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Core i5-6600K vs i7-4790K


Description
The i5-6600K is based on Skylake architecture while the i7-4790K is based on Haswell.

Using the multithread performance as a reference, the i5-6600K gets a score of 209.3 k points while the i7-4790K gets 164.4 k points.

Summarizing, the i5-6600K is 1.3 times faster than the i7-4790K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306c3
Core
Skylake-S
Haswell
Architecture
Base frecuency
3.5 GHz
4 GHz
Boost frecuency
3.9 GHz
4.4 GHz
Socket
LGA 1151
LGA 1150
Cores/Threads
4/4
4/8
TDP
95 W
88 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
256 kB
256 kB
Cache L3
6144 kB
8192 kB
Date
May 2015
May 2014
Mean monothread perf.
59.28k points
52.47k points
Mean multithread perf.
209.28k points
215.47k points

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
i5-6600K
i7-4790K
Test#1 (Integers)
17.24k
15.8k (x0.92)
Test#2 (FP)
26.5k
14.35k (x0.54)
Test#3 (Generic, ZIP)
6.45k
5.97k (x0.93)
Test#1 (Memory)
9.09k
5.17k (x0.57)
TOTAL
59.28k
41.29k (x0.7)

Multithread

i5-6600K

i7-4790K
Test#1 (Integers)
68.47k
62.79k (x0.92)
Test#2 (FP)
105.05k
66.48k (x0.63)
Test#3 (Generic, ZIP)
25.24k
26.35k (x1.04)
Test#1 (Memory)
10.5k
8.74k (x0.83)
TOTAL
209.28k
164.36k (x0.79)

Performance/W
i5-6600K
i7-4790K
Test#1 (Integers)
721 points/W
713 points/W
Test#2 (FP)
1106 points/W
755 points/W
Test#3 (Generic, ZIP)
266 points/W
299 points/W
Test#1 (Memory)
111 points/W
99 points/W
TOTAL
2203 points/W
1868 points/W

Performance/GHz
i5-6600K
i7-4790K
Test#1 (Integers)
4420 points/GHz
3591 points/GHz
Test#2 (FP)
6795 points/GHz
3260 points/GHz
Test#3 (Generic, ZIP)
1653 points/GHz
1358 points/GHz
Test#1 (Memory)
2331 points/GHz
1174 points/GHz
TOTAL
15199 points/GHz
9383 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. 3.11.4