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Core i7-12700K vs i5-12400


Description
Both models i7-12700K and i5-12400 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 i7-12700K gets a score of 1034.1 k points while the i5-12400 gets 544.6 k points.

Summarizing, the i7-12700K is 1.9 times faster than the i5-12400. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
90672
90672
Core
Alder Lake
Arder Lake-S
Architecture
Base frecuency
2.7 GHz
2.5 GHz
Boost frecuency
5 GHz
4.4 GHz
Socket
LGA 1700
LGA 1700
Cores/Threads
12/20
6/12
TDP
190 W
65 W
Cache L1 (d+i)
8x32/4x64+8x48/4x32 kB
6x32+6x48 kB
Cache L2
8x1280+4x2048 kB
6x1280 kB
Cache L3
25600 kB
18432 kB
Date
November 2021
January 2022
Mean monothread perf.
110.2k points
102.51k points
Mean multithread perf.
1034.06k points
544.64k 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
i5-12400
Test#1 (Integers)
8.44k
7.51k (x0.89)
Test#2 (FP)
21.1k
18.66k (x0.88)
Test#3 (Generic, ZIP)
14.52k
13.32k (x0.92)
Test#1 (Memory)
12.87k
14.8k (x1.15)
TOTAL
56.92k
54.29k (x0.95)

Multithread

i7-12700K

i5-12400
Test#1 (Integers)
70.7k
35.52k (x0.5)
Test#2 (FP)
251.29k
138.43k (x0.55)
Test#3 (Generic, ZIP)
159.92k
85.55k (x0.53)
Test#1 (Memory)
32.47k
21.72k (x0.67)
TOTAL
514.38k
281.22k (x0.55)

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
i5-12400
Test#1 (Integers)
52.13k
48.08k (x0.92)
Test#2 (FP)
28.97k
25.6k (x0.88)
Test#3 (Generic, ZIP)
15.04k
14.02k (x0.93)
Test#1 (Memory)
14.07k
14.81k (x1.05)
TOTAL
110.2k
102.51k (x0.93)

Multithread

i7-12700K

i5-12400
Test#1 (Integers)
458.8k
230.14k (x0.5)
Test#2 (FP)
377.45k
198.07k (x0.52)
Test#3 (Generic, ZIP)
171.31k
94.78k (x0.55)
Test#1 (Memory)
26.51k
21.64k (x0.82)
TOTAL
1034.06k
544.64k (x0.53)

Performance/W
i7-12700K
i5-12400
Test#1 (Integers)
2415 points/W
3541 points/W
Test#2 (FP)
1987 points/W
3047 points/W
Test#3 (Generic, ZIP)
902 points/W
1458 points/W
Test#1 (Memory)
140 points/W
333 points/W
TOTAL
5442 points/W
8379 points/W

Performance/GHz
i7-12700K
i5-12400
Test#1 (Integers)
10425 points/GHz
10927 points/GHz
Test#2 (FP)
5794 points/GHz
5819 points/GHz
Test#3 (Generic, ZIP)
3008 points/GHz
3186 points/GHz
Test#1 (Memory)
2813 points/GHz
3365 points/GHz
TOTAL
22040 points/GHz
23298 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