Intel Core i7 1255U vs AMD Ryzen 7 8840HS

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We compared two laptop CPUs: Intel Core i7 1255U with 10 cores 1.7GHz and AMD Ryzen 7 8840HS with 8 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 1255U 's Advantages

Lower TDP (12W vs 20W)

AMD Ryzen 7 8840HS 's Advantages

Released 1 years and 10 months late

Better graphics card performance

Higher specification of memory (LPDDR5x-7500 vs LPDDR5-5200)

Larger memory bandwidth (89.6GB/s vs 76.8GB/s)

Higher base frequency (3.3GHz vs 1.7GHz)

Larger L3 cache size (16MB vs 12MB)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 1255U

1669

AMD Ryzen 7 8840HS +1%

1692

Cinebench R23 Multi Core

Intel Core i7 1255U

8335

AMD Ryzen 7 8840HS +95%

16278

Geekbench 6 Single Core

Intel Core i7 1255U

2248

AMD Ryzen 7 8840HS +2%

2293

Geekbench 6 Multi Core

Intel Core i7 1255U

7162

AMD Ryzen 7 8840HS +61%

11597

Intel Core i7 1255U

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AMD Ryzen 7 8840HS

General Parameters

Feb 2022

Release Date

Dec 2023

Intel

Manufacturer

Amd

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Alder Lake

Core Architecture

Hawk Point

i7-1255U

Processor Number

-

BGA-1744

Socket

FP8

Iris Xe Graphics (96EU)

Integrated Graphics

Radeon 780M

-

Generation

Ryzen 7 (Zen 4 (Hawk Point))

Package

-

Transistor Count

25 billions

10 nm

Manufacturing Process

4 nm

BGA-1744

Socket

FP8

12-15 W

Power Consumption

20-30 W

55 W

Max Turbo Power Consumption

-

100°C

Peak Operating Temperature

100°C

-

Foundry

TSMC

-

Die Size

178 mm²

-

Package

FP8, FP7, FP7r2

CPU Performance

2

Performance Cores

8

4

Performance Core Threads

16

1.7 GHz

Performance Core Base Frequency

3.3 GHz

4.7 GHz

Performance Core Turbo Frequency

5.1 GHz

8

Efficiency Cores

-

8

Efficiency Core Threads

-

1.2 GHz

Efficiency Core Base Frequency

-

3.5 GHz

Efficiency Core Turbo Frequency

-

10

Total Core Count

8

12

Total Thread Count

16

100 MHz

Bus Frequency

100 MHz

17x

Multiplier

33x

80 K per core

L1 Cache

64 K per core

1280 K per core

L2 Cache

1 MB per core

12 MB shared

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-4800, DDR4-3200, LPDDR5-5200, LPDDR4x-4267

Memory Types

DDR5-5600, LPDDR5x-7500

64 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

76.8 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

Yes

Graphics Card Parameters

true

Integrated Graphics

true

300 MHz

GPU Base Frequency

1500 MHz

1250 MHz

GPU Max Dynamic Frequency

2700 MHz

768

Shader Units

768

48

Texture Units

48

24

Raster Operation Units

32

96

Execution Units

12

15 W

Power Consumption

15 W

-

Max Resolution

7680x4320 - 60 Hz

1.69 TFLOPS

Graphics Performance

8.12 TFLOPS

Miscellaneous

Intel Core i7 1255U

Official Website

AMD Ryzen 7 8840HS

4.0

PCIe Version

4.0

20

PCIe Lanes

20

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