Intel Core i5 8400 vs Intel Core i9 9900T
We compared two desktop CPUs: Intel Core i5 8400 with 6 cores 2.8GHz and Intel Core i9 9900T with 8 cores 2.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Core i5 8400 Advantages
Higher base frequency (2.8GHz vs 2.1GHz)
Intel Core i9 9900T Advantages
Released 1 years and 6 months late
Larger L3 cache size (16MB vs 9MB)
Lower TDP (35W vs 65W)
Score
Benchmark
Cinebench R23 Single Core
Intel Core i5 8400
1026
Intel Core i9 9900T
+17%
1204
Cinebench R23 Multi Core
Intel Core i5 8400
5798
Intel Core i9 9900T
+75%
10202
Geekbench 6 Single Core
Intel Core i5 8400
1298
Intel Core i9 9900T
+12%
1461
Geekbench 6 Multi Core
Intel Core i5 8400
4677
Intel Core i9 9900T
+44%
6776
Blender
Intel Core i5 8400
83
Intel Core i9 9900T
+14%
95
Geekbench 5 Single Core
Intel Core i5 8400
1032
Intel Core i9 9900T
+11%
1150
Geekbench 5 Multi Core
Intel Core i5 8400
4611
Intel Core i9 9900T
+46%
6752
Passmark CPU Single Core
Intel Core i5 8400
2387
Intel Core i9 9900T
+3%
2470
Passmark CPU Multi Core
Intel Core i5 8400
9214
Intel Core i9 9900T
+46%
13472
General Parameters
Oct 2017
Release Date
Apr 2019
Intel
Manufacturer
Intel
Desktop
Type
Desktop
x86-64
Instruction Set
x86-64
Coffee Lake
Core Architecture
Coffee Lake
i5-8400
Processor Number
i9-9900T
LGA-1151
Socket
LGA-1151
UHD Graphics 630
Integrated Graphics
UHD Graphics 630
Package
14 nm
Manufacturing Process
14 nm
65 W
Power Consumption
35 W
100 °C
Peak Operating Temperature
100 °C
CPU Performance
6
Performance Cores
8
6
Performance Core Threads
16
2.8 GHz
Performance Core Base Frequency
2.1 GHz
4 GHz
Performance Core Turbo Frequency
4.4 GHz
6
Total Core Count
8
6
Total Thread Count
16
100 MHz
Bus Frequency
100 MHz
28x
Multiplier
21x
64 K per core
L1 Cache
32 K per core
256 K per core
L2 Cache
256 K per core
9 MB shared
L3 Cache
16 MB shared
No
Unlocked Multiplier
No
Memory Parameters
DDR4-2666
Memory Types
DDR4-2666
128 GB
Max Memory Size
128 GB
2
Max Memory Channels
2
41.6 GB/s
Max Memory Bandwidth
41.6 GB/s
No
ECC Memory Support
No
Graphics Card Parameters
true
Integrated Graphics
true
350 MHz
GPU Base Frequency
350 MHz
1050 MHz
GPU Max Dynamic Frequency
1200 MHz
192
Shader Units
192
24
Texture Units
24
3
Raster Operation Units
3
24
Execution Units
24
15 W
Power Consumption
15 W
4096x2304 - 60 Hz
Max Resolution
4096x2304 - 60 Hz
0.38 TFLOPS
Graphics Performance
0.38 TFLOPS
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
