Intel Core i7 7820X vs Intel Core i7 14700K

VS

Intel Core i7 7820X

Intel Core i7 14700K

We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Intel Core i7 14700K with 20 cores 3.4GHz . 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

Higher base frequency (3.6GHz vs 3.4GHz)

Intel Core i7 14700K 's Advantages

Released 6 years and 5 months late

Integrated graphics card

Higher specification of memory (5600 vs 2666)

Larger memory bandwidth (89.6GB/s vs 79.47GB/s)

Newer PCIe version (5.0 vs 3.0)

Larger L3 cache size (33MB vs 11MB)

More modern manufacturing process (10nm vs 14nm)

Lower TDP (125W vs 140W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 7820X

1338

Intel Core i7 14700K +62%

2174

Cinebench R23 Multi Core

Intel Core i7 7820X

13358

Intel Core i7 14700K +160%

34805

Geekbench 6 Single Core

Intel Core i7 7820X

1252

Intel Core i7 14700K +141%

3019

Geekbench 6 Multi Core

Intel Core i7 7820X

7510

Intel Core i7 14700K +171%

20412

Passmark CPU Single Core

Intel Core i7 7820X

2536

Intel Core i7 14700K +76%

4485

Passmark CPU Multi Core

Intel Core i7 7820X

17189

Intel Core i7 14700K +212%

53739

Intel Core i7 7820X

VS

Intel Core i7 14700K

General Parameters

May 2017

Release Date

Oct 2023

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Raptor Lake Refresh

i7-7820X

Processor Number

i7-14700K

LGA-2066

Socket

LGA-1700

N/A

Integrated Graphics

UHD Graphics 770

-

Generation

Core i7 (Raptor Lake Refresh)

Package

14 nm

Manufacturing Process

10 nm

140 W

Power Consumption

125 W

-

Max Turbo Power Consumption

253 W

99 °C

Peak Operating Temperature

100°C

-

Foundry

Intel

-

Die Size

257 mm²

CPU Performance

8

Performance Cores

8

16

Performance Core Threads

16

3.6 GHz

Performance Core Base Frequency

3.4 GHz

4.3 GHz

Performance Core Turbo Frequency

5.6 GHz

-

Efficiency Cores

12

-

Efficiency Core Threads

12

-

Efficiency Core Base Frequency

2.5 GHz

-

Efficiency Core Turbo Frequency

4.3 GHz

8

Total Core Count

20

16

Total Thread Count

28

100 MHz

Bus Frequency

100 MHz

36x

Multiplier

34x

64 K per core

L1 Cache

80 K per core

1 MB per core

L2 Cache

2 MB per core

11 MB shared

L3 Cache

33 MB shared

Yes

Unlocked Multiplier

Yes

-

SMP

1

Memory Parameters

DDR4-2666

Memory Types

DDR5-5600, DDR4-3200

128 GB

Max Memory Size

192 GB

4

Max Memory Channels

2

79.47 GB/s

Max Memory Bandwidth

89.6 GB/s

No

ECC Memory Support

Yes

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Base Frequency

300 MHz

-

GPU Max Dynamic Frequency

1600 MHz

-

Shader Units

256

-

Texture Units

16

-

Raster Operation Units

8

-

Execution Units

32

-

Power Consumption

15 W

-

Graphics Performance

0.78 TFLOPS

Miscellaneous

Intel Core i7 7820X

Official Website

Intel Core i7 14700K

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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