Home Comparison Intel Core i9 9900KF vs Intel Core i9 9940X

Intel Core i9 9900KF vs Intel Core i9 9940X

Intel Core i9 9900KF
VS
Intel Core i9 9940X
Intel Core i9 9900KF
Intel Core i9 9940X
We compared two desktop CPUs: Intel Core i9 9900KF with 8 cores 3.6GHz and Intel Core i9 9940X with 14 cores 3.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i9 9900KF 's Advantages
Higher base frequency (3.6GHz vs 3.3GHz)
Lower TDP (95W vs 165W)
Intel Core i9 9940X 's Advantages
Larger memory bandwidth (85GB/s vs 41.6GB/s)
Larger L3 cache size (20MB vs 16MB)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i9 9900KF +2%
1260
Intel Core i9 9940X
1228
Cinebench R23 Multi Core
Intel Core i9 9900KF
12606
Intel Core i9 9940X +21%
15351
Geekbench 6 Single Core
Intel Core i9 9900KF +21%
1612
Intel Core i9 9940X
1328
Geekbench 6 Multi Core
Intel Core i9 9900KF
7648
Intel Core i9 9940X +27%
9787
Geekbench 5 Single Core
Intel Core i9 9900KF +9%
1300
Intel Core i9 9940X
1189
Geekbench 5 Multi Core
Intel Core i9 9900KF
8856
Intel Core i9 9940X +62%
14374
Passmark CPU Single Core
Intel Core i9 9900KF +12%
2945
Intel Core i9 9940X
2608
Passmark CPU Multi Core
Intel Core i9 9900KF
18462
Intel Core i9 9940X +53%
28355
Intel Core i9 9900KF
VS
Intel Core i9 9940X

General Parameters

Jan 2019
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Skylake
i9-9900KF
Processor Number
i9-9940X
LGA-1151
Socket
LGA-2066
N/A
Integrated Graphics
N/A

Package

14 nm
Manufacturing Process
14 nm
95 W
Power Consumption
165 W
100 °C
Peak Operating Temperature
88 °C

CPU Performance

8
Performance Cores
14
16
Performance Core Threads
28
3.6 GHz
Performance Core Base Frequency
3.3 GHz
5 GHz
Performance Core Turbo Frequency
4.4 GHz
8
Total Core Count
14
16
Total Thread Count
28
100 MHz
Bus Frequency
100 MHz
36x
Multiplier
33x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
16 MB shared
L3 Cache
20 MB shared
Yes
Unlocked Multiplier
Yes

Memory Parameters

DDR4-2666
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
4
41.6 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No

Miscellaneous

Intel Core i9 9900KF
Official Website
Intel Core i9 9940X
3.0
PCIe Version
3.0
16
PCIe Lanes
44
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512

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