Supermicro part number P4X-DPX5660-280-12M640 identifies the P4X-DPX5660-280-12M640 - Supermicro 2.80GHz 6.4GT/s QPI 12MB SmartCache Socket FCLGA1366 Intel Xeon X5660 6-Core Processor, an enterprise-grade Intel Unboxed Processors unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include clock speed of 2.80 GHz, bus speed of 6.4 GT/s, cache of Intel Smart Cache, socket of FCLGA1366. Workload fit covers VMware ESXi virtualization hosts (vCPU density), SQL Server / Oracle database licensing optimization (per-core), Kubernetes container density, and HPC compute-node provisioning. Pro Disk Network sources the P4X-DPX5660-280-12M640 through reputable distribution channels and applies a verification check against the OEM compatibility matrix before each unit is added to active inventory. Each unit ships from a US fulfillment hub (Hillsboro OR, Atlanta GA, or Phoenix AZ) with same-day dispatch on in-stock orders before 3pm ET. 90-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.
The P4X-DPX5660-280-12M640 is a Supermicro intel unboxed processors component with clock speed 2.80 GHz, bus speed 6.4 GT/s, cache Intel Smart Cache. Pricing on the P4X-DPX5660-280-12M640 is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the P4X-DPX5660-280-12M640 are shown on this page.
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Same-Day US Shipping — orders before 3pm ET ship today via UPS
30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: What socket does the P4X-DPX5660-280-12M640 use?
Confirm the socket against your motherboard's CPU support list - Intel Xeon Scalable spans LGA 3647 (1st/2nd gen), LGA 4189 (3rd gen Ice Lake), and LGA 4677 (4th/5th gen Sapphire/Emerald Rapids). A BIOS update is often required for newer steppings even on the same socket. Email sales@prodisknetwork.com with your motherboard model for a compatibility check.
How fast does the P4X-DPX5660-280-12M640 ship?
Pro Disk Network dispatches the P4X-DPX5660-280-12M640 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The P4X-DPX5660-280-12M640 is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.
Citrix VDI Pool — Frequency-sensitive — prefer high-clock 16–18 core SKUs over high-core-count parts to maintain user-perceived snappiness.
Kubernetes / Tanzu Workers — Higher core count amortises better across many small Pods. EVC mode planning matters for live-migrate parity.
AI Inference Host — Sapphire Rapids and Emerald Rapids include AMX silicon for INT8 inference acceleration — meaningful uplift for BERT, ResNet, and LLM serving.
What is the P4X-DPX5660-280-12M640?
The P4X-DPX5660-280-12M640 is a Supermicro server-class processor with clock speed 2.80 GHz and bus speed 6.4 GT/s, manufactured by Supermicro. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.
Pros & Cons of P4X-DPX5660-280-12M640
Pros
Same-day shipping from our US warehouse cuts deployment lead time
Cons
Refurbished tier may have minor IHS markings
Tray packaging — no retail Intel/AMD cooler included
Frequently Asked Questions about P4X-DPX5660-280-12M640
Is the P4X-DPX5660-280-12M640 a genuine Supermicro part?
Yes. Pro Disk Network sources every P4X-DPX5660-280-12M640 as factory-original Supermicro inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Supermicro servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
What socket does the P4X-DPX5660-280-12M640 use?
Confirm the socket against your motherboard's CPU support list - Intel Xeon Scalable spans LGA 3647 (1st/2nd gen), LGA 4189 (3rd gen Ice Lake), and LGA 4677 (4th/5th gen Sapphire/Emerald Rapids). A BIOS update is often required for newer steppings even on the same socket. Email sales@prodisknetwork.com with your motherboard model for a compatibility check.
How fast does the P4X-DPX5660-280-12M640 ship?
Pro Disk Network dispatches the P4X-DPX5660-280-12M640 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the P4X-DPX5660-280-12M640?
New P4X-DPX5660-280-12M640 units carry the full Supermicro manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the P4X-DPX5660-280-12M640?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Pro Disk Network Buyer’s Guide: Intel Unboxed Processors
Socket Compatibility, EVC Mode, and BIOS Revision Planning
For Hyper-V clusters, Live Migration compatibility is more forgiving but still benefits from matched CPU stepping across cluster nodes. For Kubernetes / Tanzu, CPU heterogeneity is acceptable because pods are stateless, but resource-request planning becomes harder when nodes have different core counts.
AI Workloads, AMX, and the Inference Performance Story
Late-generation Intel Xeon processors (Sapphire Rapids, Emerald Rapids, Granite Rapids) include AMX (Advanced Matrix Extensions) silicon that accelerates INT8 inference workloads dramatically. For the P4X-DPX5660-280-12M640, if AMX is present, BERT-base inference throughput improves 4-6× over the previous generation; LLM inference (Llama 2 7B INT8 quantised) improves 2-3×. AMX does not require code changes when used through libraries that already support it (oneAPI, ONNX Runtime, OpenVINO).