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


Description
Both models i7-11800H (ES) and i9-11900KB 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 i7-11800H (ES) gets a score of 709.9 k points while the i9-11900KB gets 537.2 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
806d0
806d1
Core
Tiger Lake-H
Tiger Lake-H
Architecture
Base frecuency
2.3 GHz
3.3 GHz
Boost frecuency
4.6 GHz
4.9 GHz
Socket
BGA 1787
BGA 1787
Cores/Threads
8/16
8/16
TDP
45 W
65 W
Cache L1 (d+i)
8x32+8x48 kB
8x32+8x48 kB
Cache L2
8x1280 kB
8x1280 kB
Cache L3
24576 kB
24576 kB
Date
May 2021
July 2021
Mean monothread perf.
81.62k points
63.79k points
Mean multithread perf.
709.85k 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
i7-11800H (ES)
i9-11900KB
Test#1 (Integers)
30.84k
24.09k (x0.78)
Test#2 (FP)
26.38k
19.54k (x0.74)
Test#3 (Generic, ZIP)
12.66k
8.48k (x0.67)
Test#1 (Memory)
11.74k
11.68k (x1)
TOTAL
81.62k
63.79k (x0.78)

Multithread

i7-11800H (ES)

i9-11900KB
Test#1 (Integers)
294.86k
220.79k (x0.75)
Test#2 (FP)
280.92k
225.98k (x0.8)
Test#3 (Generic, ZIP)
113.9k
79.1k (x0.69)
Test#1 (Memory)
20.16k
11.32k (x0.56)
TOTAL
709.85k
537.18k (x0.76)

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

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