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Ryzen 9 7945HX vs 5900X


Description
The 7945HX is based on Zen 4 architecture while the 5900X is based on Zen 3.

Using the multithread performance as a reference, the 7945HX gets a score of 1313.9 k points while the 5900X gets 814.7 k points.

Summarizing, the 7945HX is 1.6 times faster than the 5900X. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a60f12
a20f12
Core
Dragon Range
Vermeer
Architecture
Zen 4
Base frecuency
2.5 GHz
3.7 GHz
Boost frecuency
5.4 GHz
4.8 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
2x32768 kB
Date
January 2023
November 2020
Mean monothread perf.
113.07k points
83.5k points
Mean multithread perf.
1313.94k points
814.74k 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
5900X
Test#1 (Integers)
37.43k
22.6k (x0.6)
Test#2 (FP)
30.7k
24.85k (x0.81)
Test#3 (Generic, ZIP)
15.16k
11.25k (x0.74)
Test#1 (Memory)
29.78k
24.8k (x0.83)
TOTAL
113.07k
83.5k (x0.74)

Multithread

7945HX

5900X
Test#1 (Integers)
556.68k
258.21k (x0.46)
Test#2 (FP)
482.32k
342.24k (x0.71)
Test#3 (Generic, ZIP)
225.46k
155.3k (x0.69)
Test#1 (Memory)
49.48k
59k (x1.19)
TOTAL
1313.94k
814.74k (x0.62)

Performance/W
7945HX
5900X
Test#1 (Integers)
10121 points/W
2459 points/W
Test#2 (FP)
8770 points/W
3259 points/W
Test#3 (Generic, ZIP)
4099 points/W
1479 points/W
Test#1 (Memory)
900 points/W
562 points/W
TOTAL
23890 points/W
7759 points/W

Performance/GHz
7945HX
5900X
Test#1 (Integers)
6932 points/GHz
4709 points/GHz
Test#2 (FP)
5685 points/GHz
5177 points/GHz
Test#3 (Generic, ZIP)
2807 points/GHz
2343 points/GHz
Test#1 (Memory)
5515 points/GHz
5167 points/GHz
TOTAL
20939 points/GHz
17396 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