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Core i5-6600K vs i5-5675R


Description
The i5-6600K is based on Skylake architecture while the i5-5675R is based on Broadwell.

Using the multithread performance as a reference, the i5-6600K gets a score of 209.3 k points while the i5-5675R gets 156.8 k points.

Summarizing, the i5-6600K is 1.3 times faster than the i5-5675R. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
40671
Core
Skylake-S
Bradwell-H
Architecture
Base frecuency
3.5 GHz
3.1 GHz
Boost frecuency
3.9 GHz
3.6 GHz
Socket
LGA 1151
BGA1364
Cores/Threads
4/4
4/4
TDP
95 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
6144 kB
4096 kB
Date
May 2015
June 2015
Mean monothread perf.
59.28k points
51.43k points
Mean multithread perf.
209.28k points
194.2k 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
i5-5675R
Test#1 (Integers)
17.24k
12.88k (x0.75)
Test#2 (FP)
26.5k
18.27k (x0.69)
Test#3 (Generic, ZIP)
6.45k
5.12k (x0.79)
Test#1 (Memory)
9.09k
5.45k (x0.6)
TOTAL
59.28k
41.72k (x0.7)

Multithread

i5-6600K

i5-5675R
Test#1 (Integers)
68.47k
49.91k (x0.73)
Test#2 (FP)
105.05k
70.3k (x0.67)
Test#3 (Generic, ZIP)
25.24k
19.69k (x0.78)
Test#1 (Memory)
10.5k
16.92k (x1.61)
TOTAL
209.28k
156.83k (x0.75)

Performance/W
i5-6600K
i5-5675R
Test#1 (Integers)
721 points/W
768 points/W
Test#2 (FP)
1106 points/W
1082 points/W
Test#3 (Generic, ZIP)
266 points/W
303 points/W
Test#1 (Memory)
111 points/W
260 points/W
TOTAL
2203 points/W
2413 points/W

Performance/GHz
i5-6600K
i5-5675R
Test#1 (Integers)
4420 points/GHz
3578 points/GHz
Test#2 (FP)
6795 points/GHz
5075 points/GHz
Test#3 (Generic, ZIP)
1653 points/GHz
1422 points/GHz
Test#1 (Memory)
2331 points/GHz
1514 points/GHz
TOTAL
15199 points/GHz
11589 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