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Core i3-5005U vs i7-7020U


Description
The i3-5005U is based on Broadwell architecture while the i7-7020U is based on Kaby Lake.

Using the multithread performance as a reference, the i3-5005U gets a score of 55 k points while the i7-7020U gets 73.1 k points.

Summarizing, the i7-7020U is 1.3 times faster than the i3-5005U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306d4
806ea
Core
Broadwell-U
Kaby Lake-U
Architecture
Base frecuency
2 GHz
2.3 GHz
Socket
BGA 1356
Cores/Threads
2 /2
2/4
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
256 kB
2x256 kB
Cache L3
3072 kB
3072 kB
Date
March 2015
April 2018
Mean monothread perf.
25.61k points
33.63k points
Mean multithread perf.
54.99k points
73.15k points

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i3-5005U
i7-7020U
Test#1 (Integers)
6.24k
8.17k (x1.31)
Test#2 (FP)
8.82k
12.42k (x1.41)
Test#3 (Generic, ZIP)
2.38k
2.87k (x1.21)
Test#1 (Memory)
2.4k
4.68k (x1.95)
TOTAL
19.84k
28.13k (x1.42)

Multithread

i3-5005U

i7-7020U
Test#1 (Integers)
12.33k
17.65k (x1.43)
Test#2 (FP)
25.82k
30.44k (x1.18)
Test#3 (Generic, ZIP)
6.56k
7.19k (x1.1)
Test#1 (Memory)
3.18k
4.79k (x1.51)
TOTAL
47.89k
60.07k (x1.25)

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
i3-5005U
i7-7020U
Test#1 (Integers)
11.08k
14.25k (x1.29)
Test#2 (FP)
9.5k
12.72k (x1.34)
Test#3 (Generic, ZIP)
2.51k
2.81k (x1.12)
Test#1 (Memory)
2.52k
3.86k (x1.53)
TOTAL
25.61k
33.63k (x1.31)

Multithread

i3-5005U

i7-7020U
Test#1 (Integers)
23.11k
31.11k (x1.35)
Test#2 (FP)
22.79k
31.15k (x1.37)
Test#3 (Generic, ZIP)
6.06k
6.9k (x1.14)
Test#1 (Memory)
3.03k
3.99k (x1.32)
TOTAL
54.99k
73.15k (x1.33)

Performance/W
i3-5005U
i7-7020U
Test#1 (Integers)
1541 points/W
2074 points/W
Test#2 (FP)
1519 points/W
2076 points/W
Test#3 (Generic, ZIP)
404 points/W
460 points/W
Test#1 (Memory)
202 points/W
266 points/W
TOTAL
3666 points/W
4877 points/W

Performance/GHz
i3-5005U
i7-7020U
Test#1 (Integers)
5541 points/GHz
6196 points/GHz
Test#2 (FP)
4749 points/GHz
5528 points/GHz
Test#3 (Generic, ZIP)
1255 points/GHz
1221 points/GHz
Test#1 (Memory)
1259 points/GHz
1679 points/GHz
TOTAL
12804 points/GHz
14624 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