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Core i5-5675R vs i7-7660U


Description
The i5-5675R is based on Broadwell architecture while the i7-7660U is based on Kaby Lake.

Using the multithread performance as a reference, the i5-5675R gets a score of 194.2 k points while the i7-7660U gets 132.8 k points.

Summarizing, the i5-5675R is 1.5 times faster than the i7-7660U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
40671
806e9
Core
Bradwell-H
Kaby Lake-U
Architecture
Base frecuency
3.1 GHz
2.5 GHz
Boost frecuency
3.6 GHz
4 GHz
Socket
BGA1364
BGA 1356
Cores/Threads
4/4
2/4
TDP
65 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
4096 kB
4096 kB
Date
June 2015
January 2017
Mean monothread perf.
51.43k points
57.46k points
Mean multithread perf.
194.2k points
132.81k 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
i5-5675R
i7-7660U
Test#1 (Integers)
21.91k
22.46k (x1.02)
Test#2 (FP)
18.59k
19.29k (x1.04)
Test#3 (Generic, ZIP)
5.2k
4.77k (x0.92)
Test#1 (Memory)
5.72k
10.94k (x1.91)
TOTAL
51.43k
57.46k (x1.12)

Multithread

i5-5675R

i7-7660U
Test#1 (Integers)
84.92k
56.67k (x0.67)
Test#2 (FP)
72.09k
46.95k (x0.65)
Test#3 (Generic, ZIP)
20.13k
12.36k (x0.61)
Test#1 (Memory)
17.07k
16.84k (x0.99)
TOTAL
194.2k
132.81k (x0.68)

Performance/W
i5-5675R
i7-7660U
Test#1 (Integers)
1306 points/W
3778 points/W
Test#2 (FP)
1109 points/W
3130 points/W
Test#3 (Generic, ZIP)
310 points/W
824 points/W
Test#1 (Memory)
263 points/W
1122 points/W
TOTAL
2988 points/W
8854 points/W

Performance/GHz
i5-5675R
i7-7660U
Test#1 (Integers)
6087 points/GHz
5614 points/GHz
Test#2 (FP)
5164 points/GHz
4823 points/GHz
Test#3 (Generic, ZIP)
1445 points/GHz
1193 points/GHz
Test#1 (Memory)
1590 points/GHz
2735 points/GHz
TOTAL
14286 points/GHz
14365 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