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Core i9-12900KF vs i5-12400F


Description
Both models i9-12900KF and i5-12400F are based on Alder Lake architecture.

Alder Lake is the 12th generation of Intel Core. It uses the 10nm proccess and was the first to introduce a hybrid architecture with Performance cores and Efficiency cores.

Using the multithread performance as a reference, the i9-12900KF gets a score of 1219.3 k points while the i5-12400F gets 399.4 k points.

Summarizing, the i9-12900KF is 3.1 times faster than the i5-12400F. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
90675
Core
Alder Lake-S
Alder Lake-S
Architecture
Base frecuency
3.2 GHz
2.5 GHz
Boost frecuency
5.2 GHz
4.4 GHz
Socket
LGA 1700
LGA 1700
Cores/Threads
16/24
6/12
TDP
125 W
117 W
Cache L1 (d+i)
8x32/8x64+8x48/8x32 kB
6x32/0x64+6x48/0x32 kB
Cache L2
8x1280+8x2048 kB
6x1280+0x2048 kB
Cache L3
30720 kB
18432 kB
Date
November 2021
January 2022
Mean monothread perf.
120.97k points
76.46k points
Mean multithread perf.
1219.33k points
399.39k 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
i9-12900KF
i5-12400F
Test#1 (Integers)
28.96k
24.24k (x0.84)
Test#2 (FP)
30k
24.74k (x0.82)
Test#3 (Generic, ZIP)
16.94k
13.95k (x0.82)
Test#1 (Memory)
17.14k
14.47k (x0.84)
TOTAL
93.05k
77.41k (x0.83)

Multithread

i9-12900KF

i5-12400F
Test#1 (Integers)
166.25k
126.87k (x0.76)
Test#2 (FP)
172.03k
186.48k (x1.08)
Test#3 (Generic, ZIP)
96.95k
92.37k (x0.95)
Test#1 (Memory)
55.78k
15.45k (x0.28)
TOTAL
491.01k
421.18k (x0.86)

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
i5-12400F
Test#1 (Integers)
57.05k
33.85k (x0.59)
Test#2 (FP)
29.66k
20.33k (x0.69)
Test#3 (Generic, ZIP)
16.48k
10.51k (x0.64)
Test#1 (Memory)
17.78k
11.77k (x0.66)
TOTAL
120.97k
76.46k (x0.63)

Multithread

i9-12900KF

i5-12400F
Test#1 (Integers)
546.04k
174.21k (x0.32)
Test#2 (FP)
437.01k
141.31k (x0.32)
Test#3 (Generic, ZIP)
211.36k
64.86k (x0.31)
Test#1 (Memory)
24.92k
19.01k (x0.76)
TOTAL
1219.33k
399.39k (x0.33)

Performance/W
i9-12900KF
i5-12400F
Test#1 (Integers)
4368 points/W
1489 points/W
Test#2 (FP)
3496 points/W
1208 points/W
Test#3 (Generic, ZIP)
1691 points/W
554 points/W
Test#1 (Memory)
199 points/W
162 points/W
TOTAL
9755 points/W
3414 points/W

Performance/GHz
i9-12900KF
i5-12400F
Test#1 (Integers)
10972 points/GHz
7693 points/GHz
Test#2 (FP)
5704 points/GHz
4621 points/GHz
Test#3 (Generic, ZIP)
3170 points/GHz
2389 points/GHz
Test#1 (Memory)
3419 points/GHz
2675 points/GHz
TOTAL
23264 points/GHz
17378 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