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Ryzen 9 3950X vs Core i7-12700K


Description
The 3950X is based on Zen 2 architecture while the i7-12700K is based on Alder Lake.

Using the multithread performance as a reference, the 3950X gets a score of 959.8 k points while the i7-12700K gets 1034.1 k points.

Summarizing, the i7-12700K is 1.1 times faster than the 3950X. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
870f10
90672
Core
Matisse
Alder Lake
Architecture
Base frecuency
3.5 GHz
2.7 GHz
Boost frecuency
4.7 GHz
5 GHz
Socket
AM4
LGA 1700
Cores/Threads
16/32
12/20
TDP
105 W
190 W
Cache L1 (d+i)
16x32+16x32 kB
8x32/4x64+8x48/4x32 kB
Cache L2
16x512 kB
8x1280+4x2048 kB
Cache L3
4x16384 kB
25600 kB
Date
November 2019
November 2021
Mean monothread perf.
72.95k points
110.2k points
Mean multithread perf.
959.77k points
1034.06k 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
3950X
i7-12700K
Test#1 (Integers)
16.49k
52.13k (x3.16)
Test#2 (FP)
26.16k
28.97k (x1.11)
Test#3 (Generic, ZIP)
7.9k
15.04k (x1.9)
Test#1 (Memory)
22.4k
14.07k (x0.63)
TOTAL
72.95k
110.2k (x1.51)

Multithread

3950X

i7-12700K
Test#1 (Integers)
334.49k
458.8k (x1.37)
Test#2 (FP)
423.74k
377.45k (x0.89)
Test#3 (Generic, ZIP)
187.85k
171.31k (x0.91)
Test#1 (Memory)
13.69k
26.51k (x1.94)
TOTAL
959.77k
1034.06k (x1.08)

Performance/W
3950X
i7-12700K
Test#1 (Integers)
3186 points/W
2415 points/W
Test#2 (FP)
4036 points/W
1987 points/W
Test#3 (Generic, ZIP)
1789 points/W
902 points/W
Test#1 (Memory)
130 points/W
140 points/W
TOTAL
9141 points/W
5442 points/W

Performance/GHz
3950X
i7-12700K
Test#1 (Integers)
3509 points/GHz
10425 points/GHz
Test#2 (FP)
5566 points/GHz
5794 points/GHz
Test#3 (Generic, ZIP)
1681 points/GHz
3008 points/GHz
Test#1 (Memory)
4765 points/GHz
2813 points/GHz
TOTAL
15522 points/GHz
22040 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