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Core i5-6400 vs Ryzen 7 5800H


Description
The i5-6400 is based on Skylake architecture while the 5800H is based on Zen 3.

Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the 5800H gets 426.9 k points.

Summarizing, the 5800H is 2.5 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
a50f00
Core
Skylake-S
Cezanne
Architecture
Base frecuency
2.7 GHz
3.2 GHz
Boost frecuency
3.3 GHz
4.4 GHz
Socket
LGA 1151
BGA 1140
Cores/Threads
4/4
8/16
TDP
65 W
45 W
Cache L1 (d+i)
4x32+4x32 kB
8x32+8x32 kB
Cache L2
4x256 kB
8x512 kB
Cache L3
6144 kB
16384 kB
Date
September 2015
February 2021
Mean monothread perf.
48.05k points
74.56k points
Mean multithread perf.
174.05k points
426.9k 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
i5-6400
5800H
Test#1 (Integers)
3.2k
4.31k (x1.35)
Test#2 (FP)
12.81k
17.51k (x1.37)
Test#3 (Generic, ZIP)
4.18k
10.53k (x2.52)
Test#1 (Memory)
4.3k
23.57k (x5.48)
TOTAL
24.49k
55.92k (x2.28)

Multithread

i5-6400

5800H
Test#1 (Integers)
11.45k
24.18k (x2.11)
Test#2 (FP)
46.67k
117.98k (x2.53)
Test#3 (Generic, ZIP)
14.69k
70.96k (x4.83)
Test#1 (Memory)
5.92k
8.08k (x1.36)
TOTAL
78.73k
221.19k (x2.81)

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
5800H
Test#1 (Integers)
21.1k
20.37k (x0.97)
Test#2 (FP)
18.28k
22.52k (x1.23)
Test#3 (Generic, ZIP)
4.22k
10.18k (x2.41)
Test#1 (Memory)
4.45k
21.49k (x4.83)
TOTAL
48.05k
74.56k (x1.55)

Multithread

i5-6400

5800H
Test#1 (Integers)
80.03k
144.01k (x1.8)
Test#2 (FP)
71.1k
191.86k (x2.7)
Test#3 (Generic, ZIP)
16.19k
84.53k (x5.22)
Test#1 (Memory)
6.73k
6.5k (x0.96)
TOTAL
174.05k
426.9k (x2.45)

Performance/W
i5-6400
5800H
Test#1 (Integers)
1231 points/W
3200 points/W
Test#2 (FP)
1094 points/W
4264 points/W
Test#3 (Generic, ZIP)
249 points/W
1878 points/W
Test#1 (Memory)
104 points/W
144 points/W
TOTAL
2678 points/W
9487 points/W

Performance/GHz
i5-6400
5800H
Test#1 (Integers)
6394 points/GHz
4630 points/GHz
Test#2 (FP)
5539 points/GHz
5117 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
2314 points/GHz
Test#1 (Memory)
1348 points/GHz
4883 points/GHz
TOTAL
14560 points/GHz
16944 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