Ryzen 7 3800X vs Ryzen 9 3900X
Description
Both models 3800X and 3900X are based on Zen 2 architecture.
Zen 2 is fabricated on the 7nm process from TSMC and it’s the third generation of Zen CPUs. It comes with 64kB of L1 cache and 512kB of L2 cache per core. Zen 2 CPUs are divided into 3 categories: Matisse (desktop), Rome (Server) and Castle Peak (high-end desktop).
Using the multithread performance as a reference, the 3800X gets a score of 497.7 k points while the 3900X gets 756.3 k points.
Summarizing, the 3900X is 1.5 times faster than the 3800X. To get a proper comparison between both models, take a look to the data shown below.
Zen 2 is fabricated on the 7nm process from TSMC and it’s the third generation of Zen CPUs. It comes with 64kB of L1 cache and 512kB of L2 cache per core. Zen 2 CPUs are divided into 3 categories: Matisse (desktop), Rome (Server) and Castle Peak (high-end desktop).
Using the multithread performance as a reference, the 3800X gets a score of 497.7 k points while the 3900X gets 756.3 k points.
Summarizing, the 3900X is 1.5 times faster than the 3800X. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
870f10
870f10
Core
Matisse
Matisse
Base frecuency
3.9 GHz
3.8 GHz
Boost frecuency
4.5 GHz
4.6 GHz
Socket
AM4
AM4
Cores/Threads
8/16
12/24
TDP
105 W
105 W
Cache L1 (d+i)
8x32+8x32 kB
12x32+12x32 kB
Cache L2
8x512 kB
12x512 kB
Cache L3
32768 kB
4x16384 kB
Date
July 2019
July 2019
Mean monothread perf.
75.81k points
72.51k points
Mean multithread perf.
497.74k points
756.3k 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
3800X
3900X
Test#1 (Integers)
4.47k
4.46k (x1)
Test#2 (FP)
17.41k
18.46k (x1.06)
Test#3 (Generic, ZIP)
8.23k
8.05k (x0.98)
Test#1 (Memory)
25.15k
23.71k (x0.94)
TOTAL
55.26k
54.68k (x0.99)
Multithread
3800X
3900X
Test#1 (Integers)
36.1k
52.65k (x1.46)
Test#2 (FP)
178.65k
265.41k (x1.49)
Test#3 (Generic, ZIP)
95.98k
140.78k (x1.47)
Test#1 (Memory)
16.03k
46.91k (x2.93)
TOTAL
326.76k
505.76k (x1.55)
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
3800X
3900X
Test#1 (Integers)
17.17k
17.35k (x1.01)
Test#2 (FP)
25.32k
25.87k (x1.02)
Test#3 (Generic, ZIP)
8.36k
8.72k (x1.04)
Test#1 (Memory)
27.86k
27.86k (x1)
TOTAL
78.71k
79.8k (x1.01)
Multithread
3800X
3900X
Test#1 (Integers)
136.06k
201.57k (x1.48)
Test#2 (FP)
195.06k
284.41k (x1.46)
Test#3 (Generic, ZIP)
97.81k
145.16k (x1.48)
Test#1 (Memory)
12.91k
100.56k (x7.79)
TOTAL
441.85k
731.7k (x1.66)
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
3800X
3900X
Test#1 (Integers)
16.76k
16.95k (x1.01)
Test#2 (FP)
25.16k
25.37k (x1.01)
Test#3 (Generic, ZIP)
8.76k
9.23k (x1.05)
Test#1 (Memory)
24.3k
24.83k (x1.02)
TOTAL
74.98k
76.38k (x1.02)
Multithread
3800X
3900X
Test#1 (Integers)
131.36k
196.31k (x1.49)
Test#2 (FP)
198.51k
290.5k (x1.46)
Test#3 (Generic, ZIP)
97.27k
143.95k (x1.48)
Test#1 (Memory)
13.4k
64.92k (x4.85)
TOTAL
440.54k
695.69k (x1.58)
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
3800X
3900X
Test#1 (Integers)
17.1k
16.73k (x0.98)
Test#2 (FP)
26.59k
24.74k (x0.93)
Test#3 (Generic, ZIP)
8.91k
8.82k (x0.99)
Test#1 (Memory)
23.21k
22.22k (x0.96)
TOTAL
75.81k
72.51k (x0.96)
Multithread
3800X
3900X
Test#1 (Integers)
172.04k
248.24k (x1.44)
Test#2 (FP)
214.03k
309.66k (x1.45)
Test#3 (Generic, ZIP)
97.1k
140.01k (x1.44)
Test#1 (Memory)
14.57k
58.39k (x4.01)
TOTAL
497.74k
756.3k (x1.52)
Performance/W
3800X
3900X
Test#1 (Integers)
1638 points/W
2364 points/W
Test#2 (FP)
2038 points/W
2949 points/W
Test#3 (Generic, ZIP)
925 points/W
1333 points/W
Test#1 (Memory)
139 points/W
556 points/W
TOTAL
4740 points/W
7203 points/W
Performance/GHz
3800X
3900X
Test#1 (Integers)
3799 points/GHz
3638 points/GHz
Test#2 (FP)
5909 points/GHz
5377 points/GHz
Test#3 (Generic, ZIP)
1981 points/GHz
1917 points/GHz
Test#1 (Memory)
5158 points/GHz
4831 points/GHz
TOTAL
16847 points/GHz
15763 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4