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Core i9-11900K vs i9-10900KF


Description
The i9-11900K is based on Rocket Lake architecture while the i9-10900KF is based on Comet Lake.

Using the multithread performance as a reference, the i9-11900K gets a score of 788.9 k points while the i9-10900KF gets 825.5 k points.

Summarizing, the i9-10900KF is 1 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
a0655
Core
Rocket Lake-S
Comet Lake-S
Architecture
Base frecuency
3.5 GHz
3.7 GHz
Boost frecuency
5.3 GHz
5.2 GHz
Socket
LGA 1200
LGA 1200
Cores/Threads
8/16
10/20
TDP
125 W
125 W
Cache L1 (d+i)
8x32+8x48 kB
10x32+10x32 kB
Cache L2
8x512 kB
10x256 kB
Cache L3
16386 kB
20480 kB
Date
March 2021
April 2020
Mean monothread perf.
106.41k points
90.37k points
Mean multithread perf.
788.94k points
825.47k 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
i9-10900KF
Test#1 (Integers)
38.06k
35.87k (x0.94)
Test#2 (FP)
31.54k
31.43k (x1)
Test#3 (Generic, ZIP)
13.5k
7.34k (x0.54)
Test#1 (Memory)
23.3k
15.73k (x0.67)
TOTAL
106.41k
90.37k (x0.85)

Multithread

i9-11900K

i9-10900KF
Test#1 (Integers)
327.93k
377.56k (x1.15)
Test#2 (FP)
329.16k
347.59k (x1.06)
Test#3 (Generic, ZIP)
118.88k
88.08k (x0.74)
Test#1 (Memory)
12.98k
12.24k (x0.94)
TOTAL
788.94k
825.47k (x1.05)

Performance/W
i9-11900K
i9-10900KF
Test#1 (Integers)
2623 points/W
3020 points/W
Test#2 (FP)
2633 points/W
2781 points/W
Test#3 (Generic, ZIP)
951 points/W
705 points/W
Test#1 (Memory)
104 points/W
98 points/W
TOTAL
6312 points/W
6604 points/W

Performance/GHz
i9-11900K
i9-10900KF
Test#1 (Integers)
7182 points/GHz
6898 points/GHz
Test#2 (FP)
5952 points/GHz
6044 points/GHz
Test#3 (Generic, ZIP)
2547 points/GHz
1411 points/GHz
Test#1 (Memory)
4397 points/GHz
3025 points/GHz
TOTAL
20077 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