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 115U

CORE STATE Meteor Lake

CORE SPECS 8 Cores / 10 Threads

CLOCK SPEED 1500 Base / 4.2 GHz Turbo

CACHE 10 MB (shared)

MAX TDP 15W

ARCHITECTURE Meteor Lake

nm

PROCESS 7 nm

LAUNCH DATE 2023

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

1,133

1,115

cinebench_cinebench_r15_singlecore

159

157

cinebench_cinebench_r20_multicore

4,722

4,649

cinebench_cinebench_r20_singlecore

666

656

cinebench_cinebench_r23_multicore

11,244

11,070

cinebench_cinebench_r23_singlecore

1,587

1,562

passmark_data_compression

147,320

141,945

passmark_data_encryption

9,262

8,606

passmark_extended_instructions

8,231

8,620

passmark_find_prime_numbers

40

53

passmark_floating_point_math

32,618

30,538

passmark_integer_math

48,498

41,043

passmark_multithread

13,234

13,024

passmark_physics

789

898

passmark_random_string_sorting

16,934

15,124

passmark_single_thread

3,192

3,057

passmark_singlethread

3,192

3,057

DETAILED SPECIFICATIONS

SPECIFICATION

i7-1255U

Ultra 5 115U

Core Specs

Cores

10

8 -20.0%

Threads

12

10 -16.7%

Base Clock (GHz)

1,700

1,500 -11.8%

Boost Clock (GHz)

4.7

4.2 -10.6%

Frequency (GHz)

1,700

1,500 -11.8%

Turbo Clock (GHz)

4.7

4.2 -10.6%

Multiplier

17

15 -11.8%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

80 KB (per core)

112 KB (per core)

L2 Cache

1.25 MB (per core)

2 MB (per core)

L3 Cache

12 MB (shared)

10 MB (shared)

Power

TDP (W)

15

15 0.0%

PL1

15 W

—

PL2

55 W

—

Architecture

Architecture

Alder Lake

Meteor Lake

Codename

Alder Lake-U

Meteor Lake

Generation

Core i7 (Alder Lake-U)

Ultra 5 (Meteor Lake)

Process Size

10 nm

7 nm

Foundry

Intel

Intel

Memory

Memory Support

DDR4, DDR5

DDR5 Depends on motherboard

Memory Bus

Dual-channel

Dual-channel

Memory Bandwidth

—

89.6 GB/s

ECC Memory

No

No

DDR4 Speed

3200 MT/s

—

DDR5 Speed

4800 MT/s

—

Platform

Socket

Intel BGA 1744

Intel BGA 2049

PCIe

Gen 4, 20 Lanes(CPU only)

Gen 4, 12 Lanes(CPU only)

Intel Hybrid

Hybrid Cores

P-Cores: 2 E-Cores: 8

P-Cores: 2 E-Cores: 6

E-Core Frequency

1200 MHz up to 3.5 GHz

1000 MHz up to 3.5 GHz

LP E-Cores

—

2

AI/NPU

NPU

—

Yes / 11 TOPS

Graphics

Integrated Graphics

Iris Xe 96EU

Arc Xe-LPG 48EU

Other

Market

Mobile

Mobile

Production Status

Active

Active

Part Number

SRLFP

SRN6F

Package

FC-BGA16F

FC-BGA

Tj Max

100°C

110°C

View Core i7-1255U Details View Core Ultra 5 115U Details