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Core i9-9900K vs i7-12700H


Description
The i9-9900K is based on Coffee Lake architecture while the i7-12700H is based on Alder Lake.

Using the multithread performance as a reference, the i9-9900K gets a score of 545.3 k points while the i7-12700H gets 643.3 k points.

Summarizing, the i7-12700H is 1.2 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ec
906a3
Core
Coffee Lake-S
Alder Lake-H
Architecture
Base frecuency
3.6 GHz
4.7 GHz
Boost frecuency
5 GHz
4.7 GHz
Socket
LGA 1151
BGA 1744
Cores/Threads
8/16
14/20
TDP
95 W
115 W
Cache L1 (d+i)
8x32+8x32 kB
6x32/8x64+6x48/8x32 kB
Cache L2
8x256 kB
6x1280+6x2048 kB
Cache L3
16384 kB
24576 kB
Date
October 2018
January 2022
Mean monothread perf.
86.24k points
93.12k points
Mean multithread perf.
545.3k points
643.29k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i9-9900K
i7-12700H
Test#1 (Integers)
5.17k
7.95k (x1.54)
Test#2 (FP)
21.15k
19.74k (x0.93)
Test#3 (Generic, ZIP)
7.01k
13.29k (x1.9)
Test#1 (Memory)
15.32k
14.97k (x0.98)
TOTAL
48.66k
55.95k (x1.15)

Multithread

i9-9900K

i7-12700H
Test#1 (Integers)
38.45k
53.64k (x1.39)
Test#2 (FP)
155.68k
171.15k (x1.1)
Test#3 (Generic, ZIP)
51k
94.92k (x1.86)
Test#1 (Memory)
18.26k
9.24k (x0.51)
TOTAL
263.38k
328.95k (x1.25)

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
i9-9900K
i7-12700H
Test#1 (Integers)
33.62k
41.64k (x1.24)
Test#2 (FP)
30.02k
25.48k (x0.85)
Test#3 (Generic, ZIP)
7.17k
13.2k (x1.84)
Test#1 (Memory)
15.43k
12.8k (x0.83)
TOTAL
86.24k
93.12k (x1.08)

Multithread

i9-9900K

i7-12700H
Test#1 (Integers)
248.93k
276.56k (x1.11)
Test#2 (FP)
224.43k
251.6k (x1.12)
Test#3 (Generic, ZIP)
53.39k
104.55k (x1.96)
Test#1 (Memory)
18.54k
10.58k (x0.57)
TOTAL
545.3k
643.29k (x1.18)

Performance/W
i9-9900K
i7-12700H
Test#1 (Integers)
2620 points/W
2405 points/W
Test#2 (FP)
2362 points/W
2188 points/W
Test#3 (Generic, ZIP)
562 points/W
909 points/W
Test#1 (Memory)
195 points/W
92 points/W
TOTAL
5740 points/W
5594 points/W

Performance/GHz
i9-9900K
i7-12700H
Test#1 (Integers)
6724 points/GHz
8859 points/GHz
Test#2 (FP)
6003 points/GHz
5422 points/GHz
Test#3 (Generic, ZIP)
1434 points/GHz
2808 points/GHz
Test#1 (Memory)
3087 points/GHz
2724 points/GHz
TOTAL
17247 points/GHz
19813 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