Core i9-11900K vs i9-12900KF
Description
The i9-11900K is based on Rocket Lake architecture while the i9-12900KF is based on Alder Lake.
Using the multithread performance as a reference, the i9-11900K gets a score of 748 k points while the i9-12900KF gets 1219.3 k points.
Summarizing, the i9-12900KF is 1.6 times faster than the i9-11900K. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i9-11900K gets a score of 748 k points while the i9-12900KF gets 1219.3 k points.
Summarizing, the i9-12900KF is 1.6 times faster than the i9-11900K. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
a0671
90672
Core
Rocket Lake-S
Alder Lake-S
Base frecuency
3.5 GHz
3.2 GHz
Boost frecuency
5.3 GHz
5.2 GHz
Socket
LGA 1200
LGA 1700
Cores/Threads
8/16
16/24
TDP
125 W
125 W
Cache L1 (d+i)
8x32+8x48 kB
8x32/8x64+8x48/8x32 kB
Cache L2
8x512 kB
8x1280+8x2048 kB
Cache L3
16386 kB
30720 kB
Date
March 2021
November 2021
Mean monothread perf.
101.11k points
120.97k points
Mean multithread perf.
748.02k 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
i9-11900K
i9-12900KF
Test#1 (Integers)
36.08k
57.05k (x1.58)
Test#2 (FP)
30.19k
29.66k (x0.98)
Test#3 (Generic, ZIP)
12.96k
16.48k (x1.27)
Test#1 (Memory)
21.88k
17.78k (x0.81)
TOTAL
101.11k
120.97k (x1.2)
Multithread
i9-11900K
i9-12900KF
Test#1 (Integers)
311.76k
546.04k (x1.75)
Test#2 (FP)
314.01k
437.01k (x1.39)
Test#3 (Generic, ZIP)
112.23k
211.36k (x1.88)
Test#1 (Memory)
10.02k
24.92k (x2.49)
TOTAL
748.02k
1219.33k (x1.63)
Performance/W
i9-11900K
i9-12900KF
Test#1 (Integers)
2494 points/W
4368 points/W
Test#2 (FP)
2512 points/W
3496 points/W
Test#3 (Generic, ZIP)
898 points/W
1691 points/W
Test#1 (Memory)
80 points/W
199 points/W
TOTAL
5984 points/W
9755 points/W
Performance/GHz
i9-11900K
i9-12900KF
Test#1 (Integers)
6807 points/GHz
10972 points/GHz
Test#2 (FP)
5695 points/GHz
5704 points/GHz
Test#3 (Generic, ZIP)
2446 points/GHz
3170 points/GHz
Test#1 (Memory)
4129 points/GHz
3419 points/GHz
TOTAL
19077 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4