Intel Xeon W-1390T

Workstation CPUIntel

Also called intel xeon w-1390t, xeon w-1390t, w-1390t, xeon-w-1390t

IntelWorkstation CPURocket Lake

Intel Xeon W workstation processor on Rocket Lake, with 8 cores and 16 threads and 16 MB L3 at 35 W TDP on a 14 nm process addressing up to 128 GB and Intel UHD Graphics P750.

What you need to know

Still a capable Xeon W desktop chip.

Intel Xeon W-1390T launched in April 1, 2021., It has 8 cores and 16 threads on Rocket Lake, dropping into the FCLGA1200 socket. It is no longer the newest SKU in every store, but the chip is still useful when the rest of the PC keeps up.

Still good?: Yes, for most work this class is sold for
Product age: 5 years old
Upgrade pressure: Low to moderate

Feex says

Old is not the same as bad. If the GPU is the bottleneck, swapping this CPU is one of the more expensive ways to learn that lesson.

What this hardware means today

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

Performance today: Very Good. Very Good for the class when RAM, storage, and the GPU keep up.
Product age 5 years old: Aging. Launched April 1, 2021. 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: Low to moderate. Upgrade pressure comes from platform features and specific CPU-bound work, not from the chip being unusable.

Where does it sit?

Rocket Lake 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: Very Good

Plenty for current games when the GPU is the limit, which it often is.

Productivity: Very Good

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

Multithreaded workloads: Good

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

General use: Excellent

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

Efficiency: Good

Rated 35 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-1390T is built on Rocket Lake using a 14 nm process.

Intel Xeon W-1390T specifications: Processor
Manufacturer	Intel
Family	Xeon W
Architecture	Rocket Lake
Generation	Intel Xeon W Processor
Manufacturing process	14 nm
Segment	Workstation

Cores and threads

Intel Xeon W-1390T has 8 cores and 16 threads.

Intel Xeon W-1390T specifications: Cores and threads
Cores	8
Threads	16

Clock speeds

Base clock is 1.5 GHz. Boost reaches 4.9 GHz.

Intel Xeon W-1390T specifications: Clock speeds
Base frequency	1.5 GHz
Max boost	4.9 GHz

Cache

Cache on this sheet is 16 MB L3.

Intel Xeon W-1390T specifications: Cache
L3 cache	16 MB
Total cache	16 MB

Memory

Intel Xeon W-1390T addresses 128 GB across 2 memory channels.

Intel Xeon W-1390T specifications: Memory
Supported types	DDR4
Max capacity	128 GB
Channels	2

Package and power

Intel Xeon W-1390T uses the FCLGA1200 socket and a 35 W TDP.

Intel Xeon W-1390T specifications: Package and power
Socket	FCLGA1200
TDP	35 W
PCIe	Revision 4.0, 20 lanes

Integrated graphics

Intel Xeon W-1390T includes Intel UHD Graphics P750.

Intel Xeon W-1390T specifications: Integrated graphics
Integrated graphics	Intel UHD Graphics P750

Market

Intel Xeon W-1390T launched April 1, 2021 at USD 546 (suggested price at launch).

Intel Xeon W-1390T specifications: Market
Launch date	April 1, 2021
Launch MSRP	USD 546 (suggested price at launch)
Model	W-1390T

Features

Intel Xeon W-1390T records 5 instruction sets on this sheet.

Intel Xeon W-1390T specifications: Features
Instruction sets	AVX-512AVX264-bit (x86-64)SSE4.1SSE4.2
Security	Boot GuardHardware RNGOS Guard
Virtualization	Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)
AI acceleration	Gaussian Neural Accelerator

Compatibility

Compatibility
Socket	FCLGA1200
Board	A shared socket is not automatic compatibility. Check the motherboard CPU list and BIOS revision.
Memory	DDR4, up to 128 GB
Graphics	Intel UHD Graphics P750

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.

Was this article useful?

A yes or no is enough. Pick a reason if you want, or add a short note.