Ryzen 7 7840HS vs Ryzen 9 3900X
Description
The 7840HS is based on Zen 4 architecture while the 3900X is based on Zen 2.
Using the multithread performance as a reference, the 7840HS gets a score of 622.3 k points while the 3900X gets 756.3 k points.
Summarizing, the 3900X is 1.2 times faster than the 7840HS. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 7840HS gets a score of 622.3 k points while the 3900X gets 756.3 k points.
Summarizing, the 3900X is 1.2 times faster than the 7840HS. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
a70f41
870f10
Core
Phoenix
Matisse
Base frecuency
3.8 GHz
3.8 GHz
Boost frecuency
5.1 GHz
4.6 GHz
Socket
BGA-FP7r2
AM4
Cores/Threads
8/16
12/24
TDP
35 W
105 W
Cache L1 (d+i)
8x32+8x32 kB
12x32+12x32 kB
Cache L2
8x1024 kB
12x512 kB
Cache L3
16384 kB
4x16384 kB
Date
January 2023
July 2019
Mean monothread perf.
91.11k points
72.51k points
Mean multithread perf.
622.34k points
756.3k 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
7840HS
3900X
Test#1 (Integers)
31.57k
16.73k (x0.53)
Test#2 (FP)
25.2k
24.74k (x0.98)
Test#3 (Generic, ZIP)
12.42k
8.82k (x0.71)
Test#1 (Memory)
21.93k
22.22k (x1.01)
TOTAL
91.11k
72.51k (x0.8)
Multithread
7840HS
3900X
Test#1 (Integers)
265.26k
248.24k (x0.94)
Test#2 (FP)
226.13k
309.66k (x1.37)
Test#3 (Generic, ZIP)
114.46k
140.01k (x1.22)
Test#1 (Memory)
16.49k
58.39k (x3.54)
TOTAL
622.34k
756.3k (x1.22)
Performance/W
7840HS
3900X
Test#1 (Integers)
7579 points/W
2364 points/W
Test#2 (FP)
6461 points/W
2949 points/W
Test#3 (Generic, ZIP)
3270 points/W
1333 points/W
Test#1 (Memory)
471 points/W
556 points/W
TOTAL
17781 points/W
7203 points/W
Performance/GHz
7840HS
3900X
Test#1 (Integers)
6190 points/GHz
3638 points/GHz
Test#2 (FP)
4941 points/GHz
5377 points/GHz
Test#3 (Generic, ZIP)
2436 points/GHz
1917 points/GHz
Test#1 (Memory)
4299 points/GHz
4831 points/GHz
TOTAL
17866 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