CPU Comparison

i

Intel

INTEL

Intel Core i7-1255U

CORE STATE Alder Lake-U

CORE SPECS 10 Cores / 12 Threads

CLOCK SPEED 1700 Base / 4.7 GHz Turbo

CACHE 12 MB (shared)

MAX TDP 15W

ARCHITECTURE Alder Lake

nm

PROCESS 10 nm

LAUNCH DATE 2022

VS

i

Intel

INTEL

Core Ultra 7 266V

CORE STATE Lunar Lake

CORE SPECS 8 Cores / 8 Threads

CLOCK SPEED 2.2 Base / 5 GHz Turbo

CACHE 12 MB (shared)

MAX TDP 17W

ARCHITECTURE Lunar Lake

nm

PROCESS 3 nm

LAUNCH DATE 2024

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

1,133

1,754

cinebench_cinebench_r15_singlecore

159

247

cinebench_cinebench_r20_multicore

4,722

7,310

cinebench_cinebench_r20_singlecore

666

1,031

cinebench_cinebench_r23_multicore

11,244

17,406

cinebench_cinebench_r23_singlecore

1,587

2,457

passmark_data_compression

147,320

196,806

passmark_data_encryption

9,262

14,520

passmark_extended_instructions

8,231

16,650

passmark_find_prime_numbers

40

201

passmark_floating_point_math

32,618

60,087

passmark_integer_math

48,498

43,578

passmark_multithread

13,234

20,466

passmark_physics

789

1,684

passmark_random_string_sorting

16,934

24,009

passmark_single_thread

3,192

4,158

passmark_singlethread

3,192

4,158

DETAILED SPECIFICATIONS

SPECIFICATION

i7-1255U

Ultra 7 266V

Core Specs

Cores

10

8 -20.0%

Threads

12

8 -33.3%

Base Clock (GHz)

1,700

2.2 -99.9%

Boost Clock (GHz)

4.7

5 +6.4%

Frequency (GHz)

1,700

2.2 -99.9%

Turbo Clock (GHz)

4.7

5 +6.4%

Multiplier

17

22 +29.4%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

80 KB (per core)

192 KB (per core)

L2 Cache

1.25 MB (per core)

2.5 MB (per core)

L3 Cache

12 MB (shared)

12 MB (shared)

Power

TDP (W)

15

17 +13.3%

PL1

15 W

—

PL2

55 W

—

Architecture

Architecture

Alder Lake

Lunar Lake

Codename

Alder Lake-U

Lunar Lake

Generation

Core i7 (Alder Lake-U)

Ultra 7 (Lunar Lake)

Process Size

10 nm

3 nm

Foundry

Intel

TSMC

Memory

Memory Support

DDR4, DDR5

unknown Depends on motherboard

Memory Bus

Dual-channel

Dual-channel

ECC Memory

No

No

DDR4 Speed

3200 MT/s

—

DDR5 Speed

4800 MT/s

—

Platform

Socket

Intel BGA 1744

Intel BGA 2833

PCIe

Gen 4, 20 Lanes(CPU only)

Gen 5, 4 Lanes(CPU only)

Intel Hybrid

Hybrid Cores

P-Cores: 2 E-Cores: 8

P-Cores: 4 E-Cores: 4

E-Core Frequency

1200 MHz up to 3.5 GHz

2.2 GHz up to 3.7 GHz

AI/NPU

NPU

—

Yes / 48 TOPS

Graphics

Integrated Graphics

Iris Xe 96EU

Arc 140V

Other

Market

Mobile

Mobile

Production Status

Active

Active

Part Number

SRLFP

SRPMMSRPMY

Package

FC-BGA16F

FC-BGA

Tj Max

100°C

100°C

View Core i7-1255U Details View Core Ultra 7 266V Details