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Core i9-9900K vs i9-12900KF


Description
The i9-9900K is based on Coffee Lake architecture while the i9-12900KF is based on Alder Lake.

Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i9-12900KF gets 1219.3 k points.

Summarizing, the i9-12900KF is 2.2 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ec
90672
Core
Coffee Lake-S
Alder Lake-S
Architecture
Base frecuency
3.6 GHz
3.2 GHz
Boost frecuency
5 GHz
5.2 GHz
Socket
LGA 1151
LGA 1700
Cores/Threads
8/16
16/24
TDP
95 W
125 W
Cache L1 (d+i)
8x32+8x32 kB
8x32/8x64+8x48/8x32 kB
Cache L2
8x256 kB
8x1280+8x2048 kB
Cache L3
16384 kB
30720 kB
Date
October 2018
November 2021
Mean monothread perf.
86.24k points
120.97k points
Mean multithread perf.
545.3k points
1219.33k 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
i9-9900K
i9-12900KF
Test#1 (Integers)
33.62k
57.05k (x1.7)
Test#2 (FP)
30.02k
29.66k (x0.99)
Test#3 (Generic, ZIP)
7.17k
16.48k (x2.3)
Test#1 (Memory)
15.43k
17.78k (x1.15)
TOTAL
86.24k
120.97k (x1.4)

Multithread

i9-9900K

i9-12900KF
Test#1 (Integers)
248.93k
546.04k (x2.19)
Test#2 (FP)
224.43k
437.01k (x1.95)
Test#3 (Generic, ZIP)
53.39k
211.36k (x3.96)
Test#1 (Memory)
18.54k
24.92k (x1.34)
TOTAL
545.3k
1219.33k (x2.24)

Performance/W
i9-9900K
i9-12900KF
Test#1 (Integers)
2620 points/W
4368 points/W
Test#2 (FP)
2362 points/W
3496 points/W
Test#3 (Generic, ZIP)
562 points/W
1691 points/W
Test#1 (Memory)
195 points/W
199 points/W
TOTAL
5740 points/W
9755 points/W

Performance/GHz
i9-9900K
i9-12900KF
Test#1 (Integers)
6724 points/GHz
10972 points/GHz
Test#2 (FP)
6003 points/GHz
5704 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
3170 points/GHz
Test#1 (Memory)
3087 points/GHz
3419 points/GHz
TOTAL
17247 points/GHz
23264 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