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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 529.3 k points while the i9-12900KF gets 1219.3 k points.

Summarizing, the i9-12900KF is 2.3 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
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.
81.91k points
120.97k points
Mean multithread perf.
529.32k points
1219.33k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i9-9900K
i9-12900KF
Test#1 (Integers)
17.98k
28.96k (x1.61)
Test#2 (FP)
27.04k
30k (x1.11)
Test#3 (Generic, ZIP)
6.63k
16.94k (x2.56)
Test#1 (Memory)
13.6k
17.14k (x1.26)
TOTAL
65.24k
93.05k (x1.43)

Multithread

i9-9900K

i9-12900KF
Test#1 (Integers)
130.88k
166.25k (x1.27)
Test#2 (FP)
208.5k
172.03k (x0.83)
Test#3 (Generic, ZIP)
54.12k
96.95k (x1.79)
Test#1 (Memory)
8.91k
55.78k (x6.26)
TOTAL
402.41k
491.01k (x1.22)

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)
32.08k
57.05k (x1.78)
Test#2 (FP)
28.17k
29.66k (x1.05)
Test#3 (Generic, ZIP)
6.68k
16.48k (x2.47)
Test#1 (Memory)
14.98k
17.78k (x1.19)
TOTAL
81.91k
120.97k (x1.48)

Multithread

i9-9900K

i9-12900KF
Test#1 (Integers)
242.98k
546.04k (x2.25)
Test#2 (FP)
220.16k
437.01k (x1.99)
Test#3 (Generic, ZIP)
53.97k
211.36k (x3.92)
Test#1 (Memory)
12.22k
24.92k (x2.04)
TOTAL
529.32k
1219.33k (x2.3)

Performance/W
i9-9900K
i9-12900KF
Test#1 (Integers)
2558 points/W
4368 points/W
Test#2 (FP)
2317 points/W
3496 points/W
Test#3 (Generic, ZIP)
568 points/W
1691 points/W
Test#1 (Memory)
129 points/W
199 points/W
TOTAL
5572 points/W
9755 points/W

Performance/GHz
i9-9900K
i9-12900KF
Test#1 (Integers)
6417 points/GHz
10972 points/GHz
Test#2 (FP)
5634 points/GHz
5704 points/GHz
Test#3 (Generic, ZIP)
1335 points/GHz
3170 points/GHz
Test#1 (Memory)
2996 points/GHz
3419 points/GHz
TOTAL
16382 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