AMD Ryzen 7 7840U vs AMD Ryzen 9 4900HS

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We compared two laptop CPUs: AMD Ryzen 7 7840U with 8 cores 3.3GHz and AMD Ryzen 9 4900HS with 8 cores 3.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

AMD Ryzen 7 7840U's Advantages

Released 3 years and 2 months late

Higher specification of memory (LPDDR5x-7500 vs LPDDR4X-4266)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.3GHz vs 3.0GHz)

Larger L3 cache size (16MB vs 8MB)

More modern manufacturing process (4nm vs 7nm)

Lower TDP (15W vs 35W)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 7840U +40%

1742

AMD Ryzen 9 4900HS

1242

Cinebench R23 Multi Core

AMD Ryzen 7 7840U +16%

12833

AMD Ryzen 9 4900HS

10970

Geekbench 6 Single Core

AMD Ryzen 7 7840U +70%

2401

AMD Ryzen 9 4900HS

1407

Geekbench 6 Multi Core

AMD Ryzen 7 7840U +121%

10983

AMD Ryzen 9 4900HS

4967

Blender

AMD Ryzen 7 7840U +40%

234

AMD Ryzen 9 4900HS

166

Geekbench 5 Single Core

AMD Ryzen 7 7840U +63%

1907

AMD Ryzen 9 4900HS

1166

Geekbench 5 Multi Core

AMD Ryzen 7 7840U +45%

10387

AMD Ryzen 9 4900HS

7120

AMD Ryzen 7 7840U

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AMD Ryzen 9 4900HS

General Parameters

May 2023

Release Date

Mar 2020

AMD

Manufacturer

AMD

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Phoenix)

Core Architecture

Zen 2

FP8

Socket

FP6

Radeon 780M

Integrated Graphics

Radeon Vega 8

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

7 nm

FP8

Socket

FP6

15-30 W

Power Consumption

35 W

100°C

Peak Operating Temperature

105 °C

CPU Performance

8

Performance Cores

8

16

Performance Core Threads

16

3.3 GHz

Performance Core Base Frequency

3.0 GHz

5.1 GHz

Performance Core Turbo Frequency

4.3 GHz

8

Total Core Count

8

16

Total Thread Count

16

100MHz

Bus Frequency

100MHz

33x

Multiplier

30x

64K per core

L1 Cache

-

1MB per core

L2 Cache

512K per core

16MB shared

L3 Cache

8MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR4-3200, LPDDR4X-4266

256GB

Max Memory Size

32GB

2

Max Memory Channels

2

-

Max Memory Bandwidth

68.27 GB/s

Yes

ECC Memory Support

Yes

Graphics Card Parameters

True

Integrated Graphics

True

1500 MHz

GPU Base Frequency

-

2700 MHz

GPU Max Dynamic Frequency

1750 MHz

768

Shader Units

512

48

Texture Units

32

Raster Operation Units

8

12

Execution Units

-

15 W

Power Consumption

15 W

7680x4320 - 60 Hz

Max Resolution

-

8.12 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 7 7840U

Official Website

AMD Ryzen 9 4900HS

4.0

PCIe Version

3.0

20

PCIe Lanes

16

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