HPE P49597-B21 Intel Xeon Gold 5415+ Processor Kit for ProLiant G11
Overview
The P49597-B21 is HPE's factory-packaged Intel Xeon Gold 5415+ processor option kit for ProLiant Gen11 servers — an eight-core, 2.9GHz Sapphire Rapids CPU suited to workloads that need a balanced mix of single-thread performance and multi-core throughput without pushing into the higher TDP tiers. If you're expanding compute capacity in a HPE ProLiant G11 server and don't need the full core count of the higher-bin Xeon Gold or Xeon Platinum options, the 5415+ delivers a practical performance-per-watt tradeoff at 150W TDP. The kit ships sealed in static-safe packaging with the component processor (P60426-001) and is designed to slot into HPE's validated G11 platform — no compatibility guesswork with third-party parts.
Key Features
- 8-Core Sapphire Rapids Architecture: The Intel Xeon Gold 5415+ is built on Intel's Sapphire Rapids microarchitecture, which adds DDR5 memory support and PCIe 5.0 connectivity over its predecessors. In practice, this means faster memory bandwidth for I/O-intensive workloads like database queries, video analytics processing, or multi-stream surveillance server tasks — the kinds of bottlenecks that core count alone doesn't solve.
- 2.9GHz Base Clock: At 2.9GHz base, the 5415+ sits in a sweet spot for single-threaded throughput. Applications that can't parallelize across all cores — including many legacy enterprise apps and VMS (video management software) engines — will benefit from this higher per-core frequency compared to lower-clocked many-core options in the same family.
- 22.5MB Intel Smart Cache: The 22.5MB last-level cache reduces trips to main memory for working datasets that fit within it. For a surveillance analytics server processing object detection or motion analysis across multiple camera streams, this cache size keeps frequently-accessed model weights and frame buffers closer to the execution units — measurably reducing latency on per-frame inference cycles.
- 150W Thermal Design Power: At 150W TDP, the 5415+ is manageable in a standard 1U or 2U chassis with HPE's standard cooling solution, but this isn't a low-power part. Verify your server's airflow configuration and power supply headroom before installing — particularly in blade or dense rack deployments where aggregate heat load matters. HPE's G11 platform is validated for this TDP, so no surprises if you're staying within the supported server list.
- Socket FCLGA4677: The LGA4677 socket is specific to Intel's 4th-gen Xeon Scalable (Sapphire Rapids) platform. This processor does not retrofit into G10 or earlier HPE platforms — the socket and memory subsystem changed with G11. If you're upgrading a G10 system, this part won't physically fit; you'd need to source the correct G10-generation processor instead.
- 64-Bit Processing, Single Processor Quantity: The P49597-B21 kit includes one processor. Dual-socket G11 systems (like the DL380 Gen11 in its standard configuration) require a second kit for full multi-socket deployment. Single-socket servers like the DL320 Gen11 are fully served by this single-kit purchase.
- HPE Processor Option Kit Format: HPE ships this as a full processor option kit, not a bare-tray OEM part. The kit packaging (P49597-B21, containing component part P60426-001) is the format HPE's configurator expects for field upgrades and build-to-order server expansions. Using the kit PN is the correct procurement path for HPE ProLiant processor upgrades through HPE's support ecosystem.
Integration & Compatibility
The P49597-B21 (often searched as P49597 B21) is validated for the following HPE ProLiant Gen11 server platforms:
- HPE ProLiant ML Series: ML110 Gen11, ML350 Gen11
- HPE ProLiant DL Series: DL110 Gen11, DL320 Gen11, DL360 Gen11, DL380 Gen11
Before ordering, cross-reference your server's QuickSpecs document to confirm the maximum supported processor count, memory configuration rules (DDR5 population order may change with a second CPU installed), and any BIOS version prerequisites for Sapphire Rapids support. HPE typically requires a minimum system ROM version for new processor families — check HPE's Support Center for the applicable advisory for your specific server model. The component part number P60426-001 is the actual processor unit; P49597-B21 is the option kit PN used for ordering and is the reference you'll cite in purchase orders and asset tracking. Both are the same physical unit — one is the kit identifier, one is the component identifier.
For enterprises running network video recorders or server-based VMS platforms on ProLiant hardware, the DL360 Gen11 and DL380 Gen11 are common deployment targets. The 5415+ handles concurrent workloads (recording, analytics, and client streams simultaneously) without the overhead of higher-TDP 12- or 16-core options that may be unnecessary for mid-scale camera counts.
What's in the Box
- 1x Intel Xeon Gold 5415+ Processor (component part P60426-001), sealed in static-safe bag
Frequently Asked Questions
Q: Which HPE ProLiant Gen11 servers are compatible with the P49597-B21?
A: The P49597-B21 is validated for the HPE ProLiant ML110 Gen11, ML350 Gen11, DL110 Gen11, DL320 Gen11, DL360 Gen11, and DL380 Gen11. Always verify against your specific server's QuickSpecs before ordering.
Q: Will the P49597-B21 work in a Gen10 or Gen10 Plus HPE ProLiant server?
A: No. The Xeon Gold 5415+ uses the LGA4677 socket, which is specific to Gen11 (Sapphire Rapids) platforms. It is not physically or electrically compatible with Gen10 or Gen10 Plus servers, which use earlier Intel Xeon Scalable sockets.
Q: What is the warranty on the P49597-B21?
A: The P49597-B21 carries a 3-year manufacturer warranty.
Q: Does the P49597-B21 kit include a heatsink or thermal solution?
A: Based on available evidence, the kit includes the processor unit (component part P60426-001) sealed in a static bag. HPE's Gen11 platforms typically require a separate heatsink option depending on chassis and configuration — verify your server's thermal kit requirements via HPE's QuickSpecs for your specific model.
Q: What is the difference between part number P49597-B21 and P60426-001?
A: P49597-B21 is the HPE option kit part number used for procurement and ordering. P60426-001 is the component (processor unit) part number. The kit contains the single processor unit; both numbers refer to the same physical product at different levels of HPE's part numbering hierarchy.
Q: How many of these processors does a dual-socket DL380 Gen11 require?
A: The P49597-B21 kit includes one processor. A dual-socket deployment requires two kits. Single-socket configurations (such as the DL320 Gen11) require only one kit.
The P49597-B21 is a deliberate mid-tier pick in the Gen11 Xeon Gold lineup — the 5415+'s 150W TDP and 2.9GHz base clock make it the right call when you need per-core throughput without committing to the power and cooling overhead of a 16- or 24-core option. I see this processor specified most often in 1U and 2U ProLiant DL360/DL380 Gen11 builds where the workload is latency-sensitive rather than massively parallel.
Technical Highlights:
- Sapphire Rapids Platform: The move to LGA4677 and the Sapphire Rapids architecture brings DDR5 and PCIe 5.0 support to the platform — this matters most if your downstream expansion cards (HBAs, NICs, GPU accelerators) can take advantage of PCIe 5.0 bandwidth, which doubles the per-lane throughput over the prior generation.
- 22.5MB Smart Cache at 8 Cores: That works out to roughly 2.8MB of L3 cache per core — a healthy ratio for analytics and database workloads. Compare that to higher core-count options in the same family where cache is shared more thinly; if your software threads don't scale cleanly past 8 cores, those extra cores add heat without adding performance.
- 150W TDP — Firm Number: HPE's Gen11 thermal design accounts for this, but it's not a low-power processor. In a dense rack with multiple compute nodes, 150W per socket adds up fast. Size your PDU and cooling accordingly before specifying multiple DL360 Gen11 nodes with this processor.
Deployment Considerations:
- Confirm your target server's minimum system ROM version supports Sapphire Rapids before scheduling a maintenance window — HPE has issued BIOS prerequisites for new CPU families in the past, and skipping this step means a no-POST on first boot.
- The kit includes the processor in a sealed static bag (P60426-001); it does not include a heatsink. Verify whether your server chassis and configuration require a standard or high-performance heatsink kit separately — the DL380 Gen11 in dual-socket configurations may require an upgraded thermal solution depending on ambient conditions and airflow.
Best fit: a ProLiant DL360 Gen11 or DL380 Gen11 running a VMS platform, database engine, or analytics workload at mid-scale — where 8 fast cores outperform 16 slower ones and where staying under 150W per socket keeps the rack power budget manageable.
