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Ryzen 9 5900HX vs Ryzen 7 5800H


Description
Both models 5900HX and 5800H are based on Zen 3 architecture.

Zen 3 uses TSMC’s 7nm process, still uses the AM4 socket and has up yo 32MB of L3 cache per CCX.

Using the multithread performance as a reference, the 5900HX gets a score of 421.1 k points while the 5800H gets 426.9 k points.

Summarizing, the 5800H is 1 times faster than the 5900HX. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a50f00
a50f00
Core
Cezanne
Cezanne
Architecture
Base frecuency
3.3 GHz
3.2 GHz
Boost frecuency
4.6 GHz
4.4 GHz
Socket
BGA1140-FP6
BGA 1140
Cores/Threads
8/16
8/16
TDP
45 W
45 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x512 kB
8x512 kB
Cache L3
16384 kB
16384 kB
Date
January 2021
February 2021
Mean monothread perf.
85.76k points
74.56k points
Mean multithread perf.
421.05k points
426.9k 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
5900HX
5800H
Test#1 (Integers)
23.29k
20.37k (x0.87)
Test#2 (FP)
25.89k
22.52k (x0.87)
Test#3 (Generic, ZIP)
11.75k
10.18k (x0.87)
Test#1 (Memory)
24.83k
21.49k (x0.87)
TOTAL
85.76k
74.56k (x0.87)

Multithread

5900HX

5800H
Test#1 (Integers)
138.16k
144.01k (x1.04)
Test#2 (FP)
192.12k
191.86k (x1)
Test#3 (Generic, ZIP)
80.84k
84.53k (x1.05)
Test#1 (Memory)
9.93k
6.5k (x0.65)
TOTAL
421.05k
426.9k (x1.01)

Performance/W
5900HX
5800H
Test#1 (Integers)
3070 points/W
3200 points/W
Test#2 (FP)
4269 points/W
4264 points/W
Test#3 (Generic, ZIP)
1796 points/W
1878 points/W
Test#1 (Memory)
221 points/W
144 points/W
TOTAL
9357 points/W
9487 points/W

Performance/GHz
5900HX
5800H
Test#1 (Integers)
5064 points/GHz
4630 points/GHz
Test#2 (FP)
5628 points/GHz
5117 points/GHz
Test#3 (Generic, ZIP)
2555 points/GHz
2314 points/GHz
Test#1 (Memory)
5398 points/GHz
4883 points/GHz
TOTAL
18644 points/GHz
16944 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