Intel Core i9 9940X vs Intel Core i7 6900K
We compared two desktop CPUs: Intel Core i9 9940X with 14 cores 3.3GHz and Intel Core i7 6900K with 8 cores 3.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i9 9940X 's Advantages
Released 2 years and 5 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (85GB/s vs 76.8GB/s)
Higher base frequency (3.3GHz vs 3.2GHz)
Intel Core i7 6900K 's Advantages
Lower TDP (140W vs 165W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i9 9940X
+6%
1228
Intel Core i7 6900K
1151
Cinebench R23 Multi Core
Intel Core i9 9940X
+35%
15351
Intel Core i7 6900K
11326
Geekbench 6 Single Core
Intel Core i9 9940X
+3%
1328
Intel Core i7 6900K
1286
Geekbench 6 Multi Core
Intel Core i9 9940X
+31%
9787
Intel Core i7 6900K
7470
Geekbench 5 Single Core
Intel Core i9 9940X
+23%
1189
Intel Core i7 6900K
961
Geekbench 5 Multi Core
Intel Core i9 9940X
+96%
14374
Intel Core i7 6900K
7327
Passmark CPU Single Core
Intel Core i9 9940X
+12%
2608
Intel Core i7 6900K
2310
Passmark CPU Multi Core
Intel Core i9 9940X
+98%
28355
Intel Core i7 6900K
14258
General Parameters
Oct 2018
Release Date
May 2016
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Skylake
Core Architecture
Broadwell E
i9-9940X
Processor Number
i7-6900K
LGA-2066
Socket
LGA-2011-3
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
165 W
Power Consumption
140 W
88 °C
Peak Operating Temperature
-
CPU Performance
14
Performance Cores
8
28
Performance Core Threads
16
3.3 GHz
Performance Core Base Frequency
3.2 GHz
4.4 GHz
Performance Core Turbo Frequency
3.7 GHz
14
Total Core Count
8
28
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
33x
Multiplier
32x
64 K per core
L1 Cache
64 K per core
1 MB per core
L2 Cache
256 K per core
20 MB shared
L3 Cache
20 MB shared
Yes
Unlocked Multiplier
No
Memory Parameters
DDR4-2666
Memory Types
DDR4-2133
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
4
85 GB/s
Max Memory Bandwidth
76.8 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
44
PCIe Lanes
40
SSE4.1, SSE4.2, AVX-2, AVX-512
Extended Instruction Set
-
