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Ryzen 7 7840HS vs Core i9-9900KF


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

Using the multithread performance as a reference, the 7840HS gets a score of 622.3 k points while the i9-9900KF gets 592.9 k points.

Summarizing, the 7840HS is 1 times faster than the i9-9900KF. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a70f41
906ed
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
16386 kB
Date
January 2023
January 2019
Mean monothread perf.
91.11k points
84.54k points
Mean multithread perf.
622.34k points
592.86k 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
i9-9900KF
Test#1 (Integers)
31.57k
33.03k (x1.05)
Test#2 (FP)
25.2k
29.52k (x1.17)
Test#3 (Generic, ZIP)
12.42k
6.55k (x0.53)
Test#1 (Memory)
21.93k
15.45k (x0.7)
TOTAL
91.11k
84.54k (x0.93)

Multithread

7840HS

i9-9900KF
Test#1 (Integers)
265.26k
276.22k (x1.04)
Test#2 (FP)
226.13k
250.61k (x1.11)
Test#3 (Generic, ZIP)
114.46k
57.2k (x0.5)
Test#1 (Memory)
16.49k
8.84k (x0.54)
TOTAL
622.34k
592.86k (x0.95)

Performance/W
7840HS
i9-9900KF
Test#1 (Integers)
7579 points/W
2908 points/W
Test#2 (FP)
6461 points/W
2638 points/W
Test#3 (Generic, ZIP)
3270 points/W
602 points/W
Test#1 (Memory)
471 points/W
93 points/W
TOTAL
17781 points/W
6241 points/W

Performance/GHz
7840HS
i9-9900KF
Test#1 (Integers)
6190 points/GHz
6605 points/GHz
Test#2 (FP)
4941 points/GHz
5904 points/GHz
Test#3 (Generic, ZIP)
2436 points/GHz
1309 points/GHz
Test#1 (Memory)
4299 points/GHz
3090 points/GHz
TOTAL
17866 points/GHz
16909 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