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Core i7-7500U vs i3-7100


Description
Both models i7-7500U and i3-7100 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 i7-7500U gets a score of 86.9 k points while the i3-7100 gets 126.5 k points.

Summarizing, the i3-7100 is 1.5 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
906e9
Core
Kaby Lake-U
Kaby Lake-S
Architecture
Base frecuency
2.7 GHz
3.9 GHz
Boost frecuency
3.5 GHz
3.9 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
2/4
2/4
TDP
15 W
51 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
2x256 kB
2x256 kB
Cache L3
4096 kB
3072 kB
Date
August 2016
January 2017
Mean monothread perf.
48.67k points
58.55k points
Mean multithread perf.
86.94k points
126.47k 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
i7-7500U
i3-7100
Test#1 (Integers)
3.53k
4.01k (x1.14)
Test#2 (FP)
14.67k
16.38k (x1.12)
Test#3 (Generic, ZIP)
4.84k
5.31k (x1.1)
Test#1 (Memory)
6.26k
3.98k (x0.64)
TOTAL
29.29k
29.69k (x1.01)

Multithread

i7-7500U

i3-7100
Test#1 (Integers)
7.26k
8.1k (x1.11)
Test#2 (FP)
35.04k
38.7k (x1.1)
Test#3 (Generic, ZIP)
11.28k
12.69k (x1.13)
Test#1 (Memory)
5.69k
3.76k (x0.66)
TOTAL
59.27k
63.24k (x1.07)

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
i7-7500U
i3-7100
Test#1 (Integers)
12.93k
14.04k (x1.09)
Test#2 (FP)
18.63k
20.55k (x1.1)
Test#3 (Generic, ZIP)
5.03k
5.41k (x1.07)
Test#1 (Memory)
6.16k
3.99k (x0.65)
TOTAL
42.75k
43.99k (x1.03)

Multithread

i7-7500U

i3-7100
Test#1 (Integers)
27.13k
30.09k (x1.11)
Test#2 (FP)
43.19k
47.84k (x1.11)
Test#3 (Generic, ZIP)
11.7k
13.13k (x1.12)
Test#1 (Memory)
4.99k
3.52k (x0.71)
TOTAL
87.02k
94.59k (x1.09)

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
i7-7500U
i3-7100
Test#1 (Integers)
12.71k
14.41k (x1.13)
Test#2 (FP)
18.61k
22.38k (x1.2)
Test#3 (Generic, ZIP)
4.78k
5.45k (x1.14)
Test#1 (Memory)
6.63k
4.96k (x0.75)
TOTAL
42.72k
47.21k (x1.11)

Multithread

i7-7500U

i3-7100
Test#1 (Integers)
27.27k
30.48k (x1.12)
Test#2 (FP)
44.7k
52.08k (x1.17)
Test#3 (Generic, ZIP)
11.33k
12.97k (x1.15)
Test#1 (Memory)
5.55k
4.56k (x0.82)
TOTAL
88.86k
100.1k (x1.13)

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
i7-7500U
i3-7100
Test#1 (Integers)
20.74k
25.77k (x1.24)
Test#2 (FP)
18.41k
23.26k (x1.26)
Test#3 (Generic, ZIP)
3.98k
5.43k (x1.36)
Test#1 (Memory)
5.54k
4.09k (x0.74)
TOTAL
48.67k
58.55k (x1.2)

Multithread

i7-7500U

i3-7100
Test#1 (Integers)
37.34k
54.98k (x1.47)
Test#2 (FP)
35.79k
54.73k (x1.53)
Test#3 (Generic, ZIP)
8.34k
13.12k (x1.57)
Test#1 (Memory)
5.48k
3.65k (x0.67)
TOTAL
86.94k
126.47k (x1.45)

Performance/W
i7-7500U
i3-7100
Test#1 (Integers)
2489 points/W
1078 points/W
Test#2 (FP)
2386 points/W
1073 points/W
Test#3 (Generic, ZIP)
556 points/W
257 points/W
Test#1 (Memory)
365 points/W
72 points/W
TOTAL
5796 points/W
2480 points/W

Performance/GHz
i7-7500U
i3-7100
Test#1 (Integers)
5926 points/GHz
6607 points/GHz
Test#2 (FP)
5260 points/GHz
5964 points/GHz
Test#3 (Generic, ZIP)
1137 points/GHz
1393 points/GHz
Test#1 (Memory)
1584 points/GHz
1049 points/GHz
TOTAL
13907 points/GHz
15014 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