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Core i7-6500U vs i3-6100U


Description
Both models i7-6500U and i3-6100U are based on Skylake architecture.

Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.

Using the multithread performance as a reference, the i7-6500U gets a score of 97.5 k points while the i3-6100U gets 69.9 k points.

Summarizing, the i7-6500U is 1.4 times faster than the i3-6100U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
406e3
406e3
Core
Skylake-U
Skylake-U
Architecture
Base frecuency
2.5 GHz
2.3 GHz
Boost frecuency
3.1 GHz
2.3 GHz
Socket
BGA1356
BGA1356
Cores/Threads
2/4
2/4
TDP
15 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
2x32+2x32 kB
Cache L2
4096 kB
2x256 kB
Cache L3
kB
3072 kB
Date
September 2015
September 2015
Mean monothread perf.
46.25k points
30.73k points
Mean multithread perf.
97.52k points
69.94k 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
i7-6500U
i3-6100U
Test#1 (Integers)
2.98k
2.27k (x0.76)
Test#2 (FP)
12.19k
9.18k (x0.75)
Test#3 (Generic, ZIP)
3.91k
2.97k (x0.76)
Test#1 (Memory)
5.3k
3.79k (x0.71)
TOTAL
24.37k
18.21k (x0.75)

Multithread

i7-6500U

i3-6100U
Test#1 (Integers)
6.1k
4.79k (x0.79)
Test#2 (FP)
28.73k
23.04k (x0.8)
Test#3 (Generic, ZIP)
9.56k
7.55k (x0.79)
Test#1 (Memory)
6.71k
3.86k (x0.58)
TOTAL
51.09k
39.24k (x0.77)

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
i7-6500U
i3-6100U
Test#1 (Integers)
11.11k
7.99k (x0.72)
Test#2 (FP)
15.97k
11.82k (x0.74)
Test#3 (Generic, ZIP)
4.25k
2.97k (x0.7)
Test#1 (Memory)
5.66k
3.75k (x0.66)
TOTAL
36.99k
26.52k (x0.72)

Multithread

i7-6500U

i3-6100U
Test#1 (Integers)
23.1k
15.44k (x0.67)
Test#2 (FP)
36.73k
23.79k (x0.65)
Test#3 (Generic, ZIP)
9.99k
6.93k (x0.69)
Test#1 (Memory)
7k
4.03k (x0.58)
TOTAL
76.82k
50.19k (x0.65)

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
i7-6500U
i3-6100U
Test#1 (Integers)
11.09k
8.06k (x0.73)
Test#2 (FP)
17.1k
12.85k (x0.75)
Test#3 (Generic, ZIP)
4.12k
3.14k (x0.76)
Test#1 (Memory)
5.58k
4.01k (x0.72)
TOTAL
37.9k
28.06k (x0.74)

Multithread

i7-6500U

i3-6100U
Test#1 (Integers)
23.3k
16.58k (x0.71)
Test#2 (FP)
38.52k
28.88k (x0.75)
Test#3 (Generic, ZIP)
9.95k
7.38k (x0.74)
Test#1 (Memory)
6.95k
3.82k (x0.55)
TOTAL
78.72k
56.66k (x0.72)

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
i7-6500U
i3-6100U
Test#1 (Integers)
19.47k
12.55k (x0.64)
Test#2 (FP)
17.58k
12.19k (x0.69)
Test#3 (Generic, ZIP)
4.05k
2.81k (x0.69)
Test#1 (Memory)
5.15k
3.18k (x0.62)
TOTAL
46.25k
30.73k (x0.66)

Multithread

i7-6500U

i3-6100U
Test#1 (Integers)
42.05k
29.33k (x0.7)
Test#2 (FP)
40.2k
28.81k (x0.72)
Test#3 (Generic, ZIP)
9.4k
6.46k (x0.69)
Test#1 (Memory)
5.86k
5.33k (x0.91)
TOTAL
97.52k
69.94k (x0.72)

Performance/W
i7-6500U
i3-6100U
Test#1 (Integers)
2803 points/W
1956 points/W
Test#2 (FP)
2680 points/W
1921 points/W
Test#3 (Generic, ZIP)
626 points/W
431 points/W
Test#1 (Memory)
391 points/W
356 points/W
TOTAL
6501 points/W
4663 points/W

Performance/GHz
i7-6500U
i3-6100U
Test#1 (Integers)
6279 points/GHz
5459 points/GHz
Test#2 (FP)
5672 points/GHz
5302 points/GHz
Test#3 (Generic, ZIP)
1305 points/GHz
1220 points/GHz
Test#1 (Memory)
1662 points/GHz
1382 points/GHz
TOTAL
14918 points/GHz
13362 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