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Core i7-8665U vs A9 9425


Description
The i7-8665U is based on Whiskey Lake architecture while the 9425 is based on Excavator.

Using the multithread performance as a reference, the i7-8665U gets a score of 109.7 k points while the 9425 gets 41.7 k points.

Summarizing, the i7-8665U is 2.6 times faster than the 9425. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ec
670f00
Core
Whiskey Lake-U
Stoney Ridge
Architecture
Base frecuency
1.9 GHz
3.1 GHz
Boost frecuency
4.8 GHz
3.7 GHz
Socket
BGA 1528
BGA-FP4
Cores/Threads
4/8
2/2
TDP
15 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
96+2x32 kB
Cache L2
4x256 kB
1024 kB
Cache L3
8192 kB
0 kB
Date
April 2019
May 2018
Mean monothread perf.
35.19k points
31.31k points
Mean multithread perf.
109.72k points
41.73k 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
i7-8665U
9425
Test#1 (Integers)
14.38k
11.23k (x0.78)
Test#2 (FP)
13.43k
14.7k (x1.09)
Test#3 (Generic, ZIP)
2.87k
3.15k (x1.09)
Test#1 (Memory)
4.49k
2.24k (x0.5)
TOTAL
35.19k
31.31k (x0.89)

Multithread

i7-8665U

9425
Test#1 (Integers)
47.22k
16.58k (x0.35)
Test#2 (FP)
46.99k
17.84k (x0.38)
Test#3 (Generic, ZIP)
10.08k
5.09k (x0.5)
Test#1 (Memory)
5.42k
2.23k (x0.41)
TOTAL
109.72k
41.73k (x0.38)

Performance/W
i7-8665U
9425
Test#1 (Integers)
3148 points/W
1105 points/W
Test#2 (FP)
3133 points/W
1189 points/W
Test#3 (Generic, ZIP)
672 points/W
339 points/W
Test#1 (Memory)
361 points/W
148 points/W
TOTAL
7314 points/W
2782 points/W

Performance/GHz
i7-8665U
9425
Test#1 (Integers)
2996 points/GHz
3034 points/GHz
Test#2 (FP)
2799 points/GHz
3972 points/GHz
Test#3 (Generic, ZIP)
599 points/GHz
850 points/GHz
Test#1 (Memory)
936 points/GHz
605 points/GHz
TOTAL
7330 points/GHz
8461 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