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Core i7-12800H vs i9-11900KB


Description
The i7-12800H is based on Alder Lake architecture while the i9-11900KB is based on Tiger Lake.

Using the multithread performance as a reference, the i7-12800H gets a score of 467.4 k points while the i9-11900KB gets 537.2 k points.

Summarizing, the i9-11900KB is 1.1 times faster than the i7-12800H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906a3
806d1
Core
Alder Lake-H
Tiger Lake-H
Architecture
Base frecuency
2.4 GHz
3.3 GHz
Boost frecuency
4.8 GHz
4.9 GHz
Socket
BGA 1744
BGA 1787
Cores/Threads
14/20
8/16
TDP
45 W
65 W
Cache L1 (d+i)
6x32/8x64+6x48/8x32 kB
8x32+8x48 kB
Cache L2
6x1280/2x2048 kB
8x1280 kB
Cache L3
24576 kB
24576 kB
Date
February 2022
July 2021
Mean monothread perf.
67.13k points
63.79k points
Mean multithread perf.
467.41k 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
i7-12800H
i9-11900KB
Test#1 (Integers)
28.42k
24.09k (x0.85)
Test#2 (FP)
18.93k
19.54k (x1.03)
Test#3 (Generic, ZIP)
9.92k
8.48k (x0.85)
Test#1 (Memory)
9.86k
11.68k (x1.18)
TOTAL
67.13k
63.79k (x0.95)

Multithread

i7-12800H

i9-11900KB
Test#1 (Integers)
205.57k
220.79k (x1.07)
Test#2 (FP)
159.7k
225.98k (x1.42)
Test#3 (Generic, ZIP)
82.78k
79.1k (x0.96)
Test#1 (Memory)
19.36k
11.32k (x0.58)
TOTAL
467.41k
537.18k (x1.15)

Performance/W
i7-12800H
i9-11900KB
Test#1 (Integers)
4568 points/W
3397 points/W
Test#2 (FP)
3549 points/W
3477 points/W
Test#3 (Generic, ZIP)
1840 points/W
1217 points/W
Test#1 (Memory)
430 points/W
174 points/W
TOTAL
10387 points/W
8264 points/W

Performance/GHz
i7-12800H
i9-11900KB
Test#1 (Integers)
5921 points/GHz
4917 points/GHz
Test#2 (FP)
3944 points/GHz
3988 points/GHz
Test#3 (Generic, ZIP)
2066 points/GHz
1730 points/GHz
Test#1 (Memory)
2055 points/GHz
2384 points/GHz
TOTAL
13986 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