Intel Core i7 6900K vs Intel Core i5 8400T
We compared two desktop CPUs: Intel Core i7 6900K with 8 cores 3.2GHz and Intel Core i5 8400T with 6 cores 1.7GHz . 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 1.7GHz)
Larger L3 cache size (20MB vs 9MB)
Intel Core i5 8400T 's Advantages
Released 1 years and 11 months late
Integrated graphics card
Higher specification of memory (2666 vs 2133)
Lower TDP (35W vs 140W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i7 6900K
+48%
1151
Intel Core i5 8400T
774
Cinebench R23 Multi Core
Intel Core i7 6900K
+211%
11326
Intel Core i5 8400T
3638
Geekbench 6 Single Core
Intel Core i7 6900K
+14%
1286
Intel Core i5 8400T
1120
Geekbench 6 Multi Core
Intel Core i7 6900K
+103%
7470
Intel Core i5 8400T
3670
Blender
Intel Core i7 6900K
+448%
192
Intel Core i5 8400T
35
Geekbench 5 Single Core
Intel Core i7 6900K
+8%
961
Intel Core i5 8400T
886
Geekbench 5 Multi Core
Intel Core i7 6900K
+83%
7327
Intel Core i5 8400T
4000
Passmark CPU Single Core
Intel Core i7 6900K
+20%
2310
Intel Core i5 8400T
1917
Passmark CPU Multi Core
Intel Core i7 6900K
+91%
14258
Intel Core i5 8400T
7447
General Parameters
May 2016
Release Date
Apr 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Broadwell E
Core Architecture
Coffee Lake
i7-6900K
Processor Number
i5-8400T
LGA-2011-3
Socket
LGA-1151
N/A
Integrated Graphics
UHD Graphics 630
Package
14 nm
Manufacturing Process
14 nm
140 W
Power Consumption
35 W
-
Peak Operating Temperature
100 °C
CPU Performance
8
Performance Cores
6
16
Performance Core Threads
6
3.2 GHz
Performance Core Base Frequency
1.7 GHz
3.7 GHz
Performance Core Turbo Frequency
3.3 GHz
8
Total Core Count
6
16
Total Thread Count
6
100 MHz
Bus Frequency
100 MHz
32x
Multiplier
17x
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
Graphics Card Parameters
-
Integrated Graphics
true
-
GPU Base Frequency
350 MHz
-
GPU Max Dynamic Frequency
1050 MHz
-
Shader Units
192
-
Texture Units
24
-
Raster Operation Units
3
-
Execution Units
24
-
Power Consumption
15 W
-
Max Resolution
4096x2304 - 60 Hz
-
Graphics Performance
0.38 TFLOPS
Miscellaneous
3.0
PCIe Version
3.0
40
PCIe Lanes
16
-
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
