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Core i7-11700K vs Ryzen 9 3900


Description
The i7-11700K is based on Rocket Lake architecture while the 3900 is based on Zen 2.

Using the multithread performance as a reference, the i7-11700K gets a score of 742.2 k points while the 3900 gets 687.5 k points.

Summarizing, the i7-11700K is 1.1 times faster than the 3900. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0671
870f10
Core
Rocket Lake-S
Matisse
Architecture
Base frecuency
3.6 GHz
3.1 GHz
Boost frecuency
5 GHz
4.3 GHz
Socket
LGA 1200
AM4
Cores/Threads
8/16
12/24
TDP
125 W
65 W
Cache L1 (d+i)
8x32+8x48 kB
12x32+12x32 kB
Cache L2
8x512 kB
12x512 kB
Cache L3
16384 kB
4x16384 kB
Date
March 2021
September 2019
Mean monothread perf.
99.57k points
74.97k points
Mean multithread perf.
742.15k points
687.5k 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
3900
Test#1 (Integers)
36.24k
16.85k (x0.47)
Test#2 (FP)
28.87k
26.03k (x0.9)
Test#3 (Generic, ZIP)
12.76k
9.54k (x0.75)
Test#1 (Memory)
21.7k
22.55k (x1.04)
TOTAL
99.57k
74.97k (x0.75)

Multithread

i7-11700K

3900
Test#1 (Integers)
315.15k
229.41k (x0.73)
Test#2 (FP)
303.07k
292.81k (x0.97)
Test#3 (Generic, ZIP)
111.09k
128.48k (x1.16)
Test#1 (Memory)
12.85k
36.8k (x2.86)
TOTAL
742.15k
687.5k (x0.93)

Performance/W
i7-11700K
3900
Test#1 (Integers)
2521 points/W
3529 points/W
Test#2 (FP)
2425 points/W
4505 points/W
Test#3 (Generic, ZIP)
889 points/W
1977 points/W
Test#1 (Memory)
103 points/W
566 points/W
TOTAL
5937 points/W
10577 points/W

Performance/GHz
i7-11700K
3900
Test#1 (Integers)
7247 points/GHz
3920 points/GHz
Test#2 (FP)
5775 points/GHz
6054 points/GHz
Test#3 (Generic, ZIP)
2551 points/GHz
2218 points/GHz
Test#1 (Memory)
4341 points/GHz
5243 points/GHz
TOTAL
19914 points/GHz
17435 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