| | | | | | |

Core i3-6100 vs i7-8700k


Description
The i3-6100 is based on Skylake architecture while the i7-8700k is based on Coffee Lake.

Using the multithread performance as a reference, the i3-6100 gets a score of 112.3 k points while the i7-8700k gets 443.8 k points.

Summarizing, the i7-8700k is 4 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
906ea
Core
Skylake-S
Coffee Lake-S
Architecture
Base frecuency
3.7 GHz
3.7 GHz
Boost frecuency
3.7 GHz
4.7 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
2/2
6/12
TDP
51 W
95 W
Cache L1 (d+i)
32+32 kB
6x32+6x32 kB
Cache L2
256 kB
6x256 kB
Cache L3
4096 kB
12288 kB
Date
September 2015
October 2017
Mean monothread perf.
52.84k points
80.6k points
Mean multithread perf.
112.28k points
443.77k 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
i7-8700k
Test#1 (Integers)
3.81k
4.13k (x1.08)
Test#2 (FP)
15.65k
16.96k (x1.08)
Test#3 (Generic, ZIP)
5.14k
5.56k (x1.08)
Test#1 (Memory)
4.28k
12.85k (x3)
TOTAL
28.89k
39.5k (x1.37)

Multithread

i3-6100

i7-8700k
Test#1 (Integers)
7.75k
24.01k (x3.1)
Test#2 (FP)
37.33k
108.69k (x2.91)
Test#3 (Generic, ZIP)
12.13k
36.62k (x3.02)
Test#1 (Memory)
3.56k
9.33k (x2.62)
TOTAL
60.77k
178.64k (x2.94)

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
i7-8700k
Test#1 (Integers)
13.76k
12.92k (x0.94)
Test#2 (FP)
19.96k
20.68k (x1.04)
Test#3 (Generic, ZIP)
5.44k
5.3k (x0.97)
Test#1 (Memory)
4.4k
12.59k (x2.86)
TOTAL
43.55k
51.48k (x1.18)

Multithread

i3-6100

i7-8700k
Test#1 (Integers)
28.99k
94.26k (x3.25)
Test#2 (FP)
45.75k
152.55k (x3.33)
Test#3 (Generic, ZIP)
12.72k
39.74k (x3.12)
Test#1 (Memory)
3.68k
8.53k (x2.32)
TOTAL
91.14k
295.07k (x3.24)

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
i3-6100
i7-8700k
Test#1 (Integers)
13.78k
16.87k (x1.22)
Test#2 (FP)
21.21k
26.12k (x1.23)
Test#3 (Generic, ZIP)
5.2k
6.33k (x1.22)
Test#1 (Memory)
3.73k
13.71k (x3.67)
TOTAL
43.92k
63.03k (x1.44)

Multithread

i3-6100

i7-8700k
Test#1 (Integers)
29.02k
105.74k (x3.64)
Test#2 (FP)
49.55k
180.52k (x3.64)
Test#3 (Generic, ZIP)
12.3k
44.99k (x3.66)
Test#1 (Memory)
3.28k
8.51k (x2.6)
TOTAL
94.15k
339.77k (x3.61)

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
i7-8700k
Test#1 (Integers)
22.89k
31.2k (x1.36)
Test#2 (FP)
21.04k
27.82k (x1.32)
Test#3 (Generic, ZIP)
4.9k
6.57k (x1.34)
Test#1 (Memory)
4.01k
15k (x3.74)
TOTAL
52.84k
80.6k (x1.53)

Multithread

i3-6100

i7-8700k
Test#1 (Integers)
50.05k
202.42k (x4.04)
Test#2 (FP)
47.13k
186.33k (x3.95)
Test#3 (Generic, ZIP)
11.38k
44.96k (x3.95)
Test#1 (Memory)
3.72k
10.05k (x2.71)
TOTAL
112.28k
443.77k (x3.95)

Performance/W
i3-6100
i7-8700k
Test#1 (Integers)
981 points/W
2131 points/W
Test#2 (FP)
924 points/W
1961 points/W
Test#3 (Generic, ZIP)
223 points/W
473 points/W
Test#1 (Memory)
73 points/W
106 points/W
TOTAL
2202 points/W
4671 points/W

Performance/GHz
i3-6100
i7-8700k
Test#1 (Integers)
6187 points/GHz
6639 points/GHz
Test#2 (FP)
5686 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
1325 points/GHz
1397 points/GHz
Test#1 (Memory)
1084 points/GHz
3192 points/GHz
TOTAL
14282 points/GHz
17148 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