AMD Ryzen 9 7940HX vs AMD Ryzen 7 7840HS

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We compared two laptop CPUs: AMD Ryzen 9 7940HX with 16 cores 2.4GHz and AMD Ryzen 7 7840HS with 8 cores 3.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 7940HX's Advantages

Released 1 years late

Newer PCIe version (5.0 vs 4.0)

Larger L3 cache size (64MB vs 16MB)

AMD Ryzen 7 7840HS's Advantages

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 (3.8GHz vs 2.4GHz)

More modern manufacturing process (4nm vs 5nm)

Lower TDP (35W vs 55W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 9 7940HX +5%

1882

AMD Ryzen 7 7840HS

1789

Cinebench R23 Multi Core

AMD Ryzen 9 7940HX +95%

33284

AMD Ryzen 7 7840HS

16992

Geekbench 6 Single Core

AMD Ryzen 9 7940HX +8%

2688

AMD Ryzen 7 7840HS

2477

Geekbench 6 Multi Core

AMD Ryzen 9 7940HX +28%

15655

AMD Ryzen 7 7840HS

12153

AMD Ryzen 9 7940HX

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AMD Ryzen 7 7840HS

General Parameters

Jan 2024

Release Date

Jan 2023

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Dragon Range)

Core Architecture

Zen 4 (Phoenix)

AMD Socket FL1

Socket

FP8

Radeon 610M

Integrated Graphics

Radeon 780M

Package

13.14 billions

Transistor Count

25 billions

5 nm

Manufacturing Process

4 nm

AMD Socket FL1

Socket

FP8

55 W

Power Consumption

35-54 W

100°C

Peak Operating Temperature

100°C

CPU Performance

16

Performance Cores

8

32

Performance Core Threads

16

2.4 GHz

Performance Core Base Frequency

3.8 GHz

5.2 GHz

Performance Core Turbo Frequency

5.1 GHz

16

Total Core Count

8

32

Total Thread Count

16

100MHz

Bus Frequency

100MHz

24

Multiplier

38x

64K per core

L1 Cache

64K per core

1MB per core

L2 Cache

1MB per core

64MB

L3 Cache

16MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR5-5200

Memory Types

DDR5-5600, LPDDR5x-7500

64GB

Max Memory Size

256GB

2

Max Memory Channels

2

83.2 GB/s

Max Memory Bandwidth

89.6 GB/s

Graphics Card Parameters

True

Integrated Graphics

True

400 MHz

GPU Base Frequency

1500 MHz

2200 MHz

GPU Max Dynamic Frequency

2700 MHz

128

Shader Units

768

8

Texture Units

48

4

Raster Operation Units

32

2

Execution Units

12

15 W

Power Consumption

15 W

-

Max Resolution

7680x4320 - 60 Hz

0.563 TFLOPS

Graphics Performance

10 TFLOPS

Miscellaneous

Official Website

AMD Ryzen 7 7840HS

5.0

PCIe Version

4.0

28

PCIe Lanes

20

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