AMD Ryzen 7 7840U vs Intel Core i7 8705G

VS

We compared two laptop CPUs: AMD Ryzen 7 7840U with 8 cores 3.3GHz and Intel Core i7 8705G with 4 cores 3.1GHz . 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 5 years and 4 months late

Integrated graphics card

Higher specification of memory (LPDDR5x-7500 vs DDR4-2400)

Newer PCIe version (4.0 vs 3.0)

Higher base frequency (3.3GHz vs 3.1GHz)

Larger L3 cache size (16MB vs 8MB)

Score

Benchmark

Cinebench R23 Single Core

AMD Ryzen 7 7840U +58%

1771

Intel Core i7 8705G

1116

Cinebench R23 Multi Core

AMD Ryzen 7 7840U +164%

12992

Intel Core i7 8705G

4907

Geekbench 6 Single Core

AMD Ryzen 7 7840U +117%

2401

Intel Core i7 8705G

1106

Geekbench 6 Multi Core

AMD Ryzen 7 7840U +254%

10983

Intel Core i7 8705G

3101

Geekbench 5 Single Core

AMD Ryzen 7 7840U +86%

1907

Intel Core i7 8705G

1020

Geekbench 5 Multi Core

AMD Ryzen 7 7840U +169%

10387

Intel Core i7 8705G

3854

AMD Ryzen 7 7840U

VS

Intel Core i7 8705G

General Parameters

May 2023

Release Date

Jan 2018

AMD

Manufacturer

Intel

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Phoenix)

Core Architecture

Kaby Lake G

-

Processor Number

i7-8705G

FP8

Socket

BGA-2270

Radeon 780M

Integrated Graphics

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

14 nm

FP8

Socket

BGA-2270

15-30 W

Power Consumption

0 W

100°C

Peak Operating Temperature

100 °C

CPU Performance

8

Performance Cores

4

16

Performance Core Threads

8

3.3 GHz

Performance Core Base Frequency

3.1 GHz

5.1 GHz

Performance Core Turbo Frequency

4.1 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

33x

Multiplier

31x

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

16 MB shared

L3 Cache

8 MB shared

No

Unlocked Multiplier

No

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR4-2400

256 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

-

Max Memory Bandwidth

37.5 GB/s

Yes

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

1500 MHz

GPU Base Frequency

-

2700 MHz

GPU Max Dynamic Frequency

-

768

Shader Units

-

48

Texture Units

-

32

Raster Operation Units

-

12

Execution Units

-

15 W

Power Consumption

-

7680x4320 - 60 Hz

Max Resolution

-

8.12 TFLOPS

Graphics Performance

-

Miscellaneous

AMD Ryzen 7 7840U

Official Website

Intel Core i7 8705G

4.0

PCIe Version

3.0

20

PCIe Lanes

8

-

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

Related CPU Comparisons

1

AMD Ryzen 7 8840U vs AMD Ryzen 7 7840U

2

AMD Ryzen 7 7840U vs Intel Core Ultra 7 155H

3

AMD Ryzen 7 7840U vs AMD Ryzen Z1 Extreme

4

AMD Ryzen 7 7840U vs AMD Ryzen 7 7840HS

5

AMD Ryzen 7 7840U vs AMD Ryzen 7 6800U

6

AMD Ryzen 7 7840U vs AMD Ryzen 7 Pro 6850U

7

AMD Ryzen 7 7840U vs Intel Core Ultra 5 125U

8

Intel Core i7 1260U vs Intel Core i7 8705G

9

AMD Ryzen 7 7840U vs AMD Ryzen 7 Pro 5850U

10

AMD Ryzen 7 7840U vs Intel Core i7 1195G7