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Core i7-11700K vs Ryzen 7 7840HS


Description
The i7-11700K is based on Rocket Lake architecture while the 7840HS is based on Zen 4.

Using the multithread performance as a reference, the i7-11700K gets a score of 742.2 k points while the 7840HS gets 622.3 k points.

Summarizing, the i7-11700K is 1.2 times faster than the 7840HS. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0671
a70f41
Core
Rocket Lake-S
Phoenix
Architecture
Rocket Lake
Base frecuency
3.6 GHz
3.8 GHz
Boost frecuency
5 GHz
5.1 GHz
Socket
LGA 1200
BGA-FP7r2
Cores/Threads
8/16
8/16
TDP
125 W
35 W
Cache L1 (d+i)
8x32+8x48 kB
8x32+8x32 kB
Cache L2
8x512 kB
8x1024 kB
Cache L3
16384 kB
16384 kB
Date
March 2021
January 2023
Mean monothread perf.
99.57k points
91.11k points
Mean multithread perf.
742.15k points
622.34k 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
i7-11700K
7840HS
Test#1 (Integers)
36.24k
31.57k (x0.87)
Test#2 (FP)
28.87k
25.2k (x0.87)
Test#3 (Generic, ZIP)
12.76k
12.42k (x0.97)
Test#1 (Memory)
21.7k
21.93k (x1.01)
TOTAL
99.57k
91.11k (x0.92)

Multithread

i7-11700K

7840HS
Test#1 (Integers)
315.15k
265.26k (x0.84)
Test#2 (FP)
303.07k
226.13k (x0.75)
Test#3 (Generic, ZIP)
111.09k
114.46k (x1.03)
Test#1 (Memory)
12.85k
16.49k (x1.28)
TOTAL
742.15k
622.34k (x0.84)

Performance/W
i7-11700K
7840HS
Test#1 (Integers)
2521 points/W
7579 points/W
Test#2 (FP)
2425 points/W
6461 points/W
Test#3 (Generic, ZIP)
889 points/W
3270 points/W
Test#1 (Memory)
103 points/W
471 points/W
TOTAL
5937 points/W
17781 points/W

Performance/GHz
i7-11700K
7840HS
Test#1 (Integers)
7247 points/GHz
6190 points/GHz
Test#2 (FP)
5775 points/GHz
4941 points/GHz
Test#3 (Generic, ZIP)
2551 points/GHz
2436 points/GHz
Test#1 (Memory)
4341 points/GHz
4299 points/GHz
TOTAL
19914 points/GHz
17866 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