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Ryzen 9 5900X vs Core i9-9900K


Description
The 5900X is based on Zen 3 architecture while the i9-9900K is based on Coffee Lake.

Using the multithread performance as a reference, the 5900X gets a score of 840.1 k points while the i9-9900K gets 545.3 k points.

Summarizing, the 5900X is 1.5 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a20f10
906ec
Core
Vermeer
Coffee Lake-S
Architecture
Base frecuency
3.7 GHz
3.6 GHz
Boost frecuency
4.8 GHz
5 GHz
Socket
AM4
LGA 1151
Cores/Threads
12/24
8/16
TDP
105 W
95 W
Cache L1 (d+i)
12x32+12x32 kB
8x32+8x32 kB
Cache L2
12x512 kB
8x256 kB
Cache L3
2x32768 kB
16384 kB
Date
November 2020
October 2018
Mean monothread perf.
89.82k points
86.24k points
Mean multithread perf.
840.11k points
545.3k 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
5900X
i9-9900K
Test#1 (Integers)
24.34k
33.62k (x1.38)
Test#2 (FP)
26.8k
30.02k (x1.12)
Test#3 (Generic, ZIP)
12.12k
7.17k (x0.59)
Test#1 (Memory)
26.55k
15.43k (x0.58)
TOTAL
89.82k
86.24k (x0.96)

Multithread

5900X

i9-9900K
Test#1 (Integers)
263.12k
248.93k (x0.95)
Test#2 (FP)
353.9k
224.43k (x0.63)
Test#3 (Generic, ZIP)
159.07k
53.39k (x0.34)
Test#1 (Memory)
64.01k
18.54k (x0.29)
TOTAL
840.11k
545.3k (x0.65)

Performance/W
5900X
i9-9900K
Test#1 (Integers)
2506 points/W
2620 points/W
Test#2 (FP)
3371 points/W
2362 points/W
Test#3 (Generic, ZIP)
1515 points/W
562 points/W
Test#1 (Memory)
610 points/W
195 points/W
TOTAL
8001 points/W
5740 points/W

Performance/GHz
5900X
i9-9900K
Test#1 (Integers)
5071 points/GHz
6724 points/GHz
Test#2 (FP)
5584 points/GHz
6003 points/GHz
Test#3 (Generic, ZIP)
2526 points/GHz
1434 points/GHz
Test#1 (Memory)
5530 points/GHz
3087 points/GHz
TOTAL
18712 points/GHz
17247 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