Intel Core i7 7820X vs Intel Core i9 14900KF

VS

Intel Core i7 7820X

Intel Core i9 14900KF

We compared two desktop CPUs: Intel Core i7 7820X with 8 cores 3.6GHz and Intel Core i9 14900KF with 24 cores 3.2GHz . 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 3.2GHz)

Intel Core i9 14900KF 's Advantages

Released 6 years and 5 months late

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 (36MB 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 i9 14900KF +76%

2358

Cinebench R23 Multi Core

Intel Core i7 7820X

13358

Intel Core i9 14900KF +188%

38497

Geekbench 6 Single Core

Intel Core i7 7820X

1252

Intel Core i9 14900KF +153%

3176

Geekbench 6 Multi Core

Intel Core i7 7820X

7510

Intel Core i9 14900KF +198%

22411

Passmark CPU Single Core

Intel Core i7 7820X

2536

Intel Core i9 14900KF +86%

4722

Passmark CPU Multi Core

Intel Core i7 7820X

17189

Intel Core i9 14900KF +250%

60232

Intel Core i7 7820X

VS

Intel Core i9 14900KF

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

i9-14900KF

LGA-2066

Socket

LGA-1700

N/A

Integrated Graphics

No

-

Generation

Core i9 (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

3.2 GHz

4.3 GHz

Performance Core Turbo Frequency

6 GHz

-

Efficiency Cores

16

-

Efficiency Core Threads

16

-

Efficiency Core Base Frequency

2.4 GHz

-

Efficiency Core Turbo Frequency

4.4 GHz

8

Total Core Count

24

16

Total Thread Count

32

100 MHz

Bus Frequency

100 MHz

36x

Multiplier

32x

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

36 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

Miscellaneous

Intel Core i7 7820X

Official Website

Intel Core i9 14900KF

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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