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Core i9-9900K vs i9-11900K


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

Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i9-11900K gets 788.9 k points.

Summarizing, the i9-11900K is 1.4 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ec
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
16384 kB
16386 kB
Date
October 2018
March 2021
Mean monothread perf.
86.24k points
106.41k points
Mean multithread perf.
545.3k 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
i9-9900K
i9-11900K
Test#1 (Integers)
33.62k
38.06k (x1.13)
Test#2 (FP)
30.02k
31.54k (x1.05)
Test#3 (Generic, ZIP)
7.17k
13.5k (x1.88)
Test#1 (Memory)
15.43k
23.3k (x1.51)
TOTAL
86.24k
106.41k (x1.23)

Multithread

i9-9900K

i9-11900K
Test#1 (Integers)
248.93k
327.93k (x1.32)
Test#2 (FP)
224.43k
329.16k (x1.47)
Test#3 (Generic, ZIP)
53.39k
118.88k (x2.23)
Test#1 (Memory)
18.54k
12.98k (x0.7)
TOTAL
545.3k
788.94k (x1.45)

Performance/W
i9-9900K
i9-11900K
Test#1 (Integers)
2620 points/W
2623 points/W
Test#2 (FP)
2362 points/W
2633 points/W
Test#3 (Generic, ZIP)
562 points/W
951 points/W
Test#1 (Memory)
195 points/W
104 points/W
TOTAL
5740 points/W
6312 points/W

Performance/GHz
i9-9900K
i9-11900K
Test#1 (Integers)
6724 points/GHz
7182 points/GHz
Test#2 (FP)
6003 points/GHz
5952 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
2547 points/GHz
Test#1 (Memory)
3087 points/GHz
4397 points/GHz
TOTAL
17247 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