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Core i7-7700K vs i5-9600K


Description
The i7-7700K is based on Kaby Lake architecture while the i5-9600K 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 i5-9600K gets 372.7 k points.

Summarizing, the i5-9600K 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
906ed
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
October 2018

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
i5-9600K
Test#1 (Integers)
4629
4688 (1.26%)
Test#2 (FP)
18925
19351 (2.26%)
Test#3 (Generic, ZIP)
6221
6083 (-2.22%)
Test#1 (Memory)
13922
13807 (-0.83%)
TOTAL
43698
43929 (0.53%)

Multithread

i7-7700K

i5-9600K
Test#1 (Integers)
18529
26240 (41.62%)
Test#2 (FP)
86487
107946 (24.81%)
Test#3 (Generic, ZIP)
28778
34499 (19.88%)
Test#1 (Memory)
9674
8102 (-16.25%)
TOTAL
143468
176786 (23.22%)

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
i5-9600K
Test#1 (Integers)
17549
16747 (-4.57%)
Test#2 (FP)
27822
25497 (-8.36%)
Test#3 (Generic, ZIP)
6796
6171 (-9.19%)
Test#1 (Memory)
14832
13062 (-11.93%)
TOTAL
66999
61477 (-8.24%)

Multithread

i7-7700K

i5-9600K
Test#1 (Integers)
68395
96034 (40.41%)
Test#2 (FP)
118805
143784 (21.03%)
Test#3 (Generic, ZIP)
33336
35064 (5.18%)
Test#1 (Memory)
17434
8453 (-51.51%)
TOTAL
237970
283334 (19.06%)

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
i5-9600K
Test#1 (Integers)
30879
30642 (-0.77%)
Test#2 (FP)
27266
26751 (-1.89%)
Test#3 (Generic, ZIP)
6416
6331 (-1.33%)
Test#1 (Memory)
14011
14028 (0.12%)
TOTAL
78572
77751 (-1.04%)

Multithread

i7-7700K

i5-9600K
Test#1 (Integers)
130361
174924 (34.18%)
Test#2 (FP)
122434
153881 (25.69%)
Test#3 (Generic, ZIP)
29679
35932 (21.07%)
Test#1 (Memory)
9830
8000 (-18.62%)
TOTAL
292304
372737 (27.52%)

Performance/W
i7-7700K
i5-9600K
Test#1 (Integers)
1372 points/W
1841 points/W
Test#2 (FP)
1289 points/W
1620 points/W
Test#3 (Generic, ZIP)
312 points/W
378 points/W
Test#1 (Memory)
103 points/W
84 points/W
TOTAL
3077 points/W
3924 points/W

Performance/GHz
i7-7700K
i5-9600K
Test#1 (Integers)
6862 points/GHz
6661 points/GHz
Test#2 (FP)
6059 points/GHz
5815 points/GHz
Test#3 (Generic, ZIP)
1426 points/GHz
1376 points/GHz
Test#1 (Memory)
3114 points/GHz
3049 points/GHz
TOTAL
17460 points/GHz
16902 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