Lenovo 7XG7A04649 SN550 Xeon 5120 14C/105W/2.2GHZ

Lenovo 7XG7A04649 Xeon Gold 5120 14-Core Processor Option for ThinkSystem SN550

Overview

The Lenovo 7XG7A04649 is an Intel Xeon Gold 5120 processor option kit designed for the ThinkSystem SN550 blade server. Clocked at 2.2 GHz base with a 3.2 GHz Turbo Boost ceiling across 14 cores and 28 threads, this 1st Generation Intel Xeon Scalable processor targets compute-dense blade environments where per-socket thread count and memory capacity directly affect workload density. If you're running virtualized surveillance infrastructure, video analytics engines, or multi-tenant edge compute on SN550 blades, the 7XG7A04649 provides a meaningful jump in parallel processing headroom over lower-core-count options in the same socket family.

Key Features

• 14 Cores / 28 Threads: At 28 simultaneous threads per socket, this processor handles heavily multi-threaded workloads — VMS servers running concurrent streams, containerized analytics pipelines, or virtualized security appliances — without the context-switching overhead that slows down lower-core-count options.
• 2.2 GHz Base / 3.2 GHz Turbo: The 1.0 GHz Turbo headroom matters for latency-sensitive tasks like alarm event processing or real-time transcoding, where burst performance determines response time even when average utilization is moderate.
• 105W TDP: At 105W thermal design power, this is a mid-range thermal load within the Xeon Gold Skylake family. Verify your SN550 chassis and blade thermal zone are rated to handle this TDP — important when populating both processor sockets in a dual-socket configuration.
• 19.25 MB L3 Cache (Skylake architecture): The large L3 cache reduces main-memory fetches on working sets that fit within cache — useful for in-memory databases, caching layers, or real-time analytics that repeatedly access the same data structures.
• DDR4-2400 Support, Up to 768 GB: The processor supports DDR4-2400 across its memory channels, with a per-socket ceiling of 768 GB. For virtualized deployments running dozens of VMs or memory-resident analytics workloads, that headroom avoids the performance cliff that comes with memory-starved guests.
• LGA 3647 (Socket P), 14nm Skylake: The LGA 3647 socket is the standard for 1st Gen Xeon Scalable processors in this blade family. This is a physical compatibility gate — confirm the SN550 blade firmware and BIOS version support this processor before installation, as mixed-generation Scalable processor installs require BIOS validation.
• 64-bit Operating Mode: Full 64-bit execution with support for modern server OS environments ensures compatibility with current hypervisors (VMware ESXi, Hyper-V, KVM) and containerization platforms without legacy 32-bit overhead concerns.

Integration and Compatibility

The 7XG7A04649 is designed as a component option for the Lenovo ThinkSystem SN550 blade server — it is not a standalone server. Installation requires a populated SN550 blade chassis with the appropriate heatsink and retention hardware. The LGA 3647 socket accepts 1st Generation Intel Xeon Scalable processors only; 2nd Generation (Cascade Lake) processors use the same socket but require a different BIOS revision and may not be interchangeable on the same blade without firmware confirmation from Lenovo's compatibility matrix.

For deployments pairing the SN550 with a network video recorder stack or distributed analytics infrastructure, verify memory population rules — the Xeon Gold 5120's memory controller performs optimally with balanced DIMM population across channels. Running a surveillance VMS or server-based video management platform on this blade? Memory bandwidth at DDR4-2400 is the practical constraint for stream-count scaling, not core count — plan DIMM configuration accordingly.

For broader context on processor-based server builds for physical security infrastructure, review the Lenovo server and compute catalog for compatible SN550 blade configurations and accessory options.

Frequently Asked Questions

Q: What server is the Lenovo 7XG7A04649 compatible with?

A: The 7XG7A04649 is a processor option specifically for the Lenovo ThinkSystem SN550 blade server. It uses the LGA 3647 (Socket P) interface for 1st Generation Intel Xeon Scalable processors.

Q: How many cores and threads does the Xeon Gold 5120 provide?

A: The Intel Xeon Gold 5120 delivers 14 cores and 28 threads per socket, with a 2.2 GHz base clock and 3.2 GHz Turbo Boost frequency.

Q: What is the TDP of the 7XG7A04649 processor?

A: The Xeon Gold 5120 has a Thermal Design Power (TDP) of 105W. Confirm that your SN550 chassis thermal configuration supports this TDP, especially in dual-socket deployments.

Q: What memory type and maximum capacity does this processor support?

A: The processor supports DDR4-2400 MHz SDRAM with a maximum supported memory of 768 GB per socket.

Q: Is the 7XG7A04649 compatible with 2nd Generation Xeon Scalable (Cascade Lake) blades?

A: The 7XG7A04649 is a 1st Generation Intel Xeon Scalable (Skylake) processor. While it uses the same LGA 3647 socket, cross-generation compatibility depends on blade firmware. Verify against Lenovo's SN550 compatibility matrix before mixing processor generations.

Marty Allison

The 7XG7A04649 slots into the SN550 blade as a 14-core, 28-thread processor running at 2.2 GHz base — the spec that actually moves the needle for virtualized security infrastructure is that 768 GB maximum memory ceiling per socket combined with DDR4-2400 bandwidth. When you're consolidating VMS servers, analytics engines, and access control management onto blade infrastructure, memory headroom is typically the first constraint you hit, not core count.

Technical Highlights:

• 28 Threads at 105W TDP: You get strong multi-threaded throughput at a mid-range thermal envelope — important when blade chassis cooling budgets are shared across multiple populated slots. At 105W, this processor fits within the SN550's thermal design without requiring special cooling augmentation in standard configurations.
• 3.2 GHz Turbo Boost: The 1.0 GHz headroom above base clock provides real responsiveness for burst workloads — alarm-triggered analytics processing, report generation, or database query bursts in security management software all benefit from a processor that can sprint above base frequency under short-duration load.
• 19.25 MB L3 Cache: For workloads with hot working sets — in-memory video index databases, active analytics rule caches — the L3 size keeps frequently accessed data off the memory bus, reducing latency on repeated accesses without requiring additional DIMMs.

Deployment Considerations:

• This is a 1st Gen Xeon Scalable (Skylake) part. Before installing in an existing SN550 blade, confirm the blade's BIOS/UEFI firmware level supports this processor SKU — Lenovo periodically releases firmware updates that expand supported processor lists, and running an unsupported processor version can cause boot failures or performance throttling.
• At 105W TDP, dual-socket SN550 configurations draw 210W of processor TDP alone per blade slot. Account for this in chassis power budgeting — a fully populated SN550 chassis with dual 105W sockets per blade can approach or exceed chassis power zone limits if memory and storage are also heavily populated.

This processor is a practical fit for blade-based surveillance server consolidation projects where the SN550 chassis is already deployed and the workload growth — more VMS channels, more analytics instances, higher concurrent event throughput — has outpaced the original processor configuration. It's an upgrade path within existing infrastructure, not a greenfield component.