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Core i5-5300U vs i7-8665U


Description
The i5-5300U is based on Broadwell architecture while the i7-8665U is based on Whiskey Lake.

Using the multithread performance as a reference, the i5-5300U gets a score of 76.7 k points while the i7-8665U gets 109.7 k points.

Summarizing, the i7-8665U is 1.4 times faster than the i5-5300U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306d4
806ec
Core
Broadwell-U
Whiskey Lake-U
Architecture
Base frecuency
2.3 GHz
1.9 GHz
Boost frecuency
2.9 GHz
4.8 GHz
Socket
BGA 1168
BGA 1528
Cores/Threads
2 /4
4/8
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
3072 kB
8192 kB
Date
March 2015
April 2019
Mean monothread perf.
38.29k points
35.19k points
Mean multithread perf.
76.71k points
109.72k 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
i5-5300U
i7-8665U
Test#1 (Integers)
17.2k
14.38k (x0.84)
Test#2 (FP)
14.53k
13.43k (x0.92)
Test#3 (Generic, ZIP)
3.44k
2.87k (x0.84)
Test#1 (Memory)
3.12k
4.49k (x1.44)
TOTAL
38.29k
35.19k (x0.92)

Multithread

i5-5300U

i7-8665U
Test#1 (Integers)
28.7k
47.22k (x1.65)
Test#2 (FP)
35.19k
46.99k (x1.34)
Test#3 (Generic, ZIP)
9.24k
10.08k (x1.09)
Test#1 (Memory)
3.57k
5.42k (x1.52)
TOTAL
76.71k
109.72k (x1.43)

Performance/W
i5-5300U
i7-8665U
Test#1 (Integers)
1914 points/W
3148 points/W
Test#2 (FP)
2346 points/W
3133 points/W
Test#3 (Generic, ZIP)
616 points/W
672 points/W
Test#1 (Memory)
238 points/W
361 points/W
TOTAL
5114 points/W
7314 points/W

Performance/GHz
i5-5300U
i7-8665U
Test#1 (Integers)
5931 points/GHz
2996 points/GHz
Test#2 (FP)
5011 points/GHz
2799 points/GHz
Test#3 (Generic, ZIP)
1186 points/GHz
599 points/GHz
Test#1 (Memory)
1076 points/GHz
936 points/GHz
TOTAL
13204 points/GHz
7330 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