Core i9-12900HK vs i7-1255U
Description
Both models i9-12900HK and i7-1255U 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 i9-12900HK gets a score of 622.8 k points while the i7-1255U gets 258.3 k points.
Summarizing, the i9-12900HK is 2.4 times faster than the i7-1255U. To get a proper comparison between both models, take a look to the data shown below.
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 i9-12900HK gets a score of 622.8 k points while the i7-1255U gets 258.3 k points.
Summarizing, the i9-12900HK is 2.4 times faster than the i7-1255U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906a3
906a4
Core
Alder Lake-H
Alder Lake-U
Base frecuency
2.5 GHz
1.7 GHz
Boost frecuency
5 GHz
4.7 GHz
Socket
BGA 1744
BGA 1744
Cores/Threads
14/20
10/12
TDP
45 W
15 W
Cache L1 (d+i)
6x32/8x64+6x48/8x32 kB
2x32/8x64+2x48/8x32 kB
Cache L2
6x1280/2x2048 kB
2x1280+2x2048 kB
Cache L3
24576 kB
12288 kB
Date
January 2022
February 2022
Mean monothread perf.
68.43k points
81.73k points
Mean multithread perf.
622.83k points
258.31k 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
i9-12900HK
i7-1255U
Test#1 (Integers)
30.51k
38.32k (x1.26)
Test#2 (FP)
18.67k
21.35k (x1.14)
Test#3 (Generic, ZIP)
9.69k
11.2k (x1.16)
Test#1 (Memory)
9.55k
10.86k (x1.14)
TOTAL
68.43k
81.73k (x1.19)
Multithread
i9-12900HK
i7-1255U
Test#1 (Integers)
273.58k
105.48k (x0.39)
Test#2 (FP)
228.21k
100.18k (x0.44)
Test#3 (Generic, ZIP)
111.89k
43.39k (x0.39)
Test#1 (Memory)
9.15k
9.26k (x1.01)
TOTAL
622.83k
258.31k (x0.41)
Performance/W
i9-12900HK
i7-1255U
Test#1 (Integers)
6080 points/W
7032 points/W
Test#2 (FP)
5071 points/W
6678 points/W
Test#3 (Generic, ZIP)
2486 points/W
2893 points/W
Test#1 (Memory)
203 points/W
617 points/W
TOTAL
13841 points/W
17221 points/W
Performance/GHz
i9-12900HK
i7-1255U
Test#1 (Integers)
6103 points/GHz
8154 points/GHz
Test#2 (FP)
3734 points/GHz
4543 points/GHz
Test#3 (Generic, ZIP)
1938 points/GHz
2382 points/GHz
Test#1 (Memory)
1911 points/GHz
2311 points/GHz
TOTAL
13686 points/GHz
17390 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4