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Core i9-12900K vs i9-9900K


Description
The i9-12900K is based on Alder Lake architecture while the i9-9900K is based on Coffee Lake.

Using the multithread performance as a reference, the i9-12900K gets a score of 1131.6 k points while the i9-9900K gets 545.3 k points.

Summarizing, the i9-12900K is 2.1 times faster than the i9-9900K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
906ec
Core
Alder Lake
Coffee Lake-S
Architecture
Base frecuency
2.4 GHz
3.6 GHz
Boost frecuency
5.2 GHz
5 GHz
Socket
LGA 1700
LGA 1151
Cores/Threads
16/24
8/16
TDP
241 W
95 W
Cache L1 (d+i)
8x32/8x64+8x48/8x32 kB
8x32+8x32 kB
Cache L2
8x1280+8x2048 kB
8x256 kB
Cache L3
30720 kB
16384 kB
Date
November 2021
October 2018
Mean monothread perf.
109.05k points
86.24k points
Mean multithread perf.
1131.59k points
545.3k 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
i9-9900K
Test#1 (Integers)
47.92k
33.62k (x0.7)
Test#2 (FP)
30.1k
30.02k (x1)
Test#3 (Generic, ZIP)
15.65k
7.17k (x0.46)
Test#1 (Memory)
15.38k
15.43k (x1)
TOTAL
109.05k
86.24k (x0.79)

Multithread

i9-12900K

i9-9900K
Test#1 (Integers)
502.11k
248.93k (x0.5)
Test#2 (FP)
414.67k
224.43k (x0.54)
Test#3 (Generic, ZIP)
192.52k
53.39k (x0.28)
Test#1 (Memory)
22.3k
18.54k (x0.83)
TOTAL
1131.59k
545.3k (x0.48)

Performance/W
i9-12900K
i9-9900K
Test#1 (Integers)
2083 points/W
2620 points/W
Test#2 (FP)
1721 points/W
2362 points/W
Test#3 (Generic, ZIP)
799 points/W
562 points/W
Test#1 (Memory)
93 points/W
195 points/W
TOTAL
4695 points/W
5740 points/W

Performance/GHz
i9-12900K
i9-9900K
Test#1 (Integers)
9216 points/GHz
6724 points/GHz
Test#2 (FP)
5789 points/GHz
6003 points/GHz
Test#3 (Generic, ZIP)
3009 points/GHz
1434 points/GHz
Test#1 (Memory)
2957 points/GHz
3087 points/GHz
TOTAL
20971 points/GHz
17247 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