Ryzen 9 3900X vs 7950X
Description
The 3900X is based on Zen 2 architecture while the 7950X is based on Zen 4.
Using the multithread performance as a reference, the 3900X gets a score of 756.3 k points while the 7950X gets 1597.8 k points.
Summarizing, the 7950X is 2.1 times faster than the 3900X. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 3900X gets a score of 756.3 k points while the 7950X gets 1597.8 k points.
Summarizing, the 7950X is 2.1 times faster than the 3900X. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
870f10
a60f12
Core
Matisse
Raphael
Base frecuency
3.8 GHz
4.5 GHz
Boost frecuency
4.6 GHz
5.7 GHz
Socket
AM4
AM5
Cores/Threads
12/24
16/32
TDP
105 W
170 W
Cache L1 (d+i)
12x32+12x32 kB
16x32+16x32 kB
Cache L2
12x512 kB
16x1024 kB
Cache L3
4x16384 kB
131072 kB
Date
July 2019
September 2022
Mean monothread perf.
72.51k points
121.33k points
Mean multithread perf.
756.3k points
1597.79k 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
7950X
Test#1 (Integers)
4.46k
6.05k (x1.36)
Test#2 (FP)
18.46k
23.41k (x1.27)
Test#3 (Generic, ZIP)
8.05k
16.49k (x2.05)
Test#1 (Memory)
23.71k
34.35k (x1.45)
TOTAL
54.68k
80.3k (x1.47)
Multithread
3900X
7950X
Test#1 (Integers)
52.65k
128.82k (x2.45)
Test#2 (FP)
265.41k
465.79k (x1.75)
Test#3 (Generic, ZIP)
140.78k
289.43k (x2.06)
Test#1 (Memory)
46.91k
75.23k (x1.6)
TOTAL
505.76k
959.27k (x1.9)
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
7950X
Test#1 (Integers)
16.95k
26.86k (x1.58)
Test#2 (FP)
25.37k
30.05k (x1.18)
Test#3 (Generic, ZIP)
9.23k
16.15k (x1.75)
Test#1 (Memory)
24.83k
31.74k (x1.28)
TOTAL
76.38k
104.8k (x1.37)
Multithread
3900X
7950X
Test#1 (Integers)
196.31k
430.6k (x2.19)
Test#2 (FP)
290.5k
545.91k (x1.88)
Test#3 (Generic, ZIP)
143.95k
289.57k (x2.01)
Test#1 (Memory)
64.92k
64.33k (x0.99)
TOTAL
695.69k
1330.41k (x1.91)
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
7950X
Test#1 (Integers)
16.73k
40.61k (x2.43)
Test#2 (FP)
24.74k
31.82k (x1.29)
Test#3 (Generic, ZIP)
8.82k
16.63k (x1.89)
Test#1 (Memory)
22.22k
32.28k (x1.45)
TOTAL
72.51k
121.33k (x1.67)
Multithread
3900X
7950X
Test#1 (Integers)
248.24k
683.17k (x2.75)
Test#2 (FP)
309.66k
563.45k (x1.82)
Test#3 (Generic, ZIP)
140.01k
286.77k (x2.05)
Test#1 (Memory)
58.39k
64.4k (x1.1)
TOTAL
756.3k
1597.79k (x2.11)
Performance/W
3900X
7950X
Test#1 (Integers)
2364 points/W
4019 points/W
Test#2 (FP)
2949 points/W
3314 points/W
Test#3 (Generic, ZIP)
1333 points/W
1687 points/W
Test#1 (Memory)
556 points/W
379 points/W
TOTAL
7203 points/W
9399 points/W
Performance/GHz
3900X
7950X
Test#1 (Integers)
3638 points/GHz
7124 points/GHz
Test#2 (FP)
5377 points/GHz
5582 points/GHz
Test#3 (Generic, ZIP)
1917 points/GHz
2917 points/GHz
Test#1 (Memory)
4831 points/GHz
5663 points/GHz
TOTAL
15763 points/GHz
21286 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