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Ryzen 9 5900HX vs Core i5-6600K


Description
The 5900HX is based on Zen 3 architecture while the i5-6600K is based on Skylake.

Using the multithread performance as a reference, the 5900HX gets a score of 421.1 k points while the i5-6600K gets 199.9 k points.

Summarizing, the 5900HX is 2.1 times faster than the i5-6600K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a50f00
506e3
Core
Cezanne
Skylake-S
Architecture
Base frecuency
3.3 GHz
3.5 GHz
Boost frecuency
4.6 GHz
3.9 GHz
Socket
BGA1140-FP6
LGA 1151
Cores/Threads
8/16
4/4
TDP
45 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
4x32+4x32 kB
Cache L2
8x512 kB
256 kB
Cache L3
16384 kB
6144 kB
Date
January 2021
May 2015
Mean monothread perf.
85.76k points
56.21k points
Mean multithread perf.
421.05k points
199.91k 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
5900HX
i5-6600K
Test#1 (Integers)
23.29k
24.19k (x1.04)
Test#2 (FP)
25.89k
21.31k (x0.82)
Test#3 (Generic, ZIP)
11.75k
4.95k (x0.42)
Test#1 (Memory)
24.83k
5.75k (x0.23)
TOTAL
85.76k
56.21k (x0.66)

Multithread

5900HX

i5-6600K
Test#1 (Integers)
138.16k
93.15k (x0.67)
Test#2 (FP)
192.12k
81.18k (x0.42)
Test#3 (Generic, ZIP)
80.84k
18.29k (x0.23)
Test#1 (Memory)
9.93k
7.29k (x0.73)
TOTAL
421.05k
199.91k (x0.47)

Performance/W
5900HX
i5-6600K
Test#1 (Integers)
3070 points/W
981 points/W
Test#2 (FP)
4269 points/W
855 points/W
Test#3 (Generic, ZIP)
1796 points/W
193 points/W
Test#1 (Memory)
221 points/W
77 points/W
TOTAL
9357 points/W
2104 points/W

Performance/GHz
5900HX
i5-6600K
Test#1 (Integers)
5064 points/GHz
6203 points/GHz
Test#2 (FP)
5628 points/GHz
5463 points/GHz
Test#3 (Generic, ZIP)
2555 points/GHz
1270 points/GHz
Test#1 (Memory)
5398 points/GHz
1475 points/GHz
TOTAL
18644 points/GHz
14412 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