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Core i3-7100 vs i5-8250U


Description
Both models i3-7100 and i5-8250U 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 i3-7100 gets a score of 126.5 k points while the i5-8250U gets 161.3 k points.

Summarizing, the i5-8250U is 1.3 times faster than the i3-7100. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
806ea
Core
Kaby Lake-S
Kaby Lake-R
Architecture
Base frecuency
3.9 GHz
1.6 GHz
Boost frecuency
3.9 GHz
3.4 GHz
Socket
LGA 1151
BGA1356
Cores/Threads
2/4
4/8
TDP
51 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
January 2017
August 2017
Mean monothread perf.
58.55k points
54.31k points
Mean multithread perf.
126.47k points
161.26k 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
i3-7100
i5-8250U
Test#1 (Integers)
4.01k
3.32k (x0.83)
Test#2 (FP)
16.38k
13.5k (x0.82)
Test#3 (Generic, ZIP)
5.31k
4.11k (x0.77)
Test#1 (Memory)
3.98k
7.42k (x1.86)
TOTAL
29.69k
28.34k (x0.95)

Multithread

i3-7100

i5-8250U
Test#1 (Integers)
8.1k
13.97k (x1.73)
Test#2 (FP)
38.7k
50.8k (x1.31)
Test#3 (Generic, ZIP)
12.69k
14.71k (x1.16)
Test#1 (Memory)
3.76k
4.76k (x1.27)
TOTAL
63.24k
84.24k (x1.33)

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
i3-7100
i5-8250U
Test#1 (Integers)
14.04k
12.41k (x0.88)
Test#2 (FP)
20.55k
18.11k (x0.88)
Test#3 (Generic, ZIP)
5.41k
4.79k (x0.89)
Test#1 (Memory)
3.99k
8.16k (x2.04)
TOTAL
43.99k
43.46k (x0.99)

Multithread

i3-7100

i5-8250U
Test#1 (Integers)
30.09k
42.48k (x1.41)
Test#2 (FP)
47.84k
60.2k (x1.26)
Test#3 (Generic, ZIP)
13.13k
14.85k (x1.13)
Test#1 (Memory)
3.52k
4.77k (x1.36)
TOTAL
94.59k
122.3k (x1.29)

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
i3-7100
i5-8250U
Test#1 (Integers)
14.41k
12.59k (x0.87)
Test#2 (FP)
22.38k
18.89k (x0.84)
Test#3 (Generic, ZIP)
5.45k
4.65k (x0.85)
Test#1 (Memory)
4.96k
8.2k (x1.65)
TOTAL
47.21k
44.32k (x0.94)

Multithread

i3-7100

i5-8250U
Test#1 (Integers)
30.48k
45.91k (x1.51)
Test#2 (FP)
52.08k
69.55k (x1.34)
Test#3 (Generic, ZIP)
12.97k
16.79k (x1.29)
Test#1 (Memory)
4.56k
4.83k (x1.06)
TOTAL
100.1k
137.09k (x1.37)

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
i3-7100
i5-8250U
Test#1 (Integers)
25.77k
22.11k (x0.86)
Test#2 (FP)
23.26k
19.64k (x0.84)
Test#3 (Generic, ZIP)
5.43k
4.54k (x0.83)
Test#1 (Memory)
4.09k
8.03k (x1.96)
TOTAL
58.55k
54.31k (x0.93)

Multithread

i3-7100

i5-8250U
Test#1 (Integers)
54.98k
74.19k (x1.35)
Test#2 (FP)
54.73k
66.27k (x1.21)
Test#3 (Generic, ZIP)
13.12k
15.97k (x1.22)
Test#1 (Memory)
3.65k
4.83k (x1.32)
TOTAL
126.47k
161.26k (x1.28)

Performance/W
i3-7100
i5-8250U
Test#1 (Integers)
1078 points/W
4946 points/W
Test#2 (FP)
1073 points/W
4418 points/W
Test#3 (Generic, ZIP)
257 points/W
1065 points/W
Test#1 (Memory)
72 points/W
322 points/W
TOTAL
2480 points/W
10751 points/W

Performance/GHz
i3-7100
i5-8250U
Test#1 (Integers)
6607 points/GHz
6503 points/GHz
Test#2 (FP)
5964 points/GHz
5777 points/GHz
Test#3 (Generic, ZIP)
1393 points/GHz
1334 points/GHz
Test#1 (Memory)
1049 points/GHz
2361 points/GHz
TOTAL
15014 points/GHz
15975 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