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Ryzen 7 7840HS vs Core i9-9900K


Description
The 7840HS is based on Zen 4 architecture while the i9-9900K is based on Coffee Lake.

Using the multithread performance as a reference, the 7840HS gets a score of 622.3 k points while the i9-9900K gets 545.3 k points.

Summarizing, the 7840HS is 1.1 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a70f41
906ec
Core
Phoenix
Coffee Lake-S
Architecture
Zen 4
Base frecuency
3.8 GHz
3.6 GHz
Boost frecuency
5.1 GHz
5 GHz
Socket
BGA-FP7r2
LGA 1151
Cores/Threads
8/16
8/16
TDP
35 W
95 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x32 kB
Cache L2
8x1024 kB
8x256 kB
Cache L3
16384 kB
16384 kB
Date
January 2023
October 2018
Mean monothread perf.
91.11k points
86.24k points
Mean multithread perf.
622.34k points
545.3k 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
7840HS
i9-9900K
Test#1 (Integers)
31.57k
33.62k (x1.06)
Test#2 (FP)
25.2k
30.02k (x1.19)
Test#3 (Generic, ZIP)
12.42k
7.17k (x0.58)
Test#1 (Memory)
21.93k
15.43k (x0.7)
TOTAL
91.11k
86.24k (x0.95)

Multithread

7840HS

i9-9900K
Test#1 (Integers)
265.26k
248.93k (x0.94)
Test#2 (FP)
226.13k
224.43k (x0.99)
Test#3 (Generic, ZIP)
114.46k
53.39k (x0.47)
Test#1 (Memory)
16.49k
18.54k (x1.12)
TOTAL
622.34k
545.3k (x0.88)

Performance/W
7840HS
i9-9900K
Test#1 (Integers)
7579 points/W
2620 points/W
Test#2 (FP)
6461 points/W
2362 points/W
Test#3 (Generic, ZIP)
3270 points/W
562 points/W
Test#1 (Memory)
471 points/W
195 points/W
TOTAL
17781 points/W
5740 points/W

Performance/GHz
7840HS
i9-9900K
Test#1 (Integers)
6190 points/GHz
6724 points/GHz
Test#2 (FP)
4941 points/GHz
6003 points/GHz
Test#3 (Generic, ZIP)
2436 points/GHz
1434 points/GHz
Test#1 (Memory)
4299 points/GHz
3087 points/GHz
TOTAL
17866 points/GHz
17247 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