:

• 105 W TDP (T-suffix): 15 W lower per socket than the standard 4310 — in a dual-socket chassis that is 30 W recovered per server, meaningful when you have 20 servers per rack under a 30A circuit.
• 3.4 GHz boost on 10 cores: The 1.1 GHz spread between base and boost gives hypervisor workloads burst capacity for short-duration jobs without requiring the processor to sustain elevated clock rates — directly affecting thermal stability in warm rack environments.
• 6 TB maximum memory per socket: The Ice Lake-SP memory controller ceiling of 6 TB means this platform scales well ahead of current VM density requirements for security infrastructure workloads — you are unlikely to hit the memory wall before the platform reaches end-of-support.

Deployment Considerations:

• Confirm chassis generation before ordering — LGA 4189 is SR650 V2 specific. An SR650 Gen 1 or Gen 2 chassis uses LGA 3647 and will not accept this processor physically.
• The 4310T's 10.4 GT/s UPI bus is shared across both sockets in a dual-processor build — NUMA-aware OS and hypervisor configuration is important for latency-sensitive workloads that access memory across both sockets; ignoring NUMA topology can erode the performance advantage the 20-thread count provides.

Best fit: a dual-socket SR650 V2 build serving as a consolidated video management server or virtualization host in a colocation or enterprise datacenter environment where per-rack power is metered and the 105 W ceiling per socket keeps the deployment inside existing infrastructure limits without a PDU or cooling upgrade.