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Core i9-12900K vs i7-12700K


Description
Both models i9-12900K and i7-12700K 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 i9-12900K gets a score of 1131.6 k points while the i7-12700K gets 1034.1 k points.

Summarizing, the i9-12900K is 1.1 times faster than the i7-12700K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
90672
Core
Alder Lake
Alder Lake
Architecture
Base frecuency
2.4 GHz
2.7 GHz
Boost frecuency
5.2 GHz
5 GHz
Socket
LGA 1700
LGA 1700
Cores/Threads
16/24
12/20
TDP
241 W
190 W
Cache L1 (d+i)
8x32/8x64+8x48/8x32 kB
8x32/4x64+8x48/4x32 kB
Cache L2
8x1280+8x2048 kB
8x1280+4x2048 kB
Cache L3
30720 kB
25600 kB
Date
November 2021
November 2021
Mean monothread perf.
109.05k points
110.2k points
Mean multithread perf.
1131.59k points
1034.06k 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
i9-12900K
i7-12700K
Test#1 (Integers)
47.92k
52.13k (x1.09)
Test#2 (FP)
30.1k
28.97k (x0.96)
Test#3 (Generic, ZIP)
15.65k
15.04k (x0.96)
Test#1 (Memory)
15.38k
14.07k (x0.91)
TOTAL
109.05k
110.2k (x1.01)

Multithread

i9-12900K

i7-12700K
Test#1 (Integers)
502.11k
458.8k (x0.91)
Test#2 (FP)
414.67k
377.45k (x0.91)
Test#3 (Generic, ZIP)
192.52k
171.31k (x0.89)
Test#1 (Memory)
22.3k
26.51k (x1.19)
TOTAL
1131.59k
1034.06k (x0.91)

Performance/W
i9-12900K
i7-12700K
Test#1 (Integers)
2083 points/W
2415 points/W
Test#2 (FP)
1721 points/W
1987 points/W
Test#3 (Generic, ZIP)
799 points/W
902 points/W
Test#1 (Memory)
93 points/W
140 points/W
TOTAL
4695 points/W
5442 points/W

Performance/GHz
i9-12900K
i7-12700K
Test#1 (Integers)
9216 points/GHz
10425 points/GHz
Test#2 (FP)
5789 points/GHz
5794 points/GHz
Test#3 (Generic, ZIP)
3009 points/GHz
3008 points/GHz
Test#1 (Memory)
2957 points/GHz
2813 points/GHz
TOTAL
20971 points/GHz
22040 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