AMD Ryzen 9 7945HX3D vs AMD Ryzen 5 7645HX

VS

AMD Ryzen 9 7945HX3D

AMD Ryzen 5 7645HX

We compared two laptop CPUs: AMD Ryzen 9 7945HX3D with 16 cores 2.3GHz 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 7945HX3D 's Advantages

Released 6 months late

Larger L3 cache size (128MB vs 32MB)

Lower TDP (55W vs 75W)

AMD Ryzen 5 7645HX 's Advantages

Newer PCIe version (5.0 vs 5)

Higher base frequency (4.0GHz vs 2.3GHz)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7945HX3D +7%

1940

AMD Ryzen 5 7645HX

1800

Cinebench R23 Multi Core

AMD Ryzen 9 7945HX3D +138%

33329

AMD Ryzen 5 7645HX

13954

Geekbench 6 Single Core

AMD Ryzen 9 7945HX3D +2%

2783

AMD Ryzen 5 7645HX

2720

Geekbench 6 Multi Core

AMD Ryzen 9 7945HX3D +35%

16080

AMD Ryzen 5 7645HX

11906

Geekbench 5 Single Core

AMD Ryzen 9 7945HX3D +12%

2138

AMD Ryzen 5 7645HX

1895

Geekbench 5 Multi Core

AMD Ryzen 9 7945HX3D +71%

19153

AMD Ryzen 5 7645HX

11141

AMD Ryzen 9 7945HX3D

VS

AMD Ryzen 5 7645HX

General Parameters

Jul 2023

Release Date

Jan 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

-

Instruction Set

x86-64

Dragon Range

Core Architecture

Zen 4 (Dragon Range)

AMD Socket FL1

Socket

FL1

Radeon 610M

Integrated Graphics

Radeon 610M

Ryzen 9 (Zen 4 (Dragon Range))

Generation

-

Package

17.84 billions

Transistor Count

-

5 nm

Manufacturing Process

5 nm

55 W

Power Consumption

45-75 W

89 °C

Peak Operating Temperature

100°C

TSMC

Foundry

-

2x71 mm²

Die Size

-

6 nm

I/O Process Size

-

122 mm²

I/O Die Size

-

CPU Performance

-

Performance Cores

6

-

Performance Core Threads

12

2.3 GHz

Performance Core Base Frequency

4.0 GHz

5.4 GHz

Performance Core Turbo Frequency

5 GHz

16

Total Core Count

6

32

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

23.0

Multiplier

40x

64 KB per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

128 MB shared

L3 Cache

32 MB shared

Yes

Unlocked Multiplier

Yes

1

SMP

-

Memory Parameters

DDR5-5200

Memory Types

DDR5-5200

64 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

83.2 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

2200 MHz

GPU Max Dynamic Frequency

2200 MHz

-

Shader Units

128

-

Texture Units

8

-

Raster Operation Units

4

2

Execution Units

2

-

Power Consumption

15 W

0.49 TFLOPS

Graphics Performance

0.49 TFLOPS

Miscellaneous

AMD Ryzen 9 7945HX3D

Official Website

AMD Ryzen 5 7645HX

5

PCIe Version

5.0

28

PCIe Lanes

28

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