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Core i5-6400 vs i5-8300H


Description
The i5-6400 is based on Skylake architecture while the i5-8300H is based on Coffee Lake.

Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i5-8300H gets 182.5 k points.

Summarizing, the i5-8300H is 1 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
906ea
Core
Skylake-S
Coffee Lake-H
Architecture
Base frecuency
2.7 GHz
2.3 GHz
Boost frecuency
3.3 GHz
4 GHz
Socket
LGA 1151
BGA 1440
Cores/Threads
4/4
4/8
TDP
65 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+x4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
September 2015
April 2018
Mean monothread perf.
48.05k points
56.72k points
Mean multithread perf.
174.05k points
182.47k 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
i5-6400
i5-8300H
Test#1 (Integers)
21.1k
23.6k (x1.12)
Test#2 (FP)
18.28k
21.72k (x1.19)
Test#3 (Generic, ZIP)
4.22k
4.61k (x1.09)
Test#1 (Memory)
4.45k
6.8k (x1.53)
TOTAL
48.05k
56.72k (x1.18)

Multithread

i5-6400

i5-8300H
Test#1 (Integers)
80.03k
79.12k (x0.99)
Test#2 (FP)
71.1k
81.27k (x1.14)
Test#3 (Generic, ZIP)
16.19k
17.46k (x1.08)
Test#1 (Memory)
6.73k
4.62k (x0.69)
TOTAL
174.05k
182.47k (x1.05)

Performance/W
i5-6400
i5-8300H
Test#1 (Integers)
1231 points/W
1758 points/W
Test#2 (FP)
1094 points/W
1806 points/W
Test#3 (Generic, ZIP)
249 points/W
388 points/W
Test#1 (Memory)
104 points/W
103 points/W
TOTAL
2678 points/W
4055 points/W

Performance/GHz
i5-6400
i5-8300H
Test#1 (Integers)
6394 points/GHz
5899 points/GHz
Test#2 (FP)
5539 points/GHz
5431 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
1152 points/GHz
Test#1 (Memory)
1348 points/GHz
1699 points/GHz
TOTAL
14560 points/GHz
14181 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4