Core i3-7100 vs i5-8400
Description
The i3-7100 is based on Kaby Lake architecture while the i5-8400 is based on Coffee Lake.
Using the multithread performance as a reference, the i3-7100 gets a score of 126.5 k points while the i5-8400 gets 289.6 k points.
Summarizing, the i5-8400 is 2.3 times faster than the i3-7100. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i3-7100 gets a score of 126.5 k points while the i5-8400 gets 289.6 k points.
Summarizing, the i5-8400 is 2.3 times faster than the i3-7100. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906e9
906ea
Core
Kaby Lake-S
Coffee Lake-S
Base frecuency
3.9 GHz
2.8 GHz
Boost frecuency
3.9 GHz
4 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
2/4
6/6
TDP
51 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
6x32+6x32 kB
Cache L2
2x256 kB
6x256 kB
Cache L3
3072 kB
9216 kB
Date
January 2017
September 2017
Mean monothread perf.
58.55k points
64.98k points
Mean multithread perf.
126.47k points
289.61k points
Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i3-7100
i5-8400
Test#1 (Integers)
4.01k
4.08k (x1.02)
Test#2 (FP)
16.38k
14.96k (x0.91)
Test#3 (Generic, ZIP)
5.31k
4.98k (x0.94)
Test#1 (Memory)
3.98k
10.29k (x2.58)
TOTAL
29.69k
34.31k (x1.16)
Multithread
i3-7100
i5-8400
Test#1 (Integers)
8.1k
21.54k (x2.66)
Test#2 (FP)
38.7k
85.13k (x2.2)
Test#3 (Generic, ZIP)
12.69k
28.24k (x2.23)
Test#1 (Memory)
3.76k
4.08k (x1.09)
TOTAL
63.24k
139k (x2.2)
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
i3-7100
i5-8400
Test#1 (Integers)
25.77k
26.5k (x1.03)
Test#2 (FP)
23.26k
23.11k (x0.99)
Test#3 (Generic, ZIP)
5.43k
5.2k (x0.96)
Test#1 (Memory)
4.09k
10.16k (x2.48)
TOTAL
58.55k
64.98k (x1.11)
Multithread
i3-7100
i5-8400
Test#1 (Integers)
54.98k
135.08k (x2.46)
Test#2 (FP)
54.73k
121.49k (x2.22)
Test#3 (Generic, ZIP)
13.12k
27.53k (x2.1)
Test#1 (Memory)
3.65k
5.5k (x1.51)
TOTAL
126.47k
289.61k (x2.29)
Performance/W
i3-7100
i5-8400
Test#1 (Integers)
1078 points/W
2078 points/W
Test#2 (FP)
1073 points/W
1869 points/W
Test#3 (Generic, ZIP)
257 points/W
424 points/W
Test#1 (Memory)
72 points/W
85 points/W
TOTAL
2480 points/W
4455 points/W
Performance/GHz
i3-7100
i5-8400
Test#1 (Integers)
6607 points/GHz
6626 points/GHz
Test#2 (FP)
5964 points/GHz
5778 points/GHz
Test#3 (Generic, ZIP)
1393 points/GHz
1300 points/GHz
Test#1 (Memory)
1049 points/GHz
2541 points/GHz
TOTAL
15014 points/GHz
16245 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