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 i9-11900H

CORE STATE Tiger Lake-H

CORE SPECS 8 Cores / 16 Threads

CLOCK SPEED 2.1 Base / 4.9 GHz Turbo

CACHE 24 MB (shared)

MAX TDP 35W

ARCHITECTURE Tiger Lake

nm

PROCESS 10 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

1,133

1,726

cinebench_cinebench_r15_singlecore

159

243

cinebench_cinebench_r20_multicore

4,722

7,193

cinebench_cinebench_r20_singlecore

666

1,015

cinebench_cinebench_r23_multicore

11,244

17,128

cinebench_cinebench_r23_singlecore

1,587

2,418

passmark_data_compression

147,320

239,366

passmark_data_encryption

9,262

12,232

passmark_extended_instructions

8,231

16,123

passmark_find_prime_numbers

40

87

passmark_floating_point_math

32,618

43,094

passmark_integer_math

48,498

72,882

passmark_multithread

13,234

20,162

passmark_physics

789

953

passmark_random_string_sorting

16,934

28,328

passmark_single_thread

3,192

3,102

passmark_singlethread

3,192

3,102

3dmark_16_threads

N/A

6,072

3dmark_2_threads

N/A

1,708

3dmark_4_threads

N/A

3,104

3dmark_8_threads

N/A

5,001

3dmark_max_threads

N/A

6,109

3dmark_single_thread

N/A

917

DETAILED SPECIFICATIONS

SPECIFICATION

i7-1255U

i9-11900H

Core Specs

Cores

10

8 -20.0%

Threads

12

16 +33.3%

Base Clock (GHz)

1,700

2.1 -99.9%

Boost Clock (GHz)

4.7

4.9 +4.3%

Frequency (GHz)

1,700

2.1 -99.9%

Turbo Clock (GHz)

4.7

4.9 +4.3%

Multiplier

17

21 +23.5%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

80 KB (per core)

80 KB (per core)

L2 Cache

1.25 MB (per core)

1.25 MB (per core)

L3 Cache

12 MB (shared)

24 MB (shared)

Power

TDP (W)

15

35 +133.3%

PL1

15 W

—

PL2

55 W

—

Architecture

Architecture

Alder Lake

Tiger Lake

Codename

Alder Lake-U

Tiger Lake-H

Generation

Core i7 (Alder Lake-U)

Core i9 (Tiger Lake-H)

Process Size

10 nm

10 nm

Die Size

—

190 mm²

Foundry

Intel

Intel

Memory

Memory Support

DDR4, DDR5

DDR4

Memory Bus

Dual-channel

Dual-channel

Memory Bandwidth

—

51.2 GB/s

ECC Memory

No

No

DDR4 Speed

3200 MT/s

—

DDR5 Speed

4800 MT/s

—

Platform

Socket

Intel BGA 1744

Intel BGA 1787

Chipsets

—

QM580, HM570, WM590

PCIe

Gen 4, 20 Lanes(CPU only)

Gen 4, 20 Lanes(CPU only)

Intel Hybrid

Hybrid Cores

P-Cores: 2 E-Cores: 8

—

E-Core Frequency

1200 MHz up to 3.5 GHz

—

Graphics

Integrated Graphics

Iris Xe 96EU

UHD Graphics 750

Other

Market

Mobile

Mobile

Production Status

Active

End-of-life

Launch Price

—

$546

Part Number

SRLFP

SRKT7

Package

FC-BGA16F

FC-BGA16F

Tj Max

100°C

100°C

View Core i7-1255U Details View Core i9-11900H Details