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Core i9-9900K vs Ryzen 7 3700X


Description
The i9-9900K is based on Coffee Lake architecture while the 3700X is based on Zen 2.

Using the multithread performance as a reference, the i9-9900K gets a score of 529.3 k points while the 3700X gets 491.2 k points.

Summarizing, the i9-9900K is 1.1 times faster than the 3700X. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
870f10
Core
Coffee Lake-S
Matisse
Architecture
Base frecuency
3.6 GHz
3.6 GHz
Boost frecuency
5 GHz
4.4 GHz
Socket
LGA 1151
AM4
Cores/Threads
8/16
8/16
TDP
95 W
65 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x256 kB
8x512 kB
Cache L3
16384 kB
32768 kB
Date
October 2018
July 2019
Mean monothread perf.
81.91k points
74.75k points
Mean multithread perf.
529.32k points
491.15k 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
i9-9900K
3700X
Test#1 (Integers)
32.08k
16.81k (x0.52)
Test#2 (FP)
28.17k
26.39k (x0.94)
Test#3 (Generic, ZIP)
6.68k
8.82k (x1.32)
Test#1 (Memory)
14.98k
22.73k (x1.52)
TOTAL
81.91k
74.75k (x0.91)

Multithread

i9-9900K

3700X
Test#1 (Integers)
242.98k
170.29k (x0.7)
Test#2 (FP)
220.16k
213.21k (x0.97)
Test#3 (Generic, ZIP)
53.97k
96.03k (x1.78)
Test#1 (Memory)
12.22k
11.62k (x0.95)
TOTAL
529.32k
491.15k (x0.93)

Performance/W
i9-9900K
3700X
Test#1 (Integers)
2558 points/W
2620 points/W
Test#2 (FP)
2317 points/W
3280 points/W
Test#3 (Generic, ZIP)
568 points/W
1477 points/W
Test#1 (Memory)
129 points/W
179 points/W
TOTAL
5572 points/W
7556 points/W

Performance/GHz
i9-9900K
3700X
Test#1 (Integers)
6417 points/GHz
3821 points/GHz
Test#2 (FP)
5634 points/GHz
5998 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
2005 points/GHz
Test#1 (Memory)
2996 points/GHz
5166 points/GHz
TOTAL
16382 points/GHz
16990 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