| | | | | | |

Core i3-6100 vs i7-6700K


Description
Both models i3-6100 and i7-6700K 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 i3-6100 gets a score of 112.3 k points while the i7-6700K gets 254.6 k points.

Summarizing, the i7-6700K is 2.3 times faster than the i3-6100 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
506e3
Core
Skylake-S
Skylake-S
Architecture
Base frecuency
3.7 GHz
4 GHz
Boost frecuency
3.7 GHz
4.2 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
2/2
4/8
TDP
51 W
95 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
256 kB
Cache L3
4096 kB
8192 kB
Date
September 2015
May 2015
Mean monothread perf.
52.84k points
63.22k points
Mean multithread perf.
112.28k points
254.56k 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
i3-6100
i7-6700K
Test#1 (Integers)
3.81k
4.07k (x1.07)
Test#2 (FP)
15.65k
16.62k (x1.06)
Test#3 (Generic, ZIP)
5.14k
5.23k (x1.02)
Test#1 (Memory)
4.28k
6.28k (x1.47)
TOTAL
28.89k
32.2k (x1.11)

Multithread

i3-6100

i7-6700K
Test#1 (Integers)
7.75k
16.37k (x2.11)
Test#2 (FP)
37.33k
77.34k (x2.07)
Test#3 (Generic, ZIP)
12.13k
25.65k (x2.12)
Test#1 (Memory)
3.56k
10.21k (x2.86)
TOTAL
60.77k
129.57k (x2.13)

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
i3-6100
i7-6700K
Test#1 (Integers)
13.76k
14.73k (x1.07)
Test#2 (FP)
19.96k
21.27k (x1.07)
Test#3 (Generic, ZIP)
5.44k
5.52k (x1.01)
Test#1 (Memory)
4.4k
6.32k (x1.44)
TOTAL
43.55k
47.84k (x1.1)

Multithread

i3-6100

i7-6700K
Test#1 (Integers)
28.99k
61.09k (x2.11)
Test#2 (FP)
45.75k
99.17k (x2.17)
Test#3 (Generic, ZIP)
12.72k
26.57k (x2.09)
Test#1 (Memory)
3.68k
10.26k (x2.79)
TOTAL
91.14k
197.09k (x2.16)

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
i3-6100
i7-6700K
Test#1 (Integers)
22.89k
25.78k (x1.13)
Test#2 (FP)
21.04k
23.08k (x1.1)
Test#3 (Generic, ZIP)
4.9k
5.32k (x1.09)
Test#1 (Memory)
4.01k
9.03k (x2.25)
TOTAL
52.84k
63.22k (x1.2)

Multithread

i3-6100

i7-6700K
Test#1 (Integers)
50.05k
112.83k (x2.25)
Test#2 (FP)
47.13k
106.86k (x2.27)
Test#3 (Generic, ZIP)
11.38k
25.76k (x2.26)
Test#1 (Memory)
3.72k
9.12k (x2.45)
TOTAL
112.28k
254.56k (x2.27)

Performance/W
i3-6100
i7-6700K
Test#1 (Integers)
981 points/W
1188 points/W
Test#2 (FP)
924 points/W
1125 points/W
Test#3 (Generic, ZIP)
223 points/W
271 points/W
Test#1 (Memory)
73 points/W
96 points/W
TOTAL
2202 points/W
2680 points/W

Performance/GHz
i3-6100
i7-6700K
Test#1 (Integers)
6187 points/GHz
6139 points/GHz
Test#2 (FP)
5686 points/GHz
5495 points/GHz
Test#3 (Generic, ZIP)
1325 points/GHz
1268 points/GHz
Test#1 (Memory)
1084 points/GHz
2150 points/GHz
TOTAL
14282 points/GHz
15052 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