| | | | | | |

Ryzen 9 3900X vs Core i9-9900K


Description
The 3900X is based on Zen 2 architecture while the i9-9900K is based on Coffee Lake.

Using the multithread performance as a reference, the 3900X gets a score of 756.3 k points while the i9-9900K gets 529.3 k points.

Summarizing, the 3900X is 1.4 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
906ed
Core
Matisse
Coffee Lake-S
Architecture
Base frecuency
3.8 GHz
3.6 GHz
Boost frecuency
4.6 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
4x16384 kB
16384 kB
Date
July 2019
October 2018
Mean monothread perf.
72.51k points
81.91k points
Mean multithread perf.
756.3k points
529.32k 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
3900X
i9-9900K
Test#1 (Integers)
4.46k
5k (x1.12)
Test#2 (FP)
18.46k
20.22k (x1.09)
Test#3 (Generic, ZIP)
8.05k
6.54k (x0.81)
Test#1 (Memory)
23.71k
13.78k (x0.58)
TOTAL
54.68k
45.53k (x0.83)

Multithread

3900X

i9-9900K
Test#1 (Integers)
52.65k
36.39k (x0.69)
Test#2 (FP)
265.41k
166.55k (x0.63)
Test#3 (Generic, ZIP)
140.78k
54.92k (x0.39)
Test#1 (Memory)
46.91k
8.96k (x0.19)
TOTAL
505.76k
266.82k (x0.53)

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
3900X
i9-9900K
Test#1 (Integers)
17.35k
18.03k (x1.04)
Test#2 (FP)
25.87k
25.98k (x1)
Test#3 (Generic, ZIP)
8.72k
6.86k (x0.79)
Test#1 (Memory)
27.86k
14.5k (x0.52)
TOTAL
79.8k
65.37k (x0.82)

Multithread

3900X

i9-9900K
Test#1 (Integers)
201.57k
131.34k (x0.65)
Test#2 (FP)
284.41k
204.76k (x0.72)
Test#3 (Generic, ZIP)
145.16k
55.74k (x0.38)
Test#1 (Memory)
100.56k
8.99k (x0.09)
TOTAL
731.7k
400.83k (x0.55)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
3900X
i9-9900K
Test#1 (Integers)
16.95k
17.98k (x1.06)
Test#2 (FP)
25.37k
27.04k (x1.07)
Test#3 (Generic, ZIP)
9.23k
6.63k (x0.72)
Test#1 (Memory)
24.83k
13.6k (x0.55)
TOTAL
76.38k
65.24k (x0.85)

Multithread

3900X

i9-9900K
Test#1 (Integers)
196.31k
130.88k (x0.67)
Test#2 (FP)
290.5k
208.5k (x0.72)
Test#3 (Generic, ZIP)
143.95k
54.12k (x0.38)
Test#1 (Memory)
64.92k
8.91k (x0.14)
TOTAL
695.69k
402.41k (x0.58)

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
3900X
i9-9900K
Test#1 (Integers)
16.73k
32.08k (x1.92)
Test#2 (FP)
24.74k
28.17k (x1.14)
Test#3 (Generic, ZIP)
8.82k
6.68k (x0.76)
Test#1 (Memory)
22.22k
14.98k (x0.67)
TOTAL
72.51k
81.91k (x1.13)

Multithread

3900X

i9-9900K
Test#1 (Integers)
248.24k
242.98k (x0.98)
Test#2 (FP)
309.66k
220.16k (x0.71)
Test#3 (Generic, ZIP)
140.01k
53.97k (x0.39)
Test#1 (Memory)
58.39k
12.22k (x0.21)
TOTAL
756.3k
529.32k (x0.7)

Performance/W
3900X
i9-9900K
Test#1 (Integers)
2364 points/W
2558 points/W
Test#2 (FP)
2949 points/W
2317 points/W
Test#3 (Generic, ZIP)
1333 points/W
568 points/W
Test#1 (Memory)
556 points/W
129 points/W
TOTAL
7203 points/W
5572 points/W

Performance/GHz
3900X
i9-9900K
Test#1 (Integers)
3638 points/GHz
6417 points/GHz
Test#2 (FP)
5377 points/GHz
5634 points/GHz
Test#3 (Generic, ZIP)
1917 points/GHz
1335 points/GHz
Test#1 (Memory)
4831 points/GHz
2996 points/GHz
TOTAL
15763 points/GHz
16382 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