Core i3-7100 vs i7-8700k
Description
The i3-7100 is based on Kaby Lake architecture while the i7-8700k is based on Coffee Lake.
Using the multithread performance as a reference, the i3-7100 gets a score of 124.8 k points while the i7-8700k gets 443.8 k points.
Summarizing, the i7-8700k is 3.6 times faster than the i3-7100. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i3-7100 gets a score of 124.8 k points while the i7-8700k gets 443.8 k points.
Summarizing, the i7-8700k is 3.6 times faster than the i3-7100. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906e9
906ea
Core
Kaby Lake-S
Coffee Lake-S
Base frecuency
3.9 GHz
3.7 GHz
Boost frecuency
3.9 GHz
4.7 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
2/4
6/12
TDP
51 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
6x32+6x32 kB
Cache L2
2x256 kB
6x256 kB
Cache L3
3072 kB
12288 kB
Date
January 2017
October 2017
Mean monothread perf.
57.86k points
80.6k points
Mean multithread perf.
124.8k 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
i3-7100
i7-8700k
Test#1 (Integers)
4.01k
4.13k (x1.03)
Test#2 (FP)
16.38k
16.96k (x1.04)
Test#3 (Generic, ZIP)
5.31k
5.56k (x1.05)
Test#1 (Memory)
3.98k
12.85k (x3.22)
TOTAL
29.69k
39.5k (x1.33)
Multithread
i3-7100
i7-8700k
Test#1 (Integers)
8.1k
24.01k (x2.97)
Test#2 (FP)
38.7k
108.69k (x2.81)
Test#3 (Generic, ZIP)
12.69k
36.62k (x2.89)
Test#1 (Memory)
3.76k
9.33k (x2.48)
TOTAL
63.24k
178.64k (x2.82)
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
i3-7100
i7-8700k
Test#1 (Integers)
14.04k
12.92k (x0.92)
Test#2 (FP)
20.55k
20.68k (x1.01)
Test#3 (Generic, ZIP)
5.41k
5.3k (x0.98)
Test#1 (Memory)
3.99k
12.59k (x3.15)
TOTAL
43.99k
51.48k (x1.17)
Multithread
i3-7100
i7-8700k
Test#1 (Integers)
30.09k
94.26k (x3.13)
Test#2 (FP)
47.84k
152.55k (x3.19)
Test#3 (Generic, ZIP)
13.13k
39.74k (x3.03)
Test#1 (Memory)
3.52k
8.53k (x2.42)
TOTAL
94.59k
295.07k (x3.12)
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
i3-7100
i7-8700k
Test#1 (Integers)
14.41k
16.87k (x1.17)
Test#2 (FP)
22.38k
26.12k (x1.17)
Test#3 (Generic, ZIP)
5.45k
6.33k (x1.16)
Test#1 (Memory)
4.96k
13.71k (x2.76)
TOTAL
47.21k
63.03k (x1.34)
Multithread
i3-7100
i7-8700k
Test#1 (Integers)
30.48k
105.74k (x3.47)
Test#2 (FP)
52.08k
180.52k (x3.47)
Test#3 (Generic, ZIP)
12.97k
44.99k (x3.47)
Test#1 (Memory)
4.56k
8.51k (x1.87)
TOTAL
100.1k
339.77k (x3.39)
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
i3-7100
i7-8700k
Test#1 (Integers)
25.53k
31.2k (x1.22)
Test#2 (FP)
22.98k
27.82k (x1.21)
Test#3 (Generic, ZIP)
5.37k
6.57k (x1.22)
Test#1 (Memory)
3.97k
15k (x3.78)
TOTAL
57.86k
80.6k (x1.39)
Multithread
i3-7100
i7-8700k
Test#1 (Integers)
54.73k
202.42k (x3.7)
Test#2 (FP)
53.55k
186.33k (x3.48)
Test#3 (Generic, ZIP)
12.93k
44.96k (x3.48)
Test#1 (Memory)
3.6k
10.05k (x2.8)
TOTAL
124.8k
443.77k (x3.56)
Performance/W
i3-7100
i7-8700k
Test#1 (Integers)
1073 points/W
2131 points/W
Test#2 (FP)
1050 points/W
1961 points/W
Test#3 (Generic, ZIP)
254 points/W
473 points/W
Test#1 (Memory)
71 points/W
106 points/W
TOTAL
2447 points/W
4671 points/W
Performance/GHz
i3-7100
i7-8700k
Test#1 (Integers)
6547 points/GHz
6639 points/GHz
Test#2 (FP)
5893 points/GHz
5919 points/GHz
Test#3 (Generic, ZIP)
1377 points/GHz
1397 points/GHz
Test#1 (Memory)
1019 points/GHz
3192 points/GHz
TOTAL
14836 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4