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Core i9-12900KF vs Ryzen 9 5900X


Description
The i9-12900KF is based on Alder Lake architecture while the 5900X is based on Zen 3.

Using the multithread performance as a reference, the i9-12900KF gets a score of 1219.3 k points while the 5900X gets 814.7 k points.

Summarizing, the i9-12900KF is 1.5 times faster than the 5900X. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
a20f12
Core
Alder Lake-S
Vermeer
Architecture
Base frecuency
3.2 GHz
3.7 GHz
Boost frecuency
5.2 GHz
4.8 GHz
Socket
LGA 1700
AM4
Cores/Threads
16/24
12/24
TDP
125 W
105 W
Cache L1 (d+i)
8x32/8x64+8x48/8x32 kB
12x32+12x32 kB
Cache L2
8x1280+8x2048 kB
12x512 kB
Cache L3
30720 kB
2x32768 kB
Date
November 2021
November 2020
Mean monothread perf.
120.97k points
83.5k points
Mean multithread perf.
1219.33k points
814.74k 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
i9-12900KF
5900X
Test#1 (Integers)
57.05k
22.6k (x0.4)
Test#2 (FP)
29.66k
24.85k (x0.84)
Test#3 (Generic, ZIP)
16.48k
11.25k (x0.68)
Test#1 (Memory)
17.78k
24.8k (x1.4)
TOTAL
120.97k
83.5k (x0.69)

Multithread

i9-12900KF

5900X
Test#1 (Integers)
546.04k
258.21k (x0.47)
Test#2 (FP)
437.01k
342.24k (x0.78)
Test#3 (Generic, ZIP)
211.36k
155.3k (x0.73)
Test#1 (Memory)
24.92k
59k (x2.37)
TOTAL
1219.33k
814.74k (x0.67)

Performance/W
i9-12900KF
5900X
Test#1 (Integers)
4368 points/W
2459 points/W
Test#2 (FP)
3496 points/W
3259 points/W
Test#3 (Generic, ZIP)
1691 points/W
1479 points/W
Test#1 (Memory)
199 points/W
562 points/W
TOTAL
9755 points/W
7759 points/W

Performance/GHz
i9-12900KF
5900X
Test#1 (Integers)
10972 points/GHz
4709 points/GHz
Test#2 (FP)
5704 points/GHz
5177 points/GHz
Test#3 (Generic, ZIP)
3170 points/GHz
2343 points/GHz
Test#1 (Memory)
3419 points/GHz
5167 points/GHz
TOTAL
23264 points/GHz
17396 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