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 i9-14900HX

CORE STATE Raptor Lake-HX

CORE SPECS 24 Cores / 32 Threads

CLOCK SPEED 2.2 Base / 5.8 GHz Turbo

CACHE 36 MB (shared)

MAX TDP 55W

ARCHITECTURE Raptor Lake

nm

PROCESS 10 nm

LAUNCH DATE 2024

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

1,133

3,884

cinebench_cinebench_r15_singlecore

159

548

cinebench_cinebench_r20_multicore

4,722

16,185

cinebench_cinebench_r20_singlecore

666

2,284

cinebench_cinebench_r23_multicore

11,244

38,536

cinebench_cinebench_r23_singlecore

1,587

5,440

passmark_data_compression

147,320

560,104

passmark_data_encryption

9,262

33,805

passmark_extended_instructions

8,231

32,457

passmark_find_prime_numbers

40

200

passmark_floating_point_math

32,618

115,994

passmark_integer_math

48,498

162,363

passmark_multithread

13,234

45,339

passmark_physics

789

2,761

passmark_random_string_sorting

16,934

62,804

passmark_single_thread

3,192

4,246

passmark_singlethread

3,192

4,246

geekbench_multicore

N/A

15,658

geekbench_singlecore

N/A

2,680

DETAILED SPECIFICATIONS

SPECIFICATION

i7-1255U

i9-14900HX

Core Specs

Cores

10

24 +140.0%

Threads

12

32 +166.7%

Base Clock (GHz)

1,700

2.2 -99.9%

Boost Clock (GHz)

4.7

5.8 +23.4%

Frequency (GHz)

1,700

2.2 -99.9%

Turbo Clock (GHz)

4.7

5.8 +23.4%

Multiplier

17

22 +29.4%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

80 KB (per core)

80 KB (per core)

L2 Cache

1.25 MB (per core)

2 MB (per core)

L3 Cache

12 MB (shared)

36 MB (shared)

Power

TDP (W)

15

55 +266.7%

PL1

15 W

55 W

PL2

55 W

157 W

Architecture

Architecture

Alder Lake

Raptor Lake

Codename

Alder Lake-U

Raptor Lake-HX

Generation

Core i7 (Alder Lake-U)

Core i9 (Raptor Lake-HX Refresh)

Process Size

10 nm

10 nm

Die Size

—

257 mm²

Foundry

Intel

Intel

Memory

Memory Support

DDR4, DDR5

DDR4, DDR5

Memory Bus

Dual-channel

Dual-channel

ECC Memory

No

Yes

DDR4 Speed

3200 MT/s

3200 MT/s

DDR5 Speed

4800 MT/s

5600 MT/s

Platform

Socket

Intel BGA 1744

Intel BGA 1964

Chipsets

—

WM790, HM770

PCIe

Gen 4, 20 Lanes(CPU only)

Gen 5, 16 Lanes(CPU only)

Intel Hybrid

Hybrid Cores

P-Cores: 2 E-Cores: 8

P-Cores: 8 E-Cores: 16

E-Core Frequency

1200 MHz up to 3.5 GHz

1600 MHz up to 4.1 GHz

Graphics

Integrated Graphics

Iris Xe 96EU

UHD Graphics 770

Other

Market

Mobile

Mobile

Production Status

Active

Active

Part Number

SRLFP

SRMXF

Package

FC-BGA16F

FC-BGA16F

Tj Max

100°C

100°C

View Core i7-1255U Details View Core i9-14900HX Details