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Core i7-8665U vs Ryzen 5 4500U


Description
The i7-8665U is based on Whiskey Lake architecture while the 4500U is based on Zen 2.

Using the multithread performance as a reference, the i7-8665U gets a score of 109.7 k points while the 4500U gets 194.3 k points.

Summarizing, the 4500U is 1.8 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806ec
860f01
Core
Whiskey Lake-U
Renoir
Architecture
Base frecuency
1.9 GHz
2.3 GHz
Boost frecuency
4.8 GHz
4 GHz
Socket
BGA 1528
BGA 1140
Cores/Threads
4/8
6/6
TDP
15 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x512 kB
Cache L3
8192 kB
2x4096 kB
Date
April 2019
January 2020
Mean monothread perf.
35.19k points
52.44k points
Mean multithread perf.
109.72k points
194.34k 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
4500U
Test#1 (Integers)
14.38k
15.37k (x1.07)
Test#2 (FP)
13.43k
23.02k (x1.71)
Test#3 (Generic, ZIP)
2.87k
7.74k (x2.69)
Test#1 (Memory)
4.49k
6.32k (x1.41)
TOTAL
35.19k
52.44k (x1.49)

Multithread

i7-8665U

4500U
Test#1 (Integers)
47.22k
52.52k (x1.11)
Test#2 (FP)
46.99k
99.84k (x2.12)
Test#3 (Generic, ZIP)
10.08k
36.42k (x3.61)
Test#1 (Memory)
5.42k
5.56k (x1.02)
TOTAL
109.72k
194.34k (x1.77)

Performance/W
i7-8665U
4500U
Test#1 (Integers)
3148 points/W
3502 points/W
Test#2 (FP)
3133 points/W
6656 points/W
Test#3 (Generic, ZIP)
672 points/W
2428 points/W
Test#1 (Memory)
361 points/W
370 points/W
TOTAL
7314 points/W
12956 points/W

Performance/GHz
i7-8665U
4500U
Test#1 (Integers)
2996 points/GHz
3842 points/GHz
Test#2 (FP)
2799 points/GHz
5755 points/GHz
Test#3 (Generic, ZIP)
599 points/GHz
1935 points/GHz
Test#1 (Memory)
936 points/GHz
1579 points/GHz
TOTAL
7330 points/GHz
13111 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