Intel Core i5 9400T vs Intel Core i5 6400
We compared two desktop CPUs: Intel Core i5 9400T with 6 cores 1.8GHz and Intel Core i5 6400 with 4 cores 2.7GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i5 9400T 's Advantages
Released 3 years and 7 months late
Higher specification of memory (2666 vs 2133)
Larger memory bandwidth (41.6GB/s vs 34.1GB/s)
Larger L3 cache size (9MB vs 6MB)
Lower TDP (35W vs 65W)
Intel Core i5 6400 's Advantages
Higher base frequency (2.7GHz vs 1.8GHz)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i5 9400T
+3%
1185
Intel Core i5 6400
1143
Geekbench 6 Multi Core
Intel Core i5 9400T
+25%
4161
Intel Core i5 6400
3312
Blender
Intel Core i5 9400T
+2%
50
Intel Core i5 6400
49
Geekbench 5 Single Core
Intel Core i5 9400T
+2%
877
Intel Core i5 6400
853
Geekbench 5 Multi Core
Intel Core i5 9400T
+37%
3859
Intel Core i5 6400
2805
Passmark CPU Single Core
Intel Core i5 9400T
+2%
2019
Intel Core i5 6400
1961
Passmark CPU Multi Core
Intel Core i5 9400T
+50%
7742
Intel Core i5 6400
5151
General Parameters
Apr 2019
Release Date
Sep 2015
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Skylake
i5-9400T
Processor Number
i5-6400
LGA-1151
Socket
LGA-1151
UHD Graphics 630
Integrated Graphics
HD Graphics 530
Package
14 nm
Manufacturing Process
14 nm
35 W
Power Consumption
65 W
100 °C
Peak Operating Temperature
-
CPU Performance
6
Performance Cores
4
6
Performance Core Threads
4
1.8 GHz
Performance Core Base Frequency
2.7 GHz
3.4 GHz
Performance Core Turbo Frequency
3.3 GHz
6
Total Core Count
4
6
Total Thread Count
4
100 MHz
Bus Frequency
100 MHz
18x
Multiplier
27x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
256 K per core
9 MB shared
L3 Cache
6 MB shared
No
Unlocked Multiplier
No
Memory Parameters
DDR4-2666
Memory Types
DDR4-2133, DDR3L-1600
128 GB
Max Memory Size
64 GB
2
Max Memory Channels
2
41.6 GB/s
Max Memory Bandwidth
34.1 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
350 MHz
GPU Base Frequency
-
1050 MHz
GPU Max Dynamic Frequency
950 MHz
192
Shader Units
-
24
Texture Units
-
3
Raster Operation Units
-
24
Execution Units
-
15 W
Power Consumption
-
4096x2304 - 60 Hz
Max Resolution
-
0.38 TFLOPS
Graphics Performance
-
Miscellaneous
3.0
PCIe Version
3.0
16
PCIe Lanes
16
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2
