Intel Xeon W9-3575X 44-Core 2.20GHz FCLGA4677 Processor
The Intel Xeon W9-3575X is a workstation processor built on the Sapphire Rapids architecture with 44 cores and 88 threads, running at a 2.20 GHz base frequency and boosting up to 4.8 GHz. Its 97.5 MB Intel Smart Cache and eight-channel DDR5 ECC RDIMM support at up to 4800 MT/s give memory-intensive workloads the bandwidth and error correction they need.
With PCIe 5.0 and up to 112 lanes, the processor connects multiple professional graphics cards, NVMe storage, and high-speed networking adapters in a single-socket FCLGA4677 platform. It requires an Intel W790 chipset motherboard and a cooling solution rated for its 340 W thermal design power, and it is validated for Windows Server enterprise editions and commercial Linux distributions.
Key Features
| Manufacturer | Intel |
| Part Number | BXC807133575X |
| Device Type | Workstation Processor |
| Processor Model | Xeon W9-3575X |
| Cores / Threads | 44 cores / 88 threads |
| Base Frequency | 2.20 GHz |
| Max Turbo Frequency | Up to 4.8 GHz |
| L3 Cache | 97.5 MB Intel Smart Cache |
| Architecture | Sapphire Rapids |
| Process Technology | Intel 7 |
| Spec Code | SRN72 |
| Stepping | E5 |
| Thermal Design Power (TDP) | 340 W |
| Maximum Turbo Power | 324 W |
| Form Factor | Boxed |
| Market Segment | Workstation |
| Integrated Graphics | None |
| Integrated Cooling | No cooler included |
| Memory Type | DDR5 ECC Registered RDIMM |
| Memory Channels | 8-channel configuration |
| Maximum Memory Speed | DDR5-4800 |
| ECC Support | Fully supported |
| Socket | FCLGA4677 (Socket E) / FC-LGA16A |
| PCI Express | PCIe 5.0 |
| PCIe Lanes | Up to 112 lanes |
| Motherboard Platforms | Requires Intel W790 chipset boards |
| Operating System Compatibility | Compatible with Windows Server enterprise editions; Validated for commercial Linux distributions |
Highlights
The Intel Xeon W9-3575X workstation processor is engineered for high-performance computing environments, offering 44 cores, advanced DDR5 memory support, and PCIe 5.0 expansion. Built on Sapphire Rapids architecture, it ensures enterprise-grade scalability and reliability.
Compatibility
The Intel Xeon W9-3575X installs in the FCLGA4677 (Socket E) and requires an Intel W790 chipset motherboard. It supports DDR5 ECC Registered RDIMM memory in an eight-channel configuration at speeds up to 4800 MT/s, and is validated for Windows Server enterprise editions and commercial Linux distributions.
How to use
Install the processor into an FCLGA4677 socket on a compatible Intel W790 chipset motherboard, apply a cooler rated for 340 W TDP, and pair it with a high-efficiency workstation power supply using native multi-pin EPS connectors.
Warranty
3 years Warranty
Frequently asked questions
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Shipping Information
All orders ship from the Bilikili warehouse at 7571 Randolph Rd NE, Moses Lake, WA 98837.
- Processing time: In-stock orders placed before 1:00 PM PT on a business day usually ship the same or next business day. Large systems (workstations, gaming PCs) may need 1–3 business days for packing and inspection.
- Carriers: We ship with major carriers (UPS, FedEx and USPS). The carrier is chosen for the fastest, safest delivery of your item.
- Tracking: You’ll receive a tracking number by email as soon as your order leaves the warehouse.
- Packaging: Components are shipped in their original retail packaging, with extra protective packing for fragile items.
- High-value orders: Orders over a certain value may require a signature on delivery.
- Where we ship: We currently ship within the United States. Shipping costs are shown at checkout before you pay.
Have a question about your shipment? Email help@bilishop.store with your order number.
Returns & Refunds
We want you to be happy with your hardware. If something isn’t right, you can request a return within 30 days of delivery.
- Items must be returned in their original condition and packaging, with all accessories, manuals and cables.
- To start a return, email help@bilishop.store with your order number and reason. We’ll send you a Return Authorization (RMA) number and instructions.
- Returns without an RMA number may be delayed or refused.
- Once we receive and inspect your return, your refund is issued to the original payment method, usually within 5–7 business days.
- Items that arrive damaged or defective (DOA) — contact us within 48 hours of delivery and we’ll make it right.
- Opened software, items with physical damage, or products missing parts may not be eligible for a full refund.
See our full Refund Policy.
Warranty & RMA
Products sold by Bilikili are covered by the original manufacturer’s warranty. Warranty length varies by brand and product and is listed in the specifications where available.
- Within our return window: If an item is defective within 30 days of delivery, contact us and we’ll arrange a replacement or refund.
- After the return window: Warranty claims are handled directly by the manufacturer (AMD, NVIDIA, ASUS, GIGABYTE, Dell/Alienware, Acer, PNY, etc.). We’re happy to help you find the right support contact and provide your proof of purchase.
- Keep your order confirmation email — it serves as your proof of purchase.
Need help with a warranty claim? Email help@bilishop.store.
