Core i5-8400 vs i5-7400T
Description
The i5-8400 is based on Coffee Lake architecture while the i5-7400T is based on Kaby Lake.
Using the multithread performance as a reference, the i5-8400 gets a score of 289.6 k points while the i5-7400T gets 163.4 k points.
Summarizing, the i5-8400 is 1.8 times faster than the i5-7400T. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i5-8400 gets a score of 289.6 k points while the i5-7400T gets 163.4 k points.
Summarizing, the i5-8400 is 1.8 times faster than the i5-7400T. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906ea
906e9
Core
Coffee Lake-S
Kaby Lake-S
Base frecuency
2.8 GHz
2.4 GHz
Boost frecuency
4 GHz
3 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
4/4
TDP
65 W
35 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
9216 kB
6144 kB
Date
September 2017
January 2017
Mean monothread perf.
64.98k points
49.16k points
Mean multithread perf.
289.61k points
163.4k points
AVX2 optimized benchmark
The benchmark in mode III (AVX2), like AVX1, is optimized to used 256 bits registers beside the second version of the Advanced Vector Extensions (AVX). The first AVX2 compatible CPU was released in 2013.
Monothread
i5-8400
i5-7400T
Test#1 (Integers)
26.5k
19.7k (x0.74)
Test#2 (FP)
23.11k
17.29k (x0.75)
Test#3 (Generic, ZIP)
5.2k
4.07k (x0.78)
Test#1 (Memory)
10.16k
8.1k (x0.8)
TOTAL
64.98k
49.16k (x0.76)
Multithread
i5-8400
i5-7400T
Test#1 (Integers)
135.08k
75.27k (x0.56)
Test#2 (FP)
121.49k
66.24k (x0.55)
Test#3 (Generic, ZIP)
27.53k
13.93k (x0.51)
Test#1 (Memory)
5.5k
7.95k (x1.45)
TOTAL
289.61k
163.4k (x0.56)
Performance/W
i5-8400
i5-7400T
Test#1 (Integers)
2078 points/W
2151 points/W
Test#2 (FP)
1869 points/W
1893 points/W
Test#3 (Generic, ZIP)
424 points/W
398 points/W
Test#1 (Memory)
85 points/W
227 points/W
TOTAL
4455 points/W
4669 points/W
Performance/GHz
i5-8400
i5-7400T
Test#1 (Integers)
6626 points/GHz
6568 points/GHz
Test#2 (FP)
5778 points/GHz
5764 points/GHz
Test#3 (Generic, ZIP)
1300 points/GHz
1356 points/GHz
Test#1 (Memory)
2541 points/GHz
2700 points/GHz
TOTAL
16245 points/GHz
16388 points/GHz
Monothread performance graph
Monothread performance graphics gives the performance vs time. They are useful to measure the time it takes to the CPU to reach the maximum performance.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Usually, CPU's performance will be steady during these tests but if it has a slow frequency strategy, the first samples will show a lower score.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Multithread performance graph
Multithread graphs measure the performance against a heavy load during certain time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
If CPU's TDP doesn't limit the frequency and the machine is properly cooled, performance should remain steady vs time. Otherwise, the performance score will oscillate or decrease over time.
Test#1 (Integers) [points vs time]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4