Ryzen 7 3700X vs Ryzen 9 3900
Description
Both models 3700X 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 3700X gets a score of 491.2 k points while the 3900 gets 687.5 k points.
Summarizing, the 3900 is 1.4 times faster than the 3700X. 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 3700X gets a score of 491.2 k points while the 3900 gets 687.5 k points.
Summarizing, the 3900 is 1.4 times faster than the 3700X. 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
3.6 GHz
3.1 GHz
Boost frecuency
4.4 GHz
4.3 GHz
Socket
AM4
AM4
Cores/Threads
8/16
12/24
TDP
65 W
65 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
September 2019
Mean monothread perf.
74.75k points
74.97k points
Mean multithread perf.
491.15k points
687.5k 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
3700X
3900
Test#1 (Integers)
16.81k
16.85k (x1)
Test#2 (FP)
26.39k
26.03k (x0.99)
Test#3 (Generic, ZIP)
8.82k
9.54k (x1.08)
Test#1 (Memory)
22.73k
22.55k (x0.99)
TOTAL
74.75k
74.97k (x1)
Multithread
3700X
3900
Test#1 (Integers)
170.29k
229.41k (x1.35)
Test#2 (FP)
213.21k
292.81k (x1.37)
Test#3 (Generic, ZIP)
96.03k
128.48k (x1.34)
Test#1 (Memory)
11.62k
36.8k (x3.17)
TOTAL
491.15k
687.5k (x1.4)
Performance/W
3700X
3900
Test#1 (Integers)
2620 points/W
3529 points/W
Test#2 (FP)
3280 points/W
4505 points/W
Test#3 (Generic, ZIP)
1477 points/W
1977 points/W
Test#1 (Memory)
179 points/W
566 points/W
TOTAL
7556 points/W
10577 points/W
Performance/GHz
3700X
3900
Test#1 (Integers)
3821 points/GHz
3920 points/GHz
Test#2 (FP)
5998 points/GHz
6054 points/GHz
Test#3 (Generic, ZIP)
2005 points/GHz
2218 points/GHz
Test#1 (Memory)
5166 points/GHz
5243 points/GHz
TOTAL
16990 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