Intel Core i7 7820X vs Loongson LS3A6000

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We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Loongson LS3A6000 with 4 cores 2.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 7820X 's Advantages

Larger memory bandwidth (79.47GB/s vs 42GB/s)

Higher base frequency (3.6GHz vs 2.0GHz)

Loongson LS3A6000 's Advantages

Released 6 years and 6 months late

Higher specification of memory (DDR4-3200 vs DDR4-2666)

Newer PCIe version (5.0 vs 3.0)

Larger L3 cache size (16MB vs 11MB)

Lower TDP (50W vs 140W)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i7 7820X +453%

1252

Loongson LS3A6000

226

Geekbench 6 Multi Core

Intel Core i7 7820X +745%

7510

Loongson LS3A6000

888

Intel Core i7 7820X

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Loongson LS3A6000

General Parameters

May 2017

Release Date

Nov 2023

Intel

Manufacturer

Loongson

Desktop

Type

Desktop

x86-64

Instruction Set

LoongArch

Skylake

Core Architecture

LA664

i7-7820X

Processor Number

LS3A6000

LGA-2066

Socket

FCBGA-1190

N/A

Integrated Graphics

No

-

Generation

3A6000

Package

14 nm

Manufacturing Process

12 nm

LGA-2066

Socket

FCBGA-1190

140 W

Power Consumption

50 W

99 °C

Peak Operating Temperature

70°C

-

Foundry

Loongson

-

Die Size

257 mm²

-

Package

FCBGA-1190

CPU Performance

8

Performance Cores

4

16

Performance Core Threads

8

3.6 GHz

Performance Core Base Frequency

2.0 GHz

4.3 GHz

Performance Core Turbo Frequency

2.5 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

36x

Multiplier

20

64 K per core

L1 Cache

128 K per core

1 MB per core

L2 Cache

1 MB

11 MB shared

L3 Cache

16 MB

Yes

Unlocked Multiplier

No

-

SMP

1

Memory Parameters

DDR4-2666

Memory Types

DDR4-3200

128 GB

Max Memory Size

32 GB

4

Max Memory Channels

2

79.47 GB/s

Max Memory Bandwidth

42 GB/s

No

ECC Memory Support

Yes

Miscellaneous

Intel Core i7 7820X

Official Website

Loongson LS3A6000

3.0

PCIe Version

5.0

28

PCIe Lanes

20

SSE4.1, SSE4.2, AVX-2, AVX-512

Extended Instruction Set

-

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