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 i9-12900T

CORE STATE Alder Lake-S

CORE SPECS 16 Cores / 24 Threads

CLOCK SPEED 1400 Base / 4.9 GHz Turbo

CACHE 30 MB (shared)

MAX TDP 35W

ARCHITECTURE Alder Lake

nm

PROCESS 10 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

1,133

2,536

cinebench_cinebench_r15_singlecore

159

357

cinebench_cinebench_r20_multicore

4,722

10,567

cinebench_cinebench_r20_singlecore

666

1,491

cinebench_cinebench_r23_multicore

11,244

25,160

cinebench_cinebench_r23_singlecore

1,587

3,552

passmark_data_compression

147,320

345,021

passmark_data_encryption

9,262

20,750

passmark_extended_instructions

8,231

20,054

passmark_find_prime_numbers

40

116

passmark_floating_point_math

32,618

75,741

passmark_integer_math

48,498

108,211

passmark_multithread

13,234

29,601

passmark_physics

789

1,811

passmark_random_string_sorting

16,934

39,771

passmark_single_thread

3,192

3,810

passmark_singlethread

3,192

3,810

geekbench_multicore

N/A

11,615

geekbench_singlecore

N/A

2,259

DETAILED SPECIFICATIONS

SPECIFICATION

i7-1255U

i9-12900T

Core Specs

Cores

10

16 +60.0%

Threads

12

24 +100.0%

Base Clock (GHz)

1,700

1,400 -17.6%

Boost Clock (GHz)

4.7

4.9 +4.3%

Frequency (GHz)

1,700

1,400 -17.6%

Turbo Clock (GHz)

4.7

4.9 +4.3%

Multiplier

17

14 -17.6%

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)

30 MB (shared)

Power

TDP (W)

15

35 +133.3%

PL1

15 W

35W

PL2

55 W

106W

Architecture

Architecture

Alder Lake

Alder Lake

Codename

Alder Lake-U

Alder Lake-S

Generation

Core i7 (Alder Lake-U)

Core i9 (Alder Lake-S)

Process Size

10 nm

10 nm

Die Size

—

215 mm²

Foundry

Intel

Intel

Memory

Memory Support

DDR4, DDR5

DDR4, DDR5

Memory Bus

Dual-channel

Dual-channel

ECC Memory

No

No

DDR4 Speed

3200 MT/s

3200 MT/s

DDR5 Speed

4800 MT/s

4800 MT/s

Platform

Socket

Intel BGA 1744

Intel Socket 1700

Chipsets

—

Z690, H670, B660, H610

PCIe

Gen 4, 20 Lanes(CPU only)

Gen 5, 20 Lanes(CPU only)

Intel Hybrid

Hybrid Cores

P-Cores: 2 E-Cores: 8

P-Cores: 8 E-Cores: 8

E-Core Frequency

1200 MHz up to 3.5 GHz

1000 MHz up to 3.6 GHz

Graphics

Integrated Graphics

Iris Xe 96EU

UHD Graphics 770

Other

Market

Mobile

Desktop

Production Status

Active

Active

Launch Price

—

$489

Part Number

SRLFP

SRL4M

Package

FC-BGA16F

FC-LGA16A

Tj Max

100°C

100°C

View Core i7-1255U Details View Core i9-12900T Details