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Core i9-9900K vs Ryzen 9 5950X


Description
The i9-9900K is based on Coffee Lake architecture while the 5950X is based on Zen 3.

Using the multithread performance as a reference, the i9-9900K gets a score of 529.3 k points while the 5950X gets 1037.1 k points.

Summarizing, the 5950X is 2 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
a20f12
Core
Coffee Lake-S
Vermeer
Architecture
Base frecuency
3.6 GHz
3.4 GHz
Boost frecuency
5 GHz
4.9 GHz
Socket
LGA 1151
AM4
Cores/Threads
8/16
16/32
TDP
95 W
105 W
Cache L1 (d+i)
8x32+8x32 kB
16x32+16x32 kB
Cache L2
8x256 kB
16x512 kB
Cache L3
16384 kB
2x32768 kB
Date
October 2018
November 2020
Mean monothread perf.
81.91k points
84.56k points
Mean multithread perf.
529.32k points
1037.15k points

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i9-9900K
5950X
Test#1 (Integers)
18.03k
18.18k (x1.01)
Test#2 (FP)
25.98k
24.29k (x0.94)
Test#3 (Generic, ZIP)
6.86k
13.01k (x1.9)
Test#1 (Memory)
14.5k
29.85k (x2.06)
TOTAL
65.37k
85.34k (x1.31)

Multithread

i9-9900K

5950X
Test#1 (Integers)
131.34k
221.35k (x1.69)
Test#2 (FP)
204.76k
350.39k (x1.71)
Test#3 (Generic, ZIP)
55.74k
188.52k (x3.38)
Test#1 (Memory)
8.99k
29.4k (x3.27)
TOTAL
400.83k
789.66k (x1.97)

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
i9-9900K
5950X
Test#1 (Integers)
32.08k
22k (x0.69)
Test#2 (FP)
28.17k
26.03k (x0.92)
Test#3 (Generic, ZIP)
6.68k
11.48k (x1.72)
Test#1 (Memory)
14.98k
25.05k (x1.67)
TOTAL
81.91k
84.56k (x1.03)

Multithread

i9-9900K

5950X
Test#1 (Integers)
242.98k
340.22k (x1.4)
Test#2 (FP)
220.16k
463.72k (x2.11)
Test#3 (Generic, ZIP)
53.97k
200.38k (x3.71)
Test#1 (Memory)
12.22k
32.83k (x2.69)
TOTAL
529.32k
1037.15k (x1.96)

Performance/W
i9-9900K
5950X
Test#1 (Integers)
2558 points/W
3240 points/W
Test#2 (FP)
2317 points/W
4416 points/W
Test#3 (Generic, ZIP)
568 points/W
1908 points/W
Test#1 (Memory)
129 points/W
313 points/W
TOTAL
5572 points/W
9878 points/W

Performance/GHz
i9-9900K
5950X
Test#1 (Integers)
6417 points/GHz
4490 points/GHz
Test#2 (FP)
5634 points/GHz
5312 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
2343 points/GHz
Test#1 (Memory)
2996 points/GHz
5111 points/GHz
TOTAL
16382 points/GHz
17257 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