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Core i3-7100U vs i5-7300U


Description
Both models i3-7100U and i5-7300U 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 i3-7100U gets a score of 79.6 k points while the i5-7300U gets 109.1 k points.

Summarizing, the i5-7300U is 1.4 times faster than the i3-7100U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
806e9
Core
Kaby Lake-U
Kaby Lake-U
Architecture
Base frecuency
2.4 GHz
2.6 GHz
Boost frecuency
2.4 GHz
3.5 GHz
Socket
BGA 1356
BGA1356
Cores/Threads
2/4
2/4
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
3072 kB
3072 kB
Date
August 2016
January 2017
Mean monothread perf.
33.38k points
48.25k points
Mean multithread perf.
79.6k points
109.1k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i3-7100U
i5-7300U
Test#1 (Integers)
2.41k
3.11k (x1.29)
Test#2 (FP)
9.77k
12.24k (x1.25)
Test#3 (Generic, ZIP)
3.13k
4.1k (x1.31)
Test#1 (Memory)
3.55k
4.96k (x1.4)
TOTAL
18.86k
24.41k (x1.29)

Multithread

i3-7100U

i5-7300U
Test#1 (Integers)
5k
6.98k (x1.4)
Test#2 (FP)
21.48k
32.05k (x1.49)
Test#3 (Generic, ZIP)
7.39k
10.82k (x1.46)
Test#1 (Memory)
3.18k
5.52k (x1.73)
TOTAL
37.05k
55.36k (x1.49)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i3-7100U
i5-7300U
Test#1 (Integers)
8.66k
9.96k (x1.15)
Test#2 (FP)
12.31k
15.11k (x1.23)
Test#3 (Generic, ZIP)
3.28k
3.87k (x1.18)
Test#1 (Memory)
3.92k
4.54k (x1.16)
TOTAL
28.16k
33.47k (x1.19)

Multithread

i3-7100U

i5-7300U
Test#1 (Integers)
17.87k
25.26k (x1.41)
Test#2 (FP)
28.59k
40.6k (x1.42)
Test#3 (Generic, ZIP)
7.68k
11.24k (x1.46)
Test#1 (Memory)
3.15k
5.83k (x1.85)
TOTAL
57.28k
82.94k (x1.45)

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
i3-7100U
i5-7300U
Test#1 (Integers)
8.76k
9.85k (x1.12)
Test#2 (FP)
13.49k
17.37k (x1.29)
Test#3 (Generic, ZIP)
3.21k
3.98k (x1.24)
Test#1 (Memory)
3.9k
5.11k (x1.31)
TOTAL
29.36k
36.31k (x1.24)

Multithread

i3-7100U

i5-7300U
Test#1 (Integers)
18.33k
25.37k (x1.38)
Test#2 (FP)
31.08k
43.43k (x1.4)
Test#3 (Generic, ZIP)
7.5k
10.62k (x1.42)
Test#1 (Memory)
3.61k
5.4k (x1.5)
TOTAL
60.52k
84.82k (x1.4)

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
i3-7100U
i5-7300U
Test#1 (Integers)
13.46k
20.18k (x1.5)
Test#2 (FP)
13.45k
18.57k (x1.38)
Test#3 (Generic, ZIP)
3.08k
4.24k (x1.38)
Test#1 (Memory)
3.4k
5.25k (x1.55)
TOTAL
33.38k
48.25k (x1.45)

Multithread

i3-7100U

i5-7300U
Test#1 (Integers)
34.95k
47.75k (x1.37)
Test#2 (FP)
33.53k
44.82k (x1.34)
Test#3 (Generic, ZIP)
7.74k
10.82k (x1.4)
Test#1 (Memory)
3.38k
5.7k (x1.69)
TOTAL
79.6k
109.1k (x1.37)

Performance/W
i3-7100U
i5-7300U
Test#1 (Integers)
2330 points/W
3184 points/W
Test#2 (FP)
2235 points/W
2988 points/W
Test#3 (Generic, ZIP)
516 points/W
721 points/W
Test#1 (Memory)
225 points/W
380 points/W
TOTAL
5307 points/W
7273 points/W

Performance/GHz
i3-7100U
i5-7300U
Test#1 (Integers)
5606 points/GHz
5766 points/GHz
Test#2 (FP)
5606 points/GHz
5306 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1213 points/GHz
Test#1 (Memory)
1415 points/GHz
1501 points/GHz
TOTAL
13909 points/GHz
13785 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