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Core i7-6900K vs i5-12400F


Description
The i7-6900K is based on Broadwell architecture while the i5-12400F is based on Alder Lake.

Using the multithread performance as a reference, the i7-6900K gets a score of 427.5 k points while the i5-12400F gets 488 k points.

Summarizing, the i5-12400F is 1.1 times faster than the i7-6900K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406f1
90672
Core
Broadwell-E
Alder Lake-S
Architecture
Base frecuency
3.2 GHz
2.5 GHz
Boost frecuency
3.7 GHz
4.4 GHz
Socket
LGA 2011-3
LGA 1700
Cores/Threads
8/16
6/12
TDP
140 W
65 W
Cache L1 (d+i)
8x32+8x32 kB
6x32+6x48 kB
Cache L2
8x256 kB
6x1280 kB
Cache L3
20480 kB
18432 kB
Date
September 2016
January 2022
Mean monothread perf.
49.76k points
87.88k points
Mean multithread perf.
427.51k points
488.01k 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
i7-6900K
i5-12400F
Test#1 (Integers)
23.11k
38.79k (x1.68)
Test#2 (FP)
17.84k
23.73k (x1.33)
Test#3 (Generic, ZIP)
5.34k
11.95k (x2.24)
Test#1 (Memory)
3.47k
13.41k (x3.87)
TOTAL
49.76k
87.88k (x1.77)

Multithread

i7-6900K

i5-12400F
Test#1 (Integers)
184.19k
203.66k (x1.11)
Test#2 (FP)
181.2k
182.98k (x1.01)
Test#3 (Generic, ZIP)
47.44k
83.88k (x1.77)
Test#1 (Memory)
14.69k
17.49k (x1.19)
TOTAL
427.51k
488.01k (x1.14)

Performance/W
i7-6900K
i5-12400F
Test#1 (Integers)
1316 points/W
3133 points/W
Test#2 (FP)
1294 points/W
2815 points/W
Test#3 (Generic, ZIP)
339 points/W
1290 points/W
Test#1 (Memory)
105 points/W
269 points/W
TOTAL
3054 points/W
7508 points/W

Performance/GHz
i7-6900K
i5-12400F
Test#1 (Integers)
6247 points/GHz
8815 points/GHz
Test#2 (FP)
4822 points/GHz
5394 points/GHz
Test#3 (Generic, ZIP)
1444 points/GHz
2715 points/GHz
Test#1 (Memory)
938 points/GHz
3048 points/GHz
TOTAL
13450 points/GHz
19972 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