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Core i7-8700k vs i5-10400F


Description
The i7-8700k is based on Coffee Lake architecture while the i5-10400F is based on Comet Lake.

Using the multithread performance as a reference, the i7-8700k gets a score of 443.8 k points while the i5-10400F gets 373.5 k points.

Summarizing, the i7-8700k is 1.2 times faster than the i5-10400F. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
a0653
Core
Coffee Lake-S
Comet Lake-S
Architecture
Base frecuency
3.7 GHz
2.9 GHz
Boost frecuency
4.7 GHz
4.3 GHz
Socket
LGA 1151
LGA 1200
Cores/Threads
6/12
6/12
TDP
95 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
12288 kB
12288 kB
Date
October 2017
April 2020

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
i7-8700k
i5-10400F
Test#1 (Integers)
31204
26253 (-15.87%)
Test#2 (FP)
27821
23240 (-16.47%)
Test#3 (Generic, ZIP)
6568
5584 (-14.97%)
Test#1 (Memory)
15004
12864 (-14.26%)
TOTAL
80598
67942 (-15.70%)

Multithread

i7-8700k

i5-10400F
Test#1 (Integers)
202422
164389 (-18.79%)
Test#2 (FP)
186332
161962 (-13.08%)
Test#3 (Generic, ZIP)
44958
39723 (-11.64%)
Test#1 (Memory)
10054
7458 (-25.81%)
TOTAL
443765
373533 (-15.83%)

Performance/W
i7-8700k
i5-10400F
Test#1 (Integers)
2131 points/W
2529 points/W
Test#2 (FP)
1961 points/W
2492 points/W
Test#3 (Generic, ZIP)
473 points/W
611 points/W
Test#1 (Memory)
106 points/W
115 points/W
TOTAL
4671 points/W
5747 points/W

Performance/GHz
i7-8700k
i5-10400F
Test#1 (Integers)
6639 points/GHz
6105 points/GHz
Test#2 (FP)
5919 points/GHz
5405 points/GHz
Test#3 (Generic, ZIP)
1397 points/GHz
1299 points/GHz
Test#1 (Memory)
3192 points/GHz
2992 points/GHz
TOTAL
17148 points/GHz
15800 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. 3.7.9