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Core i7-11800H vs i9-12900KF


Description
The i7-11800H is based on Tiger Lake architecture while the i9-12900KF is based on Alder Lake.

Using the multithread performance as a reference, the i7-11800H gets a score of 607.4 k points while the i9-12900KF gets 1219.3 k points.

Summarizing, the i9-12900KF is 2 times faster than the i7-11800H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806d1
90672
Core
Tiger Lake-H
Alder Lake-S
Architecture
Base frecuency
2.3 GHz
3.2 GHz
Boost frecuency
4.6 GHz
5.2 GHz
Socket
BGA 1787
LGA 1700
Cores/Threads
8/16
16/24
TDP
45 W
125 W
Cache L1 (d+i)
8x32+8x48 kB
8x32/8x64+8x48/8x32 kB
Cache L2
8x1280 kB
8x1280+8x2048 kB
Cache L3
24576 kB
30720 kB
Date
May 2021
November 2021
Mean monothread perf.
88.34k points
120.97k points
Mean multithread perf.
607.38k points
1219.33k 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
i9-12900KF
Test#1 (Integers)
33.02k
57.05k (x1.73)
Test#2 (FP)
26.55k
29.66k (x1.12)
Test#3 (Generic, ZIP)
11.72k
16.48k (x1.41)
Test#1 (Memory)
17.06k
17.78k (x1.04)
TOTAL
88.34k
120.97k (x1.37)

Multithread

i7-11800H

i9-12900KF
Test#1 (Integers)
260.97k
546.04k (x2.09)
Test#2 (FP)
248.94k
437.01k (x1.76)
Test#3 (Generic, ZIP)
86.55k
211.36k (x2.44)
Test#1 (Memory)
10.91k
24.92k (x2.28)
TOTAL
607.38k
1219.33k (x2.01)

Performance/W
i7-11800H
i9-12900KF
Test#1 (Integers)
5799 points/W
4368 points/W
Test#2 (FP)
5532 points/W
3496 points/W
Test#3 (Generic, ZIP)
1923 points/W
1691 points/W
Test#1 (Memory)
242 points/W
199 points/W
TOTAL
13497 points/W
9755 points/W

Performance/GHz
i7-11800H
i9-12900KF
Test#1 (Integers)
7177 points/GHz
10972 points/GHz
Test#2 (FP)
5771 points/GHz
5704 points/GHz
Test#3 (Generic, ZIP)
2547 points/GHz
3170 points/GHz
Test#1 (Memory)
3709 points/GHz
3419 points/GHz
TOTAL
19204 points/GHz
23264 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