| | | | | | |

Ryzen 7 7840HS vs 3800XT


Description
The 7840HS is based on Zen 4 architecture while the 3800XT is based on Zen 2.

Using the multithread performance as a reference, the 7840HS gets a score of 622.3 k points while the 3800XT gets 508.9 k points.

Summarizing, the 7840HS is 1.2 times faster than the 3800XT. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a70f41
870f10
Core
Phoenix
Matisse
Architecture
Zen 4
Base frecuency
3.8 GHz
3.9 GHz
Boost frecuency
5.1 GHz
4.7 GHz
Socket
BGA-FP7r2
AM4
Cores/Threads
8/16
8/16
TDP
35 W
105 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x1024 kB
8x512 kB
Cache L3
16384 kB
2x16384 kB
Date
January 2023
July 2020
Mean monothread perf.
91.11k points
78.2k points
Mean multithread perf.
622.34k points
508.89k 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
3800XT
Test#1 (Integers)
31.57k
17.57k (x0.56)
Test#2 (FP)
25.2k
27.38k (x1.09)
Test#3 (Generic, ZIP)
12.42k
9.35k (x0.75)
Test#1 (Memory)
21.93k
23.9k (x1.09)
TOTAL
91.11k
78.2k (x0.86)

Multithread

7840HS

3800XT
Test#1 (Integers)
265.26k
176.08k (x0.66)
Test#2 (FP)
226.13k
219.88k (x0.97)
Test#3 (Generic, ZIP)
114.46k
100k (x0.87)
Test#1 (Memory)
16.49k
12.93k (x0.78)
TOTAL
622.34k
508.89k (x0.82)

Performance/W
7840HS
3800XT
Test#1 (Integers)
7579 points/W
1677 points/W
Test#2 (FP)
6461 points/W
2094 points/W
Test#3 (Generic, ZIP)
3270 points/W
952 points/W
Test#1 (Memory)
471 points/W
123 points/W
TOTAL
17781 points/W
4847 points/W

Performance/GHz
7840HS
3800XT
Test#1 (Integers)
6190 points/GHz
3738 points/GHz
Test#2 (FP)
4941 points/GHz
5827 points/GHz
Test#3 (Generic, ZIP)
2436 points/GHz
1989 points/GHz
Test#1 (Memory)
4299 points/GHz
5085 points/GHz
TOTAL
17866 points/GHz
16638 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