Intel Core i5 9400T vs Intel Core i9 9940X
We compared two desktop CPUs: Intel Core i5 9400T with 6 cores 1.8GHz 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 i5 9400T 's Advantages
Released 6 months late
Integrated graphics card
Lower TDP (35W vs 165W)
Intel Core i9 9940X 's Advantages
Larger memory bandwidth (85GB/s vs 41.6GB/s)
Higher base frequency (3.3GHz vs 1.8GHz)
Larger L3 cache size (20MB vs 9MB)
Score
Benchmark
Geekbench 6 Single Core
Intel Core i5 9400T
1185
Intel Core i9 9940X
+12%
1328
Geekbench 6 Multi Core
Intel Core i5 9400T
4161
Intel Core i9 9940X
+135%
9787
Geekbench 5 Single Core
Intel Core i5 9400T
877
Intel Core i9 9940X
+35%
1189
Geekbench 5 Multi Core
Intel Core i5 9400T
3859
Intel Core i9 9940X
+272%
14374
Passmark CPU Single Core
Intel Core i5 9400T
2019
Intel Core i9 9940X
+29%
2608
Passmark CPU Multi Core
Intel Core i5 9400T
7742
Intel Core i9 9940X
+266%
28355
General Parameters
Apr 2019
Release Date
Oct 2018
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Skylake
i5-9400T
Processor Number
i9-9940X
LGA-1151
Socket
LGA-2066
UHD Graphics 630
Integrated Graphics
N/A
Package
14 nm
Manufacturing Process
14 nm
35 W
Power Consumption
165 W
100 °C
Peak Operating Temperature
88 °C
CPU Performance
6
Performance Cores
14
6
Performance Core Threads
28
1.8 GHz
Performance Core Base Frequency
3.3 GHz
3.4 GHz
Performance Core Turbo Frequency
4.4 GHz
6
Total Core Count
14
6
Total Thread Count
28
100 MHz
Bus Frequency
100 MHz
18x
Multiplier
33x
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
1 MB per core
9 MB shared
L3 Cache
20 MB shared
No
Unlocked Multiplier
Yes
Memory Parameters
DDR4-2666
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
4
41.6 GB/s
Max Memory Bandwidth
85 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
-
350 MHz
GPU Base Frequency
-
1050 MHz
GPU Max Dynamic Frequency
-
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
44
SSE4.1, SSE4.2, AVX-2
Extended Instruction Set
SSE4.1, SSE4.2, AVX-2, AVX-512
