Ryzen 9 7945HX vs 3900X
Description
The 7945HX is based on Zen 4 architecture while the 3900X is based on Zen 2.
Using the multithread performance as a reference, the 7945HX gets a score of 1313.9 k points while the 3900X gets 756.3 k points.
Summarizing, the 7945HX is 1.7 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 7945HX gets a score of 1313.9 k points while the 3900X gets 756.3 k points.
Summarizing, the 7945HX is 1.7 times faster than the 3900X. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
a60f12
870f10
Core
Dragon Range
Matisse
Base frecuency
2.5 GHz
3.8 GHz
Boost frecuency
5.4 GHz
4.6 GHz
Socket
BGA-FL1
AM4
Cores/Threads
16/32
12/24
TDP
55 W
105 W
Cache L1 (d+i)
16x32+16x32 kB
12x32+12x32 kB
Cache L2
16x1024 kB
12x512 kB
Cache L3
65536 kB
4x16384 kB
Date
January 2023
July 2019
Mean monothread perf.
113.07k points
72.51k points
Mean multithread perf.
1313.94k 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
7945HX
3900X
Test#1 (Integers)
37.43k
16.73k (x0.45)
Test#2 (FP)
30.7k
24.74k (x0.81)
Test#3 (Generic, ZIP)
15.16k
8.82k (x0.58)
Test#1 (Memory)
29.78k
22.22k (x0.75)
TOTAL
113.07k
72.51k (x0.64)
Multithread
7945HX
3900X
Test#1 (Integers)
556.68k
248.24k (x0.45)
Test#2 (FP)
482.32k
309.66k (x0.64)
Test#3 (Generic, ZIP)
225.46k
140.01k (x0.62)
Test#1 (Memory)
49.48k
58.39k (x1.18)
TOTAL
1313.94k
756.3k (x0.58)
Performance/W
7945HX
3900X
Test#1 (Integers)
10121 points/W
2364 points/W
Test#2 (FP)
8770 points/W
2949 points/W
Test#3 (Generic, ZIP)
4099 points/W
1333 points/W
Test#1 (Memory)
900 points/W
556 points/W
TOTAL
23890 points/W
7203 points/W
Performance/GHz
7945HX
3900X
Test#1 (Integers)
6932 points/GHz
3638 points/GHz
Test#2 (FP)
5685 points/GHz
5377 points/GHz
Test#3 (Generic, ZIP)
2807 points/GHz
1917 points/GHz
Test#1 (Memory)
5515 points/GHz
4831 points/GHz
TOTAL
20939 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