Intel Xeon W-3175X

Desktop CPUIntel

Also called intel xeon w-3175x, xeon w-3175x, w-3175x, xeon-w-3175x

IntelDesktop CPUSkylake

Intel Xeon W desktop processor on Skylake, with 28 cores and 56 threads and 38.5 MB L3 at 255 W TDP on a 14 nm process addressing up to 512 GB.

What you need to know

Intel Xeon W-3175X is a legacy desktop cpu.

Intel Xeon W-3175X launched in October 1, 2018., It has 28 cores and 56 threads on Skylake, dropping into the FCLGA3647 socket. Treat the spec table as the facts. Age alone does not tell you to throw it out.

Still good?: Only if the workload is light
Product age: 7 years old
Upgrade pressure: Moderate

Feex says

If apps already feel slow, check RAM and storage before you blame this CPU by name alone.

What this hardware means today

Age and usefulness are not the same number. This page keeps them separate.

Performance today: Average. Average for the class when RAM, storage, and the GPU keep up.
Product age 7 years old: Legacy. Launched October 1, 2018. Newer platforms exist. That does not make this chip unusable by itself.
Support status: Supported. Current Windows and current applications still run on this class of CPU. Platform BIOS support depends on the motherboard or laptop vendor.
Upgrade pressure: Moderate. Upgrade pressure comes from platform features and specific CPU-bound work, not from the chip being unusable.

Where does it sit?

Skylake sits on Intel's recent Core timeline. Later desktop branding moved toward Core Ultra.

11th Gen

12th Gen

13th Gen

14th Gen

Core Ultra

Performance context

These are qualitative readings, not a fake 8.7 out of 10. Workload still wins.

Gaming: Good

Playable in lighter titles. A weak GPU will hide whatever this chip still has.

Productivity: Average

28 cores cover office, browser, and compile work in this class.

Multithreaded workloads: Very Good

56 threads. Heavy encodes still scale further on higher-core parts.

General use: Good

Everyday Windows use is not where most people notice this SKU first.

Efficiency: Average

Rated 255 W base power. That is a platform number, not a promise about your cooler.

Should you upgrade?

Probably not based on CPU performance alone.

Upgrade makes more sense if

Your workload is strongly CPU limited
You need a newer platform for memory, I/O, or chipset features
You need substantially more multicore performance
You need newer connectivity that your current board cannot offer

Upgrade makes less sense if

The GPU is the real bottleneck
Current applications are already responsive
The CPU rarely limits your workload

Specifications

Figures below follow the Feex Hardware Database record for this SKU. Fields without a recorded value are omitted.

Processor

Intel Xeon W-3175X is built on Skylake using a 14 nm process.

Intel Xeon W-3175X specifications: Processor
Manufacturer	Intel
Family	Xeon W
Architecture	Skylake
Generation	Intel Xeon W Processor
Manufacturing process	14 nm
Segment	Desktop

Cores and threads

Intel Xeon W-3175X has 28 cores and 56 threads.

Intel Xeon W-3175X specifications: Cores and threads
Cores	28
Threads	56

Clock speeds

Base clock is 3.1 GHz. Boost reaches 3.8 GHz.

Intel Xeon W-3175X specifications: Clock speeds
Base frequency	3.1 GHz
Max boost	3.8 GHz

Cache

Cache on this sheet is 38.5 MB L3.

Intel Xeon W-3175X specifications: Cache
L3 cache	38.5 MB
Total cache	38.5 MB

Memory

Intel Xeon W-3175X addresses 512 GB across 6 memory channels.

Intel Xeon W-3175X specifications: Memory
Supported types	DDR4
Max capacity	512 GB
Channels	6

Package and power

Intel Xeon W-3175X uses the FCLGA3647 socket and a 255 W TDP.

Intel Xeon W-3175X specifications: Package and power
Socket	FCLGA3647
TDP	255 W
PCIe	Revision 3.0, 48 lanes

Market

Intel Xeon W-3175X launched October 1, 2018.

Intel Xeon W-3175X specifications: Market
Launch date	October 1, 2018
Model	W-3175X

Features

Intel Xeon W-3175X records 5 instruction sets on this sheet.

Intel Xeon W-3175X specifications: Features
Instruction sets	AVX-512AVX2AVX64-bit (x86-64)SSE4.2
Security	Boot Guard
Virtualization	Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)

Compatibility

Compatibility
Socket	FCLGA3647
Board	A shared socket is not automatic compatibility. Check the motherboard CPU list and BIOS revision.
Memory	DDR4, up to 512 GB

A shared socket is not automatic compatibility. Boards often need a BIOS update before a newer chip in the same socket will post.

Cooler clearance, VRM quality, and power limits matter as much as the socket name.

Read the memory list on the board. The CPU can list more standards than one motherboard will accept.

No post after a CPU swap

Clear CMOS only after you confirm the board list includes this SKU and the BIOS is new enough. A supported name on a box is not the same as a flashed board.

Sources and verification

Reviewed by Feex editorial. Last verified August 2026 Status: Partially Verified. How we research.

Feex Hardware Database · Specification source used for this sheet. CC BY 4.0.
Photo: Notdjey · CC BY 2.0

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