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Core i7-12700K vs i9-9900K


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

Using the multithread performance as a reference, the i7-12700K gets a score of 1034.1 k points while the i9-9900K gets 545.3 k points.

Summarizing, the i7-12700K is 1.9 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
2.7 GHz
3.6 GHz
Boost frecuency
5 GHz
5 GHz
Socket
LGA 1700
LGA 1151
Cores/Threads
12/20
8/16
TDP
190 W
95 W
Cache L1 (d+i)
8x32/4x64+8x48/4x32 kB
8x32+8x32 kB
Cache L2
8x1280+4x2048 kB
8x256 kB
Cache L3
25600 kB
16384 kB
Date
November 2021
October 2018
Mean monothread perf.
110.2k points
86.24k points
Mean multithread perf.
1034.06k points
545.3k 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
i7-12700K
i9-9900K
Test#1 (Integers)
8.44k
5.17k (x0.61)
Test#2 (FP)
21.1k
21.15k (x1)
Test#3 (Generic, ZIP)
14.52k
7.01k (x0.48)
Test#1 (Memory)
12.87k
15.32k (x1.19)
TOTAL
56.92k
48.66k (x0.85)

Multithread

i7-12700K

i9-9900K
Test#1 (Integers)
70.7k
38.45k (x0.54)
Test#2 (FP)
251.29k
155.68k (x0.62)
Test#3 (Generic, ZIP)
159.92k
51k (x0.32)
Test#1 (Memory)
32.47k
18.26k (x0.56)
TOTAL
514.38k
263.38k (x0.51)

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
i7-12700K
i9-9900K
Test#1 (Integers)
52.13k
33.62k (x0.64)
Test#2 (FP)
28.97k
30.02k (x1.04)
Test#3 (Generic, ZIP)
15.04k
7.17k (x0.48)
Test#1 (Memory)
14.07k
15.43k (x1.1)
TOTAL
110.2k
86.24k (x0.78)

Multithread

i7-12700K

i9-9900K
Test#1 (Integers)
458.8k
248.93k (x0.54)
Test#2 (FP)
377.45k
224.43k (x0.59)
Test#3 (Generic, ZIP)
171.31k
53.39k (x0.31)
Test#1 (Memory)
26.51k
18.54k (x0.7)
TOTAL
1034.06k
545.3k (x0.53)

Performance/W
i7-12700K
i9-9900K
Test#1 (Integers)
2415 points/W
2620 points/W
Test#2 (FP)
1987 points/W
2362 points/W
Test#3 (Generic, ZIP)
902 points/W
562 points/W
Test#1 (Memory)
140 points/W
195 points/W
TOTAL
5442 points/W
5740 points/W

Performance/GHz
i7-12700K
i9-9900K
Test#1 (Integers)
10425 points/GHz
6724 points/GHz
Test#2 (FP)
5794 points/GHz
6003 points/GHz
Test#3 (Generic, ZIP)
3008 points/GHz
1434 points/GHz
Test#1 (Memory)
2813 points/GHz
3087 points/GHz
TOTAL
22040 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