| | | | | | |

Core i9-10900K vs i9-11900KB


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

Using the multithread performance as a reference, the i9-10900K gets a score of 685.6 k points while the i9-11900KB gets 537.2 k points.

Summarizing, the i9-10900K is 1.3 times faster than the i9-11900KB. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0655
806d1
Core
Comet Lake-S
Tiger Lake-H
Architecture
Base frecuency
3.7 GHz
3.3 GHz
Boost frecuency
5.2 GHz
4.9 GHz
Socket
LGA 1200
BGA 1787
Cores/Threads
10/20
8/16
TDP
125 W
65 W
Cache L1 (d+i)
10x32+10x32 kB
8x32+8x48 kB
Cache L2
10x256 kB
8x1280 kB
Cache L3
20480 kB
24576 kB
Date
April 2020
July 2021
Mean monothread perf.
80.41k points
63.79k points
Mean multithread perf.
685.65k points
537.18k 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
i9-10900K
i9-11900KB
Test#1 (Integers)
32.67k
24.09k (x0.74)
Test#2 (FP)
28.49k
19.54k (x0.69)
Test#3 (Generic, ZIP)
6.53k
8.48k (x1.3)
Test#1 (Memory)
12.72k
11.68k (x0.92)
TOTAL
80.41k
63.79k (x0.79)

Multithread

i9-10900K

i9-11900KB
Test#1 (Integers)
307.39k
220.79k (x0.72)
Test#2 (FP)
298.47k
225.98k (x0.76)
Test#3 (Generic, ZIP)
72.94k
79.1k (x1.08)
Test#1 (Memory)
6.85k
11.32k (x1.65)
TOTAL
685.65k
537.18k (x0.78)

Performance/W
i9-10900K
i9-11900KB
Test#1 (Integers)
2459 points/W
3397 points/W
Test#2 (FP)
2388 points/W
3477 points/W
Test#3 (Generic, ZIP)
583 points/W
1217 points/W
Test#1 (Memory)
55 points/W
174 points/W
TOTAL
5485 points/W
8264 points/W

Performance/GHz
i9-10900K
i9-11900KB
Test#1 (Integers)
6282 points/GHz
4917 points/GHz
Test#2 (FP)
5479 points/GHz
3988 points/GHz
Test#3 (Generic, ZIP)
1257 points/GHz
1730 points/GHz
Test#1 (Memory)
2445 points/GHz
2384 points/GHz
TOTAL
15463 points/GHz
13018 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