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Core i7-8700k vs i5-9600KF


Specs
CPUID
906ea
906ec
Core
Coffee Lake-S
Coffee Lake-S
Architecture
Base frecuency
3.7 GHz
3.7 GHz
Boost frecuency
4.7 GHz
4.6 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/12
6/6
TDP
95 W
95 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
12288 kB
9216 kB
Date
October 2017
January 2019

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
i7-8700k
i5-9600KF
Test#1 (Integers)
4127
4629 (12.16%)
Test#2 (FP)
16959
19426 (14.55%)
Test#3 (Generic, ZIP)
5564
6169 (10.88%)
Test#1 (Memory)
12845
13817 (7.57%)
TOTAL
39495
44041 (11.51%)

Multithread

i7-8700k

i5-9600KF
Test#1 (Integers)
24011
26635 (10.93%)
Test#2 (FP)
108690
110107 (1.30%)
Test#3 (Generic, ZIP)
36616
33068 (-9.69%)
Test#1 (Memory)
9327
8296 (-11.05%)
TOTAL
178644
178106 (-0.30%)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-8700k
i5-9600KF
Test#1 (Integers)
16874
16923 (0.29%)
Test#2 (FP)
26119
25439 (-2.60%)
Test#3 (Generic, ZIP)
6329
6360 (0.48%)
Test#1 (Memory)
13708
13250 (-3.34%)
TOTAL
63030
61972 (-1.68%)

Multithread

i7-8700k

i5-9600KF
Test#1 (Integers)
105740
95513 (-9.67%)
Test#2 (FP)
180520
143192 (-20.68%)
Test#3 (Generic, ZIP)
44994
33851 (-24.76%)
Test#1 (Memory)
8512
8210 (-3.54%)
TOTAL
339766
280767 (-17.36%)

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
i5-9600KF
Test#1 (Integers)
31311
30521 (-2.52%)
Test#2 (FP)
27982
26538 (-5.16%)
Test#3 (Generic, ZIP)
6645
6411 (-3.52%)
Test#1 (Memory)
15193
13870 (-8.71%)
TOTAL
81130
77340 (-4.67%)

Multithread

i7-8700k

i5-9600KF
Test#1 (Integers)
202490
174659 (-13.74%)
Test#2 (FP)
186057
154064 (-17.20%)
Test#3 (Generic, ZIP)
44919
34111 (-24.06%)
Test#1 (Memory)
10335
8243 (-20.24%)
TOTAL
443800
371076 (-16.39%)

Performance/W
i7-8700k
i5-9600KF
Test#1 (Integers)
2131 points/W
1839 points/W
Test#2 (FP)
1958 points/W
1622 points/W
Test#3 (Generic, ZIP)
473 points/W
359 points/W
Test#1 (Memory)
109 points/W
87 points/W
TOTAL
4672 points/W
3906 points/W

Performance/GHz
i7-8700k
i5-9600KF
Test#1 (Integers)
6662 points/GHz
6635 points/GHz
Test#2 (FP)
5954 points/GHz
5769 points/GHz
Test#3 (Generic, ZIP)
1414 points/GHz
1394 points/GHz
Test#1 (Memory)
3232 points/GHz
3015 points/GHz
TOTAL
17262 points/GHz
16813 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. 3.7.3