AMD Ryzen 7 8840U vs Intel Core i7 8705G

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We compared two laptop CPUs: AMD Ryzen 7 8840U 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 8840U 's Advantages

Released 5 years and 11 months late

Integrated graphics card

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

Larger memory bandwidth (89.6GB/s vs 37.5GB/s)

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 8840U +58%

1766

Intel Core i7 8705G

1116

Cinebench R23 Multi Core

AMD Ryzen 7 8840U +164%

13000

Intel Core i7 8705G

4907

Geekbench 6 Single Core

AMD Ryzen 7 8840U +123%

2468

Intel Core i7 8705G

1106

Geekbench 6 Multi Core

AMD Ryzen 7 8840U +270%

11498

Intel Core i7 8705G

3101

AMD Ryzen 7 8840U

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Intel Core i7 8705G

General Parameters

Dec 2023

Release Date

Jan 2018

Amd

Manufacturer

Intel

Laptop

Type

Laptop

x86-64

Instruction Set

x86-64

Zen 4 (Hawk Point)

Core Architecture

Kaby Lake G

-

Processor Number

i7-8705G

FP8

Socket

BGA-2270

Radeon 780M

Integrated Graphics

-

Ryzen 7 (Zen 4 (Hawk Point))

Generation

-

Package

25 billions

Transistor Count

-

4 nm

Manufacturing Process

14 nm

FP8

Socket

BGA-2270

15-30 W

Power Consumption

0 W

-

Max Turbo Power Consumption

-

100°C

Peak Operating Temperature

100 °C

TSMC

Foundry

-

178 mm²

Die Size

-

I/O Process Size

-

I/O Die Size

-

FP8, FP7, FP7r2

Package

-

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

-

Efficiency Cores

-

Efficiency Core Threads

-

Efficiency Core Base Frequency

-

Efficiency Core Turbo Frequency

-

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

CCDs

-

Cores per CCD

-

1

SMP

-

AVX-512 FMA Ports

-

HBM

-

Memory Parameters

DDR5-5600, LPDDR5x-7500

Memory Types

DDR4-2400

256 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

89.6 GB/s

Max Memory Bandwidth

37.5 GB/s

No

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

-

AI Accelerator

-

NPU

-

Theoretical performance

-

Miscellaneous

AMD Ryzen 7 8840U

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

UPI Links

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