AMD Ryzen 9 7845HX vs Intel Core i7 1255U

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We compared two laptop CPUs: AMD Ryzen 9 7845HX with 12 cores 3.0GHz and Intel Core i7 1255U with 10 cores 1.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7845HX's Advantages

Released 11 months late

Larger memory bandwidth (83.2GB/s vs 76.8GB/s)

Newer PCIe version (5.0 vs 4.0)

Higher base frequency (3.0GHz vs 1.7GHz)

Larger L3 cache size (64MB vs 12MB)

Intel Core i7 1255U's Advantages

Better graphics card performance

Higher specification of memory (LPDDR5-5200 vs DDR5-5200)

Lower TDP (12W vs 45W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7845HX +12%

1871

Intel Core i7 1255U

1656

Cinebench R23 Multi Core

AMD Ryzen 9 7845HX +216%

26460

Intel Core i7 1255U

8369

Geekbench 6 Single Core

AMD Ryzen 9 7845HX +15%

2600

Intel Core i7 1255U

2248

Geekbench 6 Multi Core

AMD Ryzen 9 7845HX +79%

12851

Intel Core i7 1255U

7162

Blender

AMD Ryzen 9 7845HX +392%

379

Intel Core i7 1255U

77

Geekbench 5 Single Core

AMD Ryzen 9 7845HX +26%

2052

Intel Core i7 1255U

1628

Geekbench 5 Multi Core

AMD Ryzen 9 7845HX +126%

16693

Intel Core i7 1255U

7372

AMD Ryzen 9 7845HX

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Intel Core i7 1255U

General Parameters

Jan 2023

Release Date

Feb 2022

AMD

Manufacturer

Intel

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Dragon Range)

Core Architecture

Alder Lake

-

Processor Number

i7-1255U

FL1

Socket

BGA-1744

Radeon 610M

Integrated Graphics

Iris Xe Graphics (96EU)

Package

5 nm

Manufacturing Process

10 nm

FL1

Socket

BGA-1744

45-75 W

Power Consumption

12-15 W

-

Max Turbo Power Consumption

55W

100°C

Peak Operating Temperature

100°C

CPU Performance

12

Performance Cores

2

24

Performance Core Threads

4

3.0 GHz

Performance Core Base Frequency

1.7 GHz

5.2 GHz

Performance Core Turbo Frequency

4.7 GHz

-

Efficiency Cores

8

-

Efficiency Core Threads

8

-

Efficiency Core Base Frequency

1.2 GHz

-

Efficiency Core Turbo Frequency

3.5 GHz

12

Total Core Count

10

24

Total Thread Count

12

100MHz

Bus Frequency

100MHz

30x

Multiplier

17x

64K per core

L1 Cache

80K per core

1MB per core

L2 Cache

1280K per core

64MB shared

L3 Cache

12MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR5-5200

Memory Types

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

64GB

Max Memory Size

64GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

76.8 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

True

Integrated Graphics

True

1500 MHz

GPU Base Frequency

300 MHz

2200 MHz

GPU Max Dynamic Frequency

1250 MHz

128

Shader Units

768

8

Texture Units

48

4

Raster Operation Units

24

2

Execution Units

96

15 W

Power Consumption

15 W

0.49 TFLOPS

Graphics Performance

1.69 TFLOPS

Miscellaneous

AMD Ryzen 9 7845HX

Official Website

Intel Core i7 1255U

5.0

PCIe Version

4.0

28

PCIe Lanes

20

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