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Core i9-9900KF vs i9-11900K


Description
The i9-9900KF is based on Coffee Lake architecture while the i9-11900K is based on Rocket Lake.

Using the multithread performance as a reference, the i9-9900KF gets a score of 592.9 k points while the i9-11900K gets 788.9 k points.

Summarizing, the i9-11900K is 1.3 times faster than the i9-9900KF. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ed
a0671
Core
Coffee Lake-S
Rocket Lake-S
Architecture
Base frecuency
3.6 GHz
3.5 GHz
Boost frecuency
5 GHz
5.3 GHz
Socket
LGA 1151
LGA 1200
Cores/Threads
8/16
8/16
TDP
95 W
125 W
Cache L1 (d+i)
8x32+8x32 kB
8x32+8x48 kB
Cache L2
8x256 kB
8x512 kB
Cache L3
16386 kB
16386 kB
Date
January 2019
March 2021
Mean monothread perf.
84.54k points
106.41k points
Mean multithread perf.
592.86k points
788.94k 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
i9-9900KF
i9-11900K
Test#1 (Integers)
33.03k
38.06k (x1.15)
Test#2 (FP)
29.52k
31.54k (x1.07)
Test#3 (Generic, ZIP)
6.55k
13.5k (x2.06)
Test#1 (Memory)
15.45k
23.3k (x1.51)
TOTAL
84.54k
106.41k (x1.26)

Multithread

i9-9900KF

i9-11900K
Test#1 (Integers)
276.22k
327.93k (x1.19)
Test#2 (FP)
250.61k
329.16k (x1.31)
Test#3 (Generic, ZIP)
57.2k
118.88k (x2.08)
Test#1 (Memory)
8.84k
12.98k (x1.47)
TOTAL
592.86k
788.94k (x1.33)

Performance/W
i9-9900KF
i9-11900K
Test#1 (Integers)
2908 points/W
2623 points/W
Test#2 (FP)
2638 points/W
2633 points/W
Test#3 (Generic, ZIP)
602 points/W
951 points/W
Test#1 (Memory)
93 points/W
104 points/W
TOTAL
6241 points/W
6312 points/W

Performance/GHz
i9-9900KF
i9-11900K
Test#1 (Integers)
6605 points/GHz
7182 points/GHz
Test#2 (FP)
5904 points/GHz
5952 points/GHz
Test#3 (Generic, ZIP)
1309 points/GHz
2547 points/GHz
Test#1 (Memory)
3090 points/GHz
4397 points/GHz
TOTAL
16909 points/GHz
20077 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