AMD Ryzen 9 7945HX vs AMD Ryzen 5 8645HS

VS

We compared two laptop CPUs: AMD Ryzen 9 7945HX with 16 cores 2.5GHz and AMD Ryzen 5 8645HS with 6 cores 4.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7945HX 's Advantages

Newer PCIe version (5.0 vs 4.0)

Larger L3 cache size (64MB vs 16MB)

AMD Ryzen 5 8645HS 's Advantages

Released 11 months late

Better graphics card performance

Higher specification of memory (LPDDR5x-7500 vs DDR5-5200)

Larger memory bandwidth (89.6GB/s vs 83.2GB/s)

Higher base frequency (4.3GHz vs 2.5GHz)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (35W vs 55W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7945HX +13%

1963

AMD Ryzen 5 8645HS

1732

Cinebench R23 Multi Core

AMD Ryzen 9 7945HX +164%

34581

AMD Ryzen 5 8645HS

13085

Geekbench 6 Single Core

AMD Ryzen 9 7945HX +30%

2906

AMD Ryzen 5 8645HS

2229

Geekbench 6 Multi Core

AMD Ryzen 9 7945HX +96%

19413

AMD Ryzen 5 8645HS

9891

Cinebench 2024 Single Core

AMD Ryzen 9 7945HX +8%

112

AMD Ryzen 5 8645HS

103

Cinebench 2024 Multi Core

AMD Ryzen 9 7945HX +137%

1669

AMD Ryzen 5 8645HS

702

AMD Ryzen 9 7945HX

VS

AMD Ryzen 5 8645HS

General Parameters

Jan 2023

Release Date

Dec 2023

Amd

Manufacturer

Amd

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Dragon Range)

Core Architecture

Hawk Point

FL1

Socket

FP8

Radeon 610M

Integrated Graphics

Radeon 760M

-

Generation

Ryzen 5 (Zen 4 (Hawk Point))

Package

13.1 billions

Transistor Count

25 billions

5 nm

Manufacturing Process

4 nm

FL1

Socket

FP8

55-75 W

Power Consumption

35-54 W

100°C

Peak Operating Temperature

100°C

-

Foundry

TSMC

-

Die Size

178 mm²

-

Package

FP8, FP7, FP7r2

CPU Performance

16

Performance Cores

6

32

Performance Core Threads

12

2.5 GHz

Performance Core Base Frequency

4.3 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

25x

Multiplier

43x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

1 MB per core

64 MB shared

L3 Cache

16 MB shared

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR5-5200

Memory Types

DDR5-5600, LPDDR5x-7500

64 GB

Max Memory Size

256 GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

1500 MHz

2200 MHz

GPU Max Dynamic Frequency

2600 MHz

128

Shader Units

384

8

Texture Units

24

4

Raster Operation Units

16

2

Execution Units

6

15 W

Power Consumption

15 W

0.49 TFLOPS

Graphics Performance

4.06 TFLOPS

Miscellaneous

AMD Ryzen 9 7945HX

Official Website

AMD Ryzen 5 8645HS

5.0

PCIe Version

4.0

28

PCIe Lanes

20

Related CPU Comparisons

1

AMD Ryzen 9 8945HS vs AMD Ryzen 9 7945HX

2

AMD Ryzen 9 7945HX vs Intel Core i9 14900HX

3

Intel Core i9 13900HX vs AMD Ryzen 9 7945HX

4

AMD Ryzen 9 7945HX vs AMD Ryzen 9 7845HX

5

AMD Ryzen 9 7945HX vs Intel Core i7 14700HX

6

Intel Core i9 13980HX vs AMD Ryzen 9 7945HX

7

AMD Ryzen 7 8845HS vs AMD Ryzen 5 8645HS

8

Intel Core i5 13450HX vs AMD Ryzen 5 8645HS

9

AMD Ryzen 9 7945HX vs Qualcomm Snapdragon X Plus

10

AMD Ryzen 9 7945HX vs AMD Ryzen 9 8945HS