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Core i5-8400H vs i5-6500


Description
The i5-8400H is based on Coffee Lake architecture while the i5-6500 is based on Skylake.

Using the multithread performance as a reference, the i5-8400H gets a score of 195.9 k points while the i5-6500 gets 179.4 k points.

Summarizing, the i5-8400H is 1.1 times faster than the i5-6500 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
506e3
Core
Coffee Lake-H
Skylake-S
Architecture
Base frecuency
2.5 GHz
3.2 GHz
Boost frecuency
4.2 GHz
3.6 GHz
Socket
BGA 1440
LGA 1151
Cores/Threads
4/8
4/4
TDP
45 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
6144 kB
Date
April 2018
September 2015
Mean monothread perf.
67.06k points
53.7k points
Mean multithread perf.
195.94k points
179.44k 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
i5-8400H
i5-6500
Test#1 (Integers)
26.51k
22.89k (x0.86)
Test#2 (FP)
23.61k
19.87k (x0.84)
Test#3 (Generic, ZIP)
5.17k
4.58k (x0.88)
Test#1 (Memory)
11.76k
6.36k (x0.54)
TOTAL
67.06k
53.7k (x0.8)

Multithread

i5-8400H

i5-6500
Test#1 (Integers)
85.52k
84.36k (x0.99)
Test#2 (FP)
84.4k
72.91k (x0.86)
Test#3 (Generic, ZIP)
19.19k
16.08k (x0.84)
Test#1 (Memory)
6.83k
6.1k (x0.89)
TOTAL
195.94k
179.44k (x0.92)

Performance/W
i5-8400H
i5-6500
Test#1 (Integers)
1901 points/W
1298 points/W
Test#2 (FP)
1875 points/W
1122 points/W
Test#3 (Generic, ZIP)
426 points/W
247 points/W
Test#1 (Memory)
152 points/W
94 points/W
TOTAL
4354 points/W
2761 points/W

Performance/GHz
i5-8400H
i5-6500
Test#1 (Integers)
6313 points/GHz
6359 points/GHz
Test#2 (FP)
5622 points/GHz
5521 points/GHz
Test#3 (Generic, ZIP)
1232 points/GHz
1271 points/GHz
Test#1 (Memory)
2800 points/GHz
1766 points/GHz
TOTAL
15967 points/GHz
14917 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