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Core i5-5675R vs i7-8665U


Description
The i5-5675R is based on Broadwell architecture while the i7-8665U is based on Whiskey Lake.

Using the multithread performance as a reference, the i5-5675R gets a score of 194.2 k points while the i7-8665U gets 123.1 k points.

Summarizing, the i5-5675R is 1.6 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
40671
806ec
Core
Bradwell-H
Whiskey Lake-U
Architecture
Base frecuency
3.1 GHz
1.9 GHz
Boost frecuency
3.6 GHz
4.8 GHz
Socket
BGA1364
BGA 1528
Cores/Threads
4/4
4/8
TDP
65 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
4096 kB
8192 kB
Date
June 2015
April 2019
Mean monothread perf.
51.43k points
41.66k points
Mean multithread perf.
194.2k points
123.09k 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
i7-8665U
Test#1 (Integers)
21.91k
16.92k (x0.77)
Test#2 (FP)
18.59k
15.41k (x0.83)
Test#3 (Generic, ZIP)
5.2k
3.33k (x0.64)
Test#1 (Memory)
5.72k
6k (x1.05)
TOTAL
51.43k
41.66k (x0.81)

Multithread

i5-5675R

i7-8665U
Test#1 (Integers)
84.92k
53.19k (x0.63)
Test#2 (FP)
72.09k
52.4k (x0.73)
Test#3 (Generic, ZIP)
20.13k
11.67k (x0.58)
Test#1 (Memory)
17.07k
5.83k (x0.34)
TOTAL
194.2k
123.09k (x0.63)

Performance/W
i5-5675R
i7-8665U
Test#1 (Integers)
1306 points/W
3546 points/W
Test#2 (FP)
1109 points/W
3493 points/W
Test#3 (Generic, ZIP)
310 points/W
778 points/W
Test#1 (Memory)
263 points/W
389 points/W
TOTAL
2988 points/W
8206 points/W

Performance/GHz
i5-5675R
i7-8665U
Test#1 (Integers)
6087 points/GHz
3525 points/GHz
Test#2 (FP)
5164 points/GHz
3210 points/GHz
Test#3 (Generic, ZIP)
1445 points/GHz
694 points/GHz
Test#1 (Memory)
1590 points/GHz
1251 points/GHz
TOTAL
14286 points/GHz
8680 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