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Core i3-7100U vs i3-6100


Description
The i3-7100U is based on Kaby Lake architecture while the i3-6100 is based on Skylake.

Using the multithread performance as a reference, the i3-7100U gets a score of 79.6 k points while the i3-6100 gets 112.3 k points.

Summarizing, the i3-6100 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
506e3
Core
Kaby Lake-U
Skylake-S
Architecture
Base frecuency
2.4 GHz
3.7 GHz
Socket
BGA 1356
LGA 1151
Cores/Threads
2/4
2/2
TDP
15 W
51 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
256 kB
Cache L3
3072 kB
4096 kB
Date
August 2016
September 2015
Mean monothread perf.
33.38k points
52.84k points
Mean multithread perf.
79.6k points
112.28k 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
i3-6100
Test#1 (Integers)
2.41k
3.81k (x1.59)
Test#2 (FP)
9.77k
15.65k (x1.6)
Test#3 (Generic, ZIP)
3.13k
5.14k (x1.64)
Test#1 (Memory)
3.55k
4.28k (x1.21)
TOTAL
18.86k
28.89k (x1.53)

Multithread

i3-7100U

i3-6100
Test#1 (Integers)
5k
7.75k (x1.55)
Test#2 (FP)
21.48k
37.33k (x1.74)
Test#3 (Generic, ZIP)
7.39k
12.13k (x1.64)
Test#1 (Memory)
3.18k
3.56k (x1.12)
TOTAL
37.05k
60.77k (x1.64)

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
i3-6100
Test#1 (Integers)
8.66k
13.76k (x1.59)
Test#2 (FP)
12.31k
19.96k (x1.62)
Test#3 (Generic, ZIP)
3.28k
5.44k (x1.66)
Test#1 (Memory)
3.92k
4.4k (x1.12)
TOTAL
28.16k
43.55k (x1.55)

Multithread

i3-7100U

i3-6100
Test#1 (Integers)
17.87k
28.99k (x1.62)
Test#2 (FP)
28.59k
45.75k (x1.6)
Test#3 (Generic, ZIP)
7.68k
12.72k (x1.66)
Test#1 (Memory)
3.15k
3.68k (x1.17)
TOTAL
57.28k
91.14k (x1.59)

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
i3-6100
Test#1 (Integers)
8.76k
13.78k (x1.57)
Test#2 (FP)
13.49k
21.21k (x1.57)
Test#3 (Generic, ZIP)
3.21k
5.2k (x1.62)
Test#1 (Memory)
3.9k
3.73k (x0.96)
TOTAL
29.36k
43.92k (x1.5)

Multithread

i3-7100U

i3-6100
Test#1 (Integers)
18.33k
29.02k (x1.58)
Test#2 (FP)
31.08k
49.55k (x1.59)
Test#3 (Generic, ZIP)
7.5k
12.3k (x1.64)
Test#1 (Memory)
3.61k
3.28k (x0.91)
TOTAL
60.52k
94.15k (x1.56)

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
i3-6100
Test#1 (Integers)
13.46k
22.89k (x1.7)
Test#2 (FP)
13.45k
21.04k (x1.56)
Test#3 (Generic, ZIP)
3.08k
4.9k (x1.59)
Test#1 (Memory)
3.4k
4.01k (x1.18)
TOTAL
33.38k
52.84k (x1.58)

Multithread

i3-7100U

i3-6100
Test#1 (Integers)
34.95k
50.05k (x1.43)
Test#2 (FP)
33.53k
47.13k (x1.41)
Test#3 (Generic, ZIP)
7.74k
11.38k (x1.47)
Test#1 (Memory)
3.38k
3.72k (x1.1)
TOTAL
79.6k
112.28k (x1.41)

Performance/W
i3-7100U
i3-6100
Test#1 (Integers)
2330 points/W
981 points/W
Test#2 (FP)
2235 points/W
924 points/W
Test#3 (Generic, ZIP)
516 points/W
223 points/W
Test#1 (Memory)
225 points/W
73 points/W
TOTAL
5307 points/W
2202 points/W

Performance/GHz
i3-7100U
i3-6100
Test#1 (Integers)
5606 points/GHz
6187 points/GHz
Test#2 (FP)
5606 points/GHz
5686 points/GHz
Test#3 (Generic, ZIP)
1282 points/GHz
1325 points/GHz
Test#1 (Memory)
1415 points/GHz
1084 points/GHz
TOTAL
13909 points/GHz
14282 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