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Core i7-6900K vs i5-5675R


Description
Both models i7-6900K and i5-5675R are based on Broadwell architecture.



Using the multithread performance as a reference, the i7-6900K gets a score of 427.5 k points while the i5-5675R gets 194.2 k points.

Summarizing, the i7-6900K is 2.2 times faster than the i5-5675R. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406f1
40671
Core
Broadwell-E
Bradwell-H
Architecture
Base frecuency
3.2 GHz
3.1 GHz
Boost frecuency
3.7 GHz
3.6 GHz
Socket
LGA 2011-3
BGA1364
Cores/Threads
8/16
4/4
TDP
140 W
65 W
Cache L1 (d+i)
8x32+8x32 kB
4x32+4x32 kB
Cache L2
8x256 kB
4x256 kB
Cache L3
20480 kB
4096 kB
Date
September 2016
June 2015
Mean monothread perf.
49.76k points
51.43k points
Mean multithread perf.
427.51k points
194.2k points

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
i7-6900K
i5-5675R
Test#1 (Integers)
23.11k
21.91k (x0.95)
Test#2 (FP)
17.84k
18.59k (x1.04)
Test#3 (Generic, ZIP)
5.34k
5.2k (x0.97)
Test#1 (Memory)
3.47k
5.72k (x1.65)
TOTAL
49.76k
51.43k (x1.03)

Multithread

i7-6900K

i5-5675R
Test#1 (Integers)
184.19k
84.92k (x0.46)
Test#2 (FP)
181.2k
72.09k (x0.4)
Test#3 (Generic, ZIP)
47.44k
20.13k (x0.42)
Test#1 (Memory)
14.69k
17.07k (x1.16)
TOTAL
427.51k
194.2k (x0.45)

Performance/W
i7-6900K
i5-5675R
Test#1 (Integers)
1316 points/W
1306 points/W
Test#2 (FP)
1294 points/W
1109 points/W
Test#3 (Generic, ZIP)
339 points/W
310 points/W
Test#1 (Memory)
105 points/W
263 points/W
TOTAL
3054 points/W
2988 points/W

Performance/GHz
i7-6900K
i5-5675R
Test#1 (Integers)
6247 points/GHz
6087 points/GHz
Test#2 (FP)
4822 points/GHz
5164 points/GHz
Test#3 (Generic, ZIP)
1444 points/GHz
1445 points/GHz
Test#1 (Memory)
938 points/GHz
1590 points/GHz
TOTAL
13450 points/GHz
14286 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