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Core i7-7700K vs i5-9600KF


Description
The i7-7700K is based on Kaby Lake architecture while the i5-9600KF is based on Coffee Lake.

Using the multithread performance as a reference, the i7-7700K gets a score of 292.3 k points while the i5-9600KF gets 371.1 k points.

Summarizing, the i5-9600KF is 1.3 times faster than the i7-7700K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906ec
Core
Kaby Lake-S
Coffee Lake-S
Architecture
Base frecuency
4.2 GHz
3.7 GHz
Boost frecuency
4.5 GHz
4.6 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/8
6/6
TDP
95 W
95 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
8192 kB
9216 kB
Date
September 2016
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
i7-7700K
i5-9600KF
Test#1 (Integers)
4629
4629 (-0.01%)
Test#2 (FP)
18925
19426 (2.65%)
Test#3 (Generic, ZIP)
6221
6169 (-0.84%)
Test#1 (Memory)
13922
13817 (-0.75%)
TOTAL
43698
44041 (0.79%)

Multithread

i7-7700K

i5-9600KF
Test#1 (Integers)
18529
26635 (43.75%)
Test#2 (FP)
86487
110107 (27.31%)
Test#3 (Generic, ZIP)
28778
33068 (14.91%)
Test#1 (Memory)
9674
8296 (-14.24%)
TOTAL
143468
178106 (24.14%)

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
i7-7700K
i5-9600KF
Test#1 (Integers)
17549
16923 (-3.56%)
Test#2 (FP)
27822
25439 (-8.57%)
Test#3 (Generic, ZIP)
6796
6360 (-6.42%)
Test#1 (Memory)
14832
13250 (-10.66%)
TOTAL
66999
61972 (-7.50%)

Multithread

i7-7700K

i5-9600KF
Test#1 (Integers)
68395
95513 (39.65%)
Test#2 (FP)
118805
143192 (20.53%)
Test#3 (Generic, ZIP)
33336
33851 (1.55%)
Test#1 (Memory)
17434
8210 (-52.91%)
TOTAL
237970
280767 (17.98%)

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
i7-7700K
i5-9600KF
Test#1 (Integers)
30879
30521 (-1.16%)
Test#2 (FP)
27266
26538 (-2.67%)
Test#3 (Generic, ZIP)
6416
6411 (-0.07%)
Test#1 (Memory)
14011
13870 (-1.01%)
TOTAL
78572
77340 (-1.57%)

Multithread

i7-7700K

i5-9600KF
Test#1 (Integers)
130361
174659 (33.98%)
Test#2 (FP)
122434
154064 (25.83%)
Test#3 (Generic, ZIP)
29679
34111 (14.93%)
Test#1 (Memory)
9830
8243 (-16.15%)
TOTAL
292304
371076 (26.95%)

Performance/W
i7-7700K
i5-9600KF
Test#1 (Integers)
1372 points/W
1839 points/W
Test#2 (FP)
1289 points/W
1622 points/W
Test#3 (Generic, ZIP)
312 points/W
359 points/W
Test#1 (Memory)
103 points/W
87 points/W
TOTAL
3077 points/W
3906 points/W

Performance/GHz
i7-7700K
i5-9600KF
Test#1 (Integers)
6862 points/GHz
6635 points/GHz
Test#2 (FP)
6059 points/GHz
5769 points/GHz
Test#3 (Generic, ZIP)
1426 points/GHz
1394 points/GHz
Test#1 (Memory)
3114 points/GHz
3015 points/GHz
TOTAL
17460 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. 3.7.9