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Core i7-7700K vs i5-6600K


Description
The i7-7700K is based on Kaby Lake architecture while the i5-6600K is based on Skylake.

Using the multithread performance as a reference, the i7-7700K gets a score of 238 k points while the i5-6600K gets 209.3 k points.

Summarizing, the i7-7700K is 1.1 times faster than the i5-6600K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
506e3
Core
Kaby Lake-S
Skylake-S
Architecture
Base frecuency
4.2 GHz
3.5 GHz
Boost frecuency
4.5 GHz
3.9 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/8
4/4
TDP
95 W
95 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
8192 kB
6144 kB
Date
September 2016
May 2015

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
i5-6600K
Test#1 (Integers)
17549
17238 (-1.77%)
Test#2 (FP)
27822
26500 (-4.75%)
Test#3 (Generic, ZIP)
6796
6446 (-5.15%)
Test#1 (Memory)
14832
9092 (-38.70%)
TOTAL
66999
59276 (-11.53%)

Multithread

i7-7700K

i5-6600K
Test#1 (Integers)
68395
68474 (0.11%)
Test#2 (FP)
118805
105055 (-11.57%)
Test#3 (Generic, ZIP)
33336
25244 (-24.27%)
Test#1 (Memory)
17434
10503 (-39.76%)
TOTAL
237970
209276 (-12.06%)

Performance/W
i7-7700K
i5-6600K
Test#1 (Integers)
720 points/W
721 points/W
Test#2 (FP)
1251 points/W
1106 points/W
Test#3 (Generic, ZIP)
351 points/W
266 points/W
Test#1 (Memory)
184 points/W
111 points/W
TOTAL
2505 points/W
2203 points/W

Performance/GHz
i7-7700K
i5-6600K
Test#1 (Integers)
3900 points/GHz
4420 points/GHz
Test#2 (FP)
6183 points/GHz
6795 points/GHz
Test#3 (Generic, ZIP)
1510 points/GHz
1653 points/GHz
Test#1 (Memory)
3296 points/GHz
2331 points/GHz
TOTAL
14889 points/GHz
15199 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