Core i7-7020U vs i5-8350U
Description
Both models i7-7020U and i5-8350U are based on Kaby Lake architecture.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i7-7020U gets a score of 73.1 k points while the i5-8350U gets 112.1 k points.
Summarizing, the i5-8350U is 1.5 times faster than the i7-7020U. To get a proper comparison between both models, take a look to the data shown below.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i7-7020U gets a score of 73.1 k points while the i5-8350U gets 112.1 k points.
Summarizing, the i5-8350U is 1.5 times faster than the i7-7020U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806ea
806ea
Core
Kaby Lake-U
Kaby Lake-R
Base frecuency
2.3 GHz
1.7 GHz
Boost frecuency
2.3 GHz
3.6 GHz
Socket
BGA 1356
BGA 1356
Cores/Threads
2/4
4/8
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
April 2018
August 2017
Mean monothread perf.
33.63k points
38.31k points
Mean multithread perf.
73.15k points
112.12k 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
i7-7020U
i5-8350U
Test#1 (Integers)
14.25k
16.74k (x1.17)
Test#2 (FP)
12.72k
14.66k (x1.15)
Test#3 (Generic, ZIP)
2.81k
2.79k (x1)
Test#1 (Memory)
3.86k
4.12k (x1.07)
TOTAL
33.63k
38.31k (x1.14)
Multithread
i7-7020U
i5-8350U
Test#1 (Integers)
31.11k
51.05k (x1.64)
Test#2 (FP)
31.15k
45.59k (x1.46)
Test#3 (Generic, ZIP)
6.9k
10.69k (x1.55)
Test#1 (Memory)
3.99k
4.78k (x1.2)
TOTAL
73.15k
112.12k (x1.53)
Performance/W
i7-7020U
i5-8350U
Test#1 (Integers)
2074 points/W
3403 points/W
Test#2 (FP)
2076 points/W
3039 points/W
Test#3 (Generic, ZIP)
460 points/W
713 points/W
Test#1 (Memory)
266 points/W
319 points/W
TOTAL
4877 points/W
7475 points/W
Performance/GHz
i7-7020U
i5-8350U
Test#1 (Integers)
6196 points/GHz
4650 points/GHz
Test#2 (FP)
5528 points/GHz
4071 points/GHz
Test#3 (Generic, ZIP)
1221 points/GHz
776 points/GHz
Test#1 (Memory)
1679 points/GHz
1144 points/GHz
TOTAL
14624 points/GHz
10642 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4