Intel Core i7 6900K vs Intel Core i5 9400F
We compared two desktop CPUs: Intel Core i7 6900K with 8 cores 3.2GHz and Intel Core i5 9400F with 6 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i7 6900K 's Advantages
Larger memory bandwidth (76.8GB/s vs 41.6GB/s)
Higher base frequency (3.2GHz vs 2.9GHz)
Larger L3 cache size (20MB vs 9MB)
Intel Core i5 9400F 's Advantages
Released 2 years and 8 months late
Higher specification of memory (2666 vs 2133)
Lower TDP (65W vs 140W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 6900K
+13%
1151
Intel Core i5 9400F
1014
Cinebench R23 Multi Core
Intel Core i7 6900K
+103%
11326
Intel Core i5 9400F
5579
Geekbench 6 Single Core
Intel Core i7 6900K
1286
Intel Core i5 9400F
+8%
1396
Geekbench 6 Multi Core
Intel Core i7 6900K
+45%
7470
Intel Core i5 9400F
5142
Blender
Intel Core i7 6900K
+128%
192
Intel Core i5 9400F
84
Geekbench 5 Single Core
Intel Core i7 6900K
961
Intel Core i5 9400F
+11%
1067
Geekbench 5 Multi Core
Intel Core i7 6900K
+52%
7327
Intel Core i5 9400F
4806
Passmark CPU Single Core
Intel Core i7 6900K
2310
Intel Core i5 9400F
+6%
2453
Passmark CPU Multi Core
Intel Core i7 6900K
+49%
14258
Intel Core i5 9400F
9511
General Parameters
May 2016
Release Date
Jan 2019
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Broadwell E
Core Architecture
Coffee Lake
i7-6900K
Processor Number
i5-9400F
LGA-2011-3
Socket
LGA-1151
N/A
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
65 W
-
Peak Operating Temperature
100 °C
CPU Performance
8
Performance Cores
6
16
Performance Core Threads
6
3.2 GHz
Performance Core Base Frequency
2.9 GHz
3.7 GHz
Performance Core Turbo Frequency
4.1 GHz
8
Total Core Count
6
16
Total Thread Count
6
100 MHz
Bus Frequency
100 MHz
32x
Multiplier
29x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
256 K per core
20 MB shared
L3 Cache
9 MB shared
No
Unlocked Multiplier
No
Memory Parameters
DDR4-2133
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
4
Max Memory Channels
2
76.8 GB/s
Max Memory Bandwidth
41.6 GB/s
No
ECC Memory Support
No
Miscellaneous
3.0
PCIe Version
3.0
40
PCIe Lanes
16
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
