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Core i7-12800H vs i9-12900HK


Description
Both models i7-12800H and i9-12900HK are based on Alder Lake architecture.

Alder Lake is the 12th generation of Intel Core. It uses the 10nm proccess and was the first to introduce a hybrid architecture with Performance cores and Efficiency cores.

Using the multithread performance as a reference, the i7-12800H gets a score of 467.4 k points while the i9-12900HK gets 622.8 k points.

Summarizing, the i9-12900HK is 1.3 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
906a3
Core
Alder Lake-H
Alder Lake-H
Architecture
Base frecuency
2.4 GHz
2.5 GHz
Boost frecuency
4.8 GHz
5 GHz
Socket
BGA 1744
BGA 1744
Cores/Threads
14/20
14/20
TDP
45 W
45 W
Cache L1 (d+i)
6x32/8x64+6x48/8x32 kB
6x32/8x64+6x48/8x32 kB
Cache L2
6x1280/2x2048 kB
6x1280/2x2048 kB
Cache L3
24576 kB
24576 kB
Date
February 2022
January 2022
Mean monothread perf.
67.13k points
68.43k points
Mean multithread perf.
467.41k points
622.83k 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
i9-12900HK
Test#1 (Integers)
28.42k
30.51k (x1.07)
Test#2 (FP)
18.93k
18.67k (x0.99)
Test#3 (Generic, ZIP)
9.92k
9.69k (x0.98)
Test#1 (Memory)
9.86k
9.55k (x0.97)
TOTAL
67.13k
68.43k (x1.02)

Multithread

i7-12800H

i9-12900HK
Test#1 (Integers)
205.57k
273.58k (x1.33)
Test#2 (FP)
159.7k
228.21k (x1.43)
Test#3 (Generic, ZIP)
82.78k
111.89k (x1.35)
Test#1 (Memory)
19.36k
9.15k (x0.47)
TOTAL
467.41k
622.83k (x1.33)

Performance/W
i7-12800H
i9-12900HK
Test#1 (Integers)
4568 points/W
6080 points/W
Test#2 (FP)
3549 points/W
5071 points/W
Test#3 (Generic, ZIP)
1840 points/W
2486 points/W
Test#1 (Memory)
430 points/W
203 points/W
TOTAL
10387 points/W
13841 points/W

Performance/GHz
i7-12800H
i9-12900HK
Test#1 (Integers)
5921 points/GHz
6103 points/GHz
Test#2 (FP)
3944 points/GHz
3734 points/GHz
Test#3 (Generic, ZIP)
2066 points/GHz
1938 points/GHz
Test#1 (Memory)
2055 points/GHz
1911 points/GHz
TOTAL
13986 points/GHz
13686 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