AMD Ryzen 9 4900H vs AMD Ryzen 5 7645HX

VS

AMD Ryzen 9 4900H

AMD Ryzen 5 7645HX

We compared two laptop CPUs: AMD Ryzen 9 4900H with 8 cores 3.3GHz and AMD Ryzen 5 7645HX with 6 cores 4.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 4900H 's Advantages

Lower TDP (54W vs 75W)

AMD Ryzen 5 7645HX 's Advantages

Released 2 years and 10 months late

Higher specification of memory (5200 vs 4266)

Larger memory bandwidth (83.2GB/s vs 68.27GB/s)

Newer PCIe version (5.0 vs 3.0)

Higher base frequency (4.0GHz vs 3.3GHz)

Larger L3 cache size (32MB vs 8MB)

More modern manufacturing process (5nm vs 7nm)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 4900H

1265

AMD Ryzen 5 7645HX +42%

1800

Cinebench R23 Multi Core

AMD Ryzen 9 4900H

11230

AMD Ryzen 5 7645HX +24%

13954

Geekbench 6 Single Core

AMD Ryzen 9 4900H

1678

AMD Ryzen 5 7645HX +62%

2720

Geekbench 6 Multi Core

AMD Ryzen 9 4900H

6103

AMD Ryzen 5 7645HX +95%

11906

Geekbench 5 Single Core

AMD Ryzen 9 4900H

1210

AMD Ryzen 5 7645HX +56%

1895

Geekbench 5 Multi Core

AMD Ryzen 9 4900H

7541

AMD Ryzen 5 7645HX +47%

11141

AMD Ryzen 9 4900H

VS

AMD Ryzen 5 7645HX

General Parameters

Mar 2020

Release Date

Jan 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 2

Core Architecture

Zen 4 (Dragon Range)

FP6

Socket

FL1

Radeon Vega 8

Integrated Graphics

Radeon 610M

Package

7 nm

Manufacturing Process

5 nm

35-54 W

Power Consumption

45-75 W

105 °C

Peak Operating Temperature

100°C

CPU Performance

8

Performance Cores

6

16

Performance Core Threads

12

3.3 GHz

Performance Core Base Frequency

4.0 GHz

4.4 GHz

Performance Core Turbo Frequency

5 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

40x

-

L1 Cache

64 K per core

512 K per core

L2 Cache

1 MB per core

8 MB shared

L3 Cache

32 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-3200, LPDDR4X-4266

Memory Types

DDR5-5200

64 GB

Max Memory Size

64 GB

4

Max Memory Channels

2

68.27 GB/s

Max Memory Bandwidth

83.2 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

1500 MHz

1750 MHz

GPU Max Dynamic Frequency

2200 MHz

512

Shader Units

128

32

Texture Units

8

Raster Operation Units

4

-

Execution Units

2

15 W

Power Consumption

15 W

-

Graphics Performance

0.49 TFLOPS

Miscellaneous

AMD Ryzen 9 4900H

Official Website

AMD Ryzen 5 7645HX

3.0

PCIe Version

5.0

16

PCIe Lanes

28

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