Intel Core i7-1355U

Laptop CPUIntel

Also called intel core i7-1355u, core i7-1355u, i7-1355u, core-i7-1355u

IntelLaptop CPURaptor Lake

Intel Core i7 laptop processor on Raptor Lake, with 10 cores and 12 threads and 1280 KB L2, 12 MB L3 at 15 W TDP on a Intel 7 process addressing up to 96 GB and Intel® Iris® Xe Graphics eligible.

What you need to know

Still a capable laptop cpu.

Intel Core i7-1355U launched in 2023., It has 10 cores and 12 threads on Raptor Lake, dropping into the FCBGA1744 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: 3 years old
Upgrade pressure: Low to moderate

Feex says

Laptop SKUs are power-limited. The name on the lid is not the same chip you would get on a desktop board.

What this hardware means today

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

Performance today: Very Good. Laptop performance depends on the OEM power limit as much as this SKU name.
Product age 3 years old: Previous generation. Launched 2023. 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?

Raptor 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

Fine when the laptop GPU is the limit. CPU names on thin laptops often are not.

Productivity: Very Good

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

Multithreaded workloads: Good

12 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: Depends on the laptop

The same SKU in two laptops can draw very different power. Read the device, not the CPU name alone.

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 are buying a whole new laptop anyway

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 Core i7-1355U is built on Raptor Lake using a Intel 7 process at Intel.

Intel Core i7-1355U specifications: Processor
Manufacturer	Intel
Family	Core i7
Architecture	Raptor Lake
Generation	13th Generation Intel Core i7 Processors
Manufacturing process	Intel 7
Foundry	Intel
Die count	1
Segment	Laptop

Cores and threads

Intel Core i7-1355U has 10 cores and 12 threads.

Intel Core i7-1355U specifications: Cores and threads
Cores	10 (2 P-cores + 8 E-cores)
P-cores	2
E-cores	8
Threads	12
Threads per core	1.2
Hybrid architecture	Yes

Clock speeds

Base clock is 1.7 GHz. Boost reaches 5.0 GHz.

Intel Core i7-1355U specifications: Clock speeds
Base frequency	1.7 GHz
Max boost	5.0 GHz

Cache

Cache on this sheet is 12 MB L3.

Intel Core i7-1355U specifications: Cache
L2 cache	1280 KB
L3 cache	12 MB
Total cache	13.25 MB

Memory

Intel Core i7-1355U addresses 96 GB across 2 memory channels.

Intel Core i7-1355U specifications: Memory
Supported types	DDR5, DDR4, LPDDR5, LPDDR4X
Max capacity	96 GB
Channels	2
ECC support	No

Package and power

Intel Core i7-1355U uses the FCBGA1744 socket and a 15 W TDP.

Intel Core i7-1355U specifications: Package and power
Socket	FCBGA1744
TDP	15 W
Maximum turbo power	55 W
PCIe	20 lanes

Integrated graphics

Intel Core i7-1355U includes Intel® Iris® Xe Graphics eligible.

Intel Core i7-1355U specifications: Integrated graphics
Integrated graphics	Intel® Iris® Xe Graphics eligible

Market

Intel Core i7-1355U launched 2023 at USD 469 (suggested price at launch).

Intel Core i7-1355U specifications: Market
Launch date	2023
Launch MSRP	USD 469 (suggested price at launch)
Model	i7-1355U

Features

Intel Core i7-1355U records 43 instruction sets on this sheet.

Intel Core i7-1355U specifications: Features
Instruction sets	AES-NIAVX2AVXAVX-VNNICETCET-IBTCET-SSFMAFMA3Hyper-ThreadingSHAVAES64-bit (x86-64)BMI1BMI2CLMULF16CGFNIPCLMULQDQRDRANDRDSEEDSSE4.1SSE4.2x86-64-v3ABMADXCMPXCHG16BEnhanced SpeedStepFast Short Rep MOVSFXSRInvariant TSCLZCNTPOPCNTRDTSCPSSESSE2SSE3SSSE3x86-64-v2XSAVEXSAVEOPTMMXMOVBE
Security	AES-NIControl-flow Enforcement (CET)Execute Disable (NX)Boot GuardHardware RNGHardware ShieldOS GuardOS Guard (SMAP)Trusted ExecutionMode-Based Execute ControlQuickAssist EngineThreat DetectionHardware ManageabilityVolume Management Device
Virtualization	Extended Page Tables (EPT)VT-d (DMA Remapping)VT-x (Hardware Virtualization)VT-x with EPTMode-Based Execute Control
AI acceleration	Deep Learning BoostGaussian Neural Accelerator
OS capabilities	Docker / Hyper-V readyLinux KVM readyWindows 11 eligibleAndroid emulator readyWSL2 ready

Independent scores

These are PassMark CPU figures. They are not Feex measurements.

Intel Core i7-1355U specifications: Independent scores
Single-core score	3,390
Multi-core score	13,957
Overall score	6,879
Productivity score	13,818
Creator score	13,778
Engineering score	14,742
Gaming score	13,659
Performance per watt	930.5

Compatibility

Compatibility
Socket	FCBGA1744
Board	A shared socket is not automatic compatibility. Check the motherboard CPU list and BIOS revision.
Memory	DDR5, DDR4, LPDDR5, LPDDR4X, up to 96 GB
Graphics	Intel® Iris® Xe Graphics eligible

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

Laptop power limits, cooling, and the OEM firmware matter as much as the model 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.
PassMark Software · CPU benchmark page for Intel Core i7-1355U

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