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Ryzen 9 7940HS vs Core i9-11900K


Description
The 7940HS is based on Zen 4 architecture while the i9-11900K is based on Rocket Lake.

Using the multithread performance as a reference, the 7940HS gets a score of 718.6 k points while the i9-11900K gets 748 k points.

Summarizing, the i9-11900K is 1 times faster than the 7940HS. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a70f41
a0671
Core
Phoenix
Rocket Lake-S
Architecture
Zen 4
Base frecuency
4 GHz
3.5 GHz
Boost frecuency
5.2 GHz
5.3 GHz
Socket
BGA-FP7r2
LGA 1200
Cores/Threads
8/16
8/16
TDP
35 W
125 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x48 kB
Cache L2
8x1024 kB
8x512 kB
Cache L3
16384 kB
16386 kB
Date
March 2023
March 2021
Mean monothread perf.
113.57k points
101.11k points
Mean multithread perf.
718.59k points
748.02k 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
7940HS
i9-11900K
Test#1 (Integers)
38.25k
36.08k (x0.94)
Test#2 (FP)
29.92k
30.19k (x1.01)
Test#3 (Generic, ZIP)
15.5k
12.96k (x0.84)
Test#1 (Memory)
29.89k
21.88k (x0.73)
TOTAL
113.57k
101.11k (x0.89)

Multithread

7940HS

i9-11900K
Test#1 (Integers)
309.6k
311.76k (x1.01)
Test#2 (FP)
260.4k
314.01k (x1.21)
Test#3 (Generic, ZIP)
128.56k
112.23k (x0.87)
Test#1 (Memory)
20.04k
10.02k (x0.5)
TOTAL
718.59k
748.02k (x1.04)

Performance/W
7940HS
i9-11900K
Test#1 (Integers)
8846 points/W
2494 points/W
Test#2 (FP)
7440 points/W
2512 points/W
Test#3 (Generic, ZIP)
3673 points/W
898 points/W
Test#1 (Memory)
573 points/W
80 points/W
TOTAL
20531 points/W
5984 points/W

Performance/GHz
7940HS
i9-11900K
Test#1 (Integers)
7355 points/GHz
6807 points/GHz
Test#2 (FP)
5755 points/GHz
5695 points/GHz
Test#3 (Generic, ZIP)
2981 points/GHz
2446 points/GHz
Test#1 (Memory)
5748 points/GHz
4129 points/GHz
TOTAL
21839 points/GHz
19077 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