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Ryzen 7 5800X vs Ryzen 9 7945HX


Description
The 5800X is based on Zen 3 architecture while the 7945HX is based on Zen 4.

Using the multithread performance as a reference, the 5800X gets a score of 558.4 k points while the 7945HX gets 1313.9 k points.

Summarizing, the 7945HX is 2.4 times faster than the 5800X. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a20f12
a60f12
Core
Vermeer
Dragon Range
Architecture
Zen 3
Base frecuency
3.8 GHz
2.5 GHz
Boost frecuency
4.7 GHz
5.4 GHz
Socket
AM4
BGA-FL1
Cores/Threads
8/16
16/32
TDP
105 W
55 W
Cache L1 (d+i)
8x32+8x32 kB
16x32+16x32 kB
Cache L2
8x512 kB
16x1024 kB
Cache L3
32768 kB
65536 kB
Date
November 2020
January 2023
Mean monothread perf.
89.53k points
113.07k points
Mean multithread perf.
558.41k points
1313.94k 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
5800X
7945HX
Test#1 (Integers)
24.3k
37.43k (x1.54)
Test#2 (FP)
26.46k
30.7k (x1.16)
Test#3 (Generic, ZIP)
12.18k
15.16k (x1.24)
Test#1 (Memory)
26.58k
29.78k (x1.12)
TOTAL
89.53k
113.07k (x1.26)

Multithread

5800X

7945HX
Test#1 (Integers)
187.4k
556.68k (x2.97)
Test#2 (FP)
246.12k
482.32k (x1.96)
Test#3 (Generic, ZIP)
113.16k
225.46k (x1.99)
Test#1 (Memory)
11.74k
49.48k (x4.22)
TOTAL
558.41k
1313.94k (x2.35)

Performance/W
5800X
7945HX
Test#1 (Integers)
1785 points/W
10121 points/W
Test#2 (FP)
2344 points/W
8770 points/W
Test#3 (Generic, ZIP)
1078 points/W
4099 points/W
Test#1 (Memory)
112 points/W
900 points/W
TOTAL
5318 points/W
23890 points/W

Performance/GHz
5800X
7945HX
Test#1 (Integers)
5170 points/GHz
6932 points/GHz
Test#2 (FP)
5631 points/GHz
5685 points/GHz
Test#3 (Generic, ZIP)
2592 points/GHz
2807 points/GHz
Test#1 (Memory)
5656 points/GHz
5515 points/GHz
TOTAL
19049 points/GHz
20939 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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

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.


Test#1 (Integers) [points vs time]

grafica bm.hardlimit.com


Test#2 (FP) [points vs time]

grafica bm.hardlimit.com


Test#3 (Generic, ZIP) [points vs time]

grafica bm.hardlimit.com


Test#1 (Memory) [points vs time]

grafica bm.hardlimit.com

Hardlimit Benchmark Central - Ver. 3.11.4