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 5 226V

CORE STATE Lunar Lake

CORE SPECS 8 Cores / 8 Threads

CLOCK SPEED 2.1 Base / 4.5 GHz Turbo

CACHE 8 MB (shared)

MAX TDP 17W

ARCHITECTURE Lunar Lake

nm

PROCESS 3 nm

LAUNCH DATE 2024

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

1,133

1,591

cinebench_cinebench_r15_singlecore

159

224

cinebench_cinebench_r20_multicore

4,722

6,630

cinebench_cinebench_r20_singlecore

666

935

cinebench_cinebench_r23_multicore

11,244

15,787

cinebench_cinebench_r23_singlecore

1,587

2,228

passmark_data_compression

147,320

178,892

passmark_data_encryption

9,262

13,189

passmark_extended_instructions

8,231

15,460

passmark_find_prime_numbers

40

170

passmark_floating_point_math

32,618

53,826

passmark_integer_math

48,498

39,680

passmark_multithread

13,234

18,589

passmark_physics

789

1,507

passmark_random_string_sorting

16,934

21,755

passmark_single_thread

3,192

3,895

passmark_singlethread

3,192

3,895

DETAILED SPECIFICATIONS

SPECIFICATION

i7-1255U

Ultra 5 226V

Core Specs

Cores

10

8 -20.0%

Threads

12

8 -33.3%

Base Clock (GHz)

1,700

2.1 -99.9%

Boost Clock (GHz)

4.7

4.5 -4.3%

Frequency (GHz)

1,700

2.1 -99.9%

Turbo Clock (GHz)

4.7

4.5 -4.3%

Multiplier

17

21 +23.5%

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)

8 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 5 (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

2.1 GHz up to 3.5 GHz

AI/NPU

NPU

—

Yes / 40 TOPS

Graphics

Integrated Graphics

Iris Xe 96EU

Arc 130V

Other

Market

Mobile

Mobile

Production Status

Active

Active

Part Number

SRLFP

SRPMQSRPMR

Package

FC-BGA16F

FC-BGA

Tj Max

100°C

100°C

View Core i7-1255U Details View Core Ultra 5 226V Details