Home Comparison Intel Core i7 6800K vs Intel Core i9 9940X

Intel Core i7 6800K vs Intel Core i9 9940X

Intel Core i7 6800K
VS
Intel Core i9 9940X
Intel Core i7 6800K Intel Core i9 9940X
We compared two desktop CPUs: Intel Core i7 6800K with 6 cores 3.4GHz 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 i7 6800K 's Advantages
Higher base frequency (3.4GHz vs 3.3GHz)
Lower TDP (140W vs 165W)
Intel Core i9 9940X 's Advantages
Released 2 years and 5 months late
Higher specification of memory (DDR4-2666 vs DDR4-2133)
Larger memory bandwidth (85GB/s vs 76.8GB/s)
Larger L3 cache size (20MB vs 15MB)

Score

Benchmark

Cinebench R23 Single Core
Intel Core i7 6800K
951
Intel Core i9 9940X +29%
1228
Cinebench R23 Multi Core
Intel Core i7 6800K
6632
Intel Core i9 9940X +131%
15351
Geekbench 6 Single Core
Intel Core i7 6800K +2%
1363
Intel Core i9 9940X
1328
Geekbench 6 Multi Core
Intel Core i7 6800K
6495
Intel Core i9 9940X +50%
9787
Geekbench 5 Single Core
Intel Core i7 6800K
922
Intel Core i9 9940X +28%
1189
Geekbench 5 Multi Core
Intel Core i7 6800K
5537
Intel Core i9 9940X +159%
14374
Passmark CPU Single Core
Intel Core i7 6800K
2269
Intel Core i9 9940X +14%
2608
Passmark CPU Multi Core
Intel Core i7 6800K
10740
Intel Core i9 9940X +164%
28355
Intel Core i7 6800K
VS
Intel Core i9 9940X

General Parameters

May 2016
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Broadwell E
Core Architecture
Skylake
i7-6800K
Processor Number
i9-9940X
LGA-2011-3
Socket
LGA-2066
N/A
Integrated Graphics
N/A

Package

14 nm
Manufacturing Process
14 nm
LGA-2011-3
Socket
LGA-2066
140 W
Power Consumption
165 W
-
Peak Operating Temperature
88 °C

CPU Performance

6
Performance Cores
14
12
Performance Core Threads
28
3.4 GHz
Performance Core Base Frequency
3.3 GHz
3.6 GHz
Performance Core Turbo Frequency
4.4 GHz
6
Total Core Count
14
12
Total Thread Count
28
100 MHz
Bus Frequency
100 MHz
34x
Multiplier
33x
32 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
15 MB shared
L3 Cache
20 MB shared
No
Unlocked Multiplier
Yes

Memory Parameters

DDR4-2133
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
4
76.8 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No

Miscellaneous

Intel Core i7 6800K
Official Website
Intel Core i9 9940X
3.0
PCIe Version
3.0
28
PCIe Lanes
44
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512

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