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Core i9-11900KB vs i7-11800H (ES)


Description
Both models i9-11900KB and i7-11800H (ES) are based on Tiger Lake architecture.

It’s the 11th generation of Core CPUs and it’s manufactured in the 10nm SuperFin process.

Using the multithread performance as a reference, the i9-11900KB gets a score of 537.2 k points while the i7-11800H (ES) gets 709.9 k points.

Summarizing, the i7-11800H (ES) 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
806d1
806d0
Core
Tiger Lake-H
Tiger Lake-H
Architecture
Base frecuency
3.3 GHz
2.3 GHz
Boost frecuency
4.9 GHz
4.6 GHz
Socket
BGA 1787
BGA 1787
Cores/Threads
8/16
8/16
TDP
65 W
45 W
Cache L1 (d+i)
8x32+8x48 kB
8x32+8x48 kB
Cache L2
8x1280 kB
8x1280 kB
Cache L3
24576 kB
24576 kB
Date
July 2021
May 2021
Mean monothread perf.
63.79k points
81.62k points
Mean multithread perf.
537.18k points
709.85k 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
i9-11900KB
i7-11800H (ES)
Test#1 (Integers)
24.09k
30.84k (x1.28)
Test#2 (FP)
19.54k
26.38k (x1.35)
Test#3 (Generic, ZIP)
8.48k
12.66k (x1.49)
Test#1 (Memory)
11.68k
11.74k (x1)
TOTAL
63.79k
81.62k (x1.28)

Multithread

i9-11900KB

i7-11800H (ES)
Test#1 (Integers)
220.79k
294.86k (x1.34)
Test#2 (FP)
225.98k
280.92k (x1.24)
Test#3 (Generic, ZIP)
79.1k
113.9k (x1.44)
Test#1 (Memory)
11.32k
20.16k (x1.78)
TOTAL
537.18k
709.85k (x1.32)

Performance/W
i9-11900KB
i7-11800H (ES)
Test#1 (Integers)
3397 points/W
6553 points/W
Test#2 (FP)
3477 points/W
6243 points/W
Test#3 (Generic, ZIP)
1217 points/W
2531 points/W
Test#1 (Memory)
174 points/W
448 points/W
TOTAL
8264 points/W
15774 points/W

Performance/GHz
i9-11900KB
i7-11800H (ES)
Test#1 (Integers)
4917 points/GHz
6705 points/GHz
Test#2 (FP)
3988 points/GHz
5734 points/GHz
Test#3 (Generic, ZIP)
1730 points/GHz
2752 points/GHz
Test#1 (Memory)
2384 points/GHz
2552 points/GHz
TOTAL
13018 points/GHz
17744 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