AMD Ryzen 9 8940H vs AMD Ryzen 5 6600U

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We compared two laptop CPUs: AMD Ryzen 9 8940H with 8 cores 4.0GHz and AMD Ryzen 5 6600U with 6 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 9 8940H 's Advantages

Released 2 years late

Better graphics card performance

Larger memory bandwidth (89.6GB/s vs 76.8GB/s)

Higher base frequency (4.0GHz vs 2.9GHz)

More modern manufacturing process (4nm vs 6nm)

AMD Ryzen 5 6600U 's Advantages

Higher specification of memory (LPDDR5-6400 vs DDR5-5600)

Lower TDP (15W vs 35W)

Score

Benchmark

Geekbench 6 Single Core

AMD Ryzen 9 8940H +43%

2512

AMD Ryzen 5 6600U

1755

Geekbench 6 Multi Core

AMD Ryzen 9 8940H +90%

13104

AMD Ryzen 5 6600U

6878

AMD Ryzen 9 8940H

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AMD Ryzen 5 6600U

General Parameters

Jan 2024

Release Date

Jan 2022

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Phoenix)

Core Architecture

Rembrandt

FP8

Socket

FP7

Radeon 780M

Integrated Graphics

Radeon 660M

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

6 nm

FP8

Socket

FP7

35-54 W

Power Consumption

15-28 W

100°C

Peak Operating Temperature

95 °C

CPU Performance

8

Performance Cores

6

16

Performance Core Threads

12

4.0 GHz

Performance Core Base Frequency

2.9 GHz

5.2 GHz

Performance Core Turbo Frequency

4.5 GHz

8

Total Core Count

6

16

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

40x

Multiplier

29x

64 K per core

L1 Cache

64 K per core

8 MB

L2 Cache

512 K per core

16 MB

L3 Cache

16 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR5-5600

Memory Types

DDR5-4800, LPDDR5-6400

256 GB

Max Memory Size

-

2

Max Memory Channels

4

89.6 GB/s

Max Memory Bandwidth

76.8 GB/s

Graphics Card Parameters

true

Integrated Graphics

true

1500 MHz

GPU Base Frequency

1500 MHz

2800 MHz

GPU Max Dynamic Frequency

1900 MHz

768

Shader Units

384

48

Texture Units

24

32

Raster Operation Units

16

12

Execution Units

6

15 W

Power Consumption

15 W

7680x4320 - 60 Hz

Max Resolution

-

8.12 TFLOPS

Graphics Performance

1.46 TFLOPS

Miscellaneous

AMD Ryzen 9 8940H

Official Website

AMD Ryzen 5 6600U

4.0

PCIe Version

4.0

20

PCIe Lanes

-

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