Ryzen 9 3900X vs 3900
Description
Both models 3900X and 3900 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 3900X gets a score of 756.3 k points while the 3900 gets 687.5 k points.
Summarizing, the 3900X is 1.1 times faster than the 3900. 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 3900X gets a score of 756.3 k points while the 3900 gets 687.5 k points.
Summarizing, the 3900X is 1.1 times faster than the 3900. 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
3.8 GHz
3.1 GHz
Boost frecuency
4.6 GHz
4.3 GHz
Socket
AM4
AM4
Cores/Threads
12/24
12/24
TDP
105 W
65 W
Cache L1 (d+i)
12x32+12x32 kB
12x32+12x32 kB
Cache L2
12x512 kB
12x512 kB
Cache L3
4x16384 kB
4x16384 kB
Date
July 2019
September 2019
Mean monothread perf.
72.51k points
74.97k points
Mean multithread perf.
756.3k points
687.5k 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
3900
Test#1 (Integers)
4.46k
4.39k (x0.98)
Test#2 (FP)
18.46k
16.99k (x0.92)
Test#3 (Generic, ZIP)
8.05k
7.74k (x0.96)
Test#1 (Memory)
23.71k
24.57k (x1.04)
TOTAL
54.68k
53.69k (x0.98)
Multithread
3900X
3900
Test#1 (Integers)
52.65k
48.45k (x0.92)
Test#2 (FP)
265.41k
230.81k (x0.87)
Test#3 (Generic, ZIP)
140.78k
122.82k (x0.87)
Test#1 (Memory)
46.91k
54.73k (x1.17)
TOTAL
505.76k
456.8k (x0.9)
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
3900
Test#1 (Integers)
17.35k
16.59k (x0.96)
Test#2 (FP)
25.87k
24.55k (x0.95)
Test#3 (Generic, ZIP)
8.72k
8.55k (x0.98)
Test#1 (Memory)
27.86k
26.28k (x0.94)
TOTAL
79.8k
75.97k (x0.95)
Multithread
3900X
3900
Test#1 (Integers)
201.57k
181.33k (x0.9)
Test#2 (FP)
284.41k
261.01k (x0.92)
Test#3 (Generic, ZIP)
145.16k
126.62k (x0.87)
Test#1 (Memory)
100.56k
66.64k (x0.66)
TOTAL
731.7k
635.6k (x0.87)
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
3900
Test#1 (Integers)
16.95k
16.16k (x0.95)
Test#2 (FP)
25.37k
23.75k (x0.94)
Test#3 (Generic, ZIP)
9.23k
9.32k (x1.01)
Test#1 (Memory)
24.83k
23.17k (x0.93)
TOTAL
76.38k
72.4k (x0.95)
Multithread
3900X
3900
Test#1 (Integers)
196.31k
174.73k (x0.89)
Test#2 (FP)
290.5k
275.63k (x0.95)
Test#3 (Generic, ZIP)
143.95k
125.65k (x0.87)
Test#1 (Memory)
64.92k
44.17k (x0.68)
TOTAL
695.69k
620.18k (x0.89)
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
3900
Test#1 (Integers)
16.73k
16.85k (x1.01)
Test#2 (FP)
24.74k
26.03k (x1.05)
Test#3 (Generic, ZIP)
8.82k
9.54k (x1.08)
Test#1 (Memory)
22.22k
22.55k (x1.01)
TOTAL
72.51k
74.97k (x1.03)
Multithread
3900X
3900
Test#1 (Integers)
248.24k
229.41k (x0.92)
Test#2 (FP)
309.66k
292.81k (x0.95)
Test#3 (Generic, ZIP)
140.01k
128.48k (x0.92)
Test#1 (Memory)
58.39k
36.8k (x0.63)
TOTAL
756.3k
687.5k (x0.91)
Performance/W
3900X
3900
Test#1 (Integers)
2364 points/W
3529 points/W
Test#2 (FP)
2949 points/W
4505 points/W
Test#3 (Generic, ZIP)
1333 points/W
1977 points/W
Test#1 (Memory)
556 points/W
566 points/W
TOTAL
7203 points/W
10577 points/W
Performance/GHz
3900X
3900
Test#1 (Integers)
3638 points/GHz
3920 points/GHz
Test#2 (FP)
5377 points/GHz
6054 points/GHz
Test#3 (Generic, ZIP)
1917 points/GHz
2218 points/GHz
Test#1 (Memory)
4831 points/GHz
5243 points/GHz
TOTAL
15763 points/GHz
17435 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