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 i9-10900K

CORE STATE Comet Lake

CORE SPECS 10 Cores / 20 Threads

CLOCK SPEED 3.7 Base / 5.3 GHz Turbo

CACHE 20 MB (shared)

MAX TDP 125W

ARCHITECTURE Comet Lake

nm

PROCESS 14 nm

LAUNCH DATE 2020

PERFORMANCE BENCHMARKS

cinebench_cinebench_r15_multicore

1,133

1,923

cinebench_cinebench_r15_singlecore

159

271

cinebench_cinebench_r20_multicore

4,722

8,013

cinebench_cinebench_r20_singlecore

666

1,131

cinebench_cinebench_r23_multicore

11,244

19,079

cinebench_cinebench_r23_singlecore

1,587

2,693

passmark_data_compression

147,320

375,336

passmark_data_encryption

9,262

7,796

passmark_extended_instructions

8,231

24,620

passmark_find_prime_numbers

40

63

passmark_floating_point_math

32,618

53,123

passmark_integer_math

48,498

85,404

passmark_multithread

13,234

22,452

passmark_physics

789

1,029

passmark_random_string_sorting

16,934

46,389

passmark_single_thread

3,192

3,113

passmark_singlethread

3,192

3,113

3dmark_16_threads

N/A

8,257

3dmark_2_threads

N/A

1,688

3dmark_4_threads

N/A

3,313

3dmark_8_threads

N/A

6,221

3dmark_max_threads

N/A

8,938

3dmark_single_thread

N/A

851

geekbench_multicore

N/A

9,141

geekbench_singlecore

N/A

1,780

DETAILED SPECIFICATIONS

SPECIFICATION

i7-1255U

i9-10900K

Core Specs

Cores

10

10 0.0%

Threads

12

20 +66.7%

Base Clock (GHz)

1,700

3.7 -99.8%

Boost Clock (GHz)

4.7

5.3 +12.8%

Frequency (GHz)

1,700

3.7 -99.8%

Turbo Clock (GHz)

4.7

5.3 +12.8%

Multiplier

17

37 +117.6%

SMP CPUs

1

1 0.0%

Cache

L1 Cache

80 KB (per core)

64 KB (per core)

L2 Cache

1.25 MB (per core)

256 KB (per core)

L3 Cache

12 MB (shared)

20 MB (shared)

Power

TDP (W)

15

125 +733.3%

PL1

15 W

125 W

PL2

55 W

250 W

Architecture

Architecture

Alder Lake

Comet Lake

Codename

Alder Lake-U

Comet Lake

Generation

Core i7 (Alder Lake-U)

Core i9 (Comet Lake)

Process Size

10 nm

14 nm

Die Size

—

206 mm²

Foundry

Intel

Intel

Memory

Memory Support

DDR4, DDR5

DDR4

Memory Bus

Dual-channel

Dual-channel

Memory Bandwidth

—

46.9 GB/s

ECC Memory

No

No

DDR4 Speed

3200 MT/s

—

DDR5 Speed

4800 MT/s

—

Platform

Socket

Intel BGA 1744

Intel Socket 1200

Chipsets

—

H410, B460, H470, Z490

PCIe

Gen 4, 20 Lanes(CPU only)

Gen 3, 16 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 630

Other

Market

Mobile

Desktop

Production Status

Active

End-of-life

Launch Price

—

$547

Part Number

SRLFP

SRH91

Package

FC-BGA16F

FC-LGA1200

Tj Max

100°C

100°C

View Core i7-1255U Details View Core i9-10900K Details