Core i3-7100 vs i7-7700K
Description
Both models i3-7100 and i7-7700K are based on Kaby Lake architecture.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i3-7100 gets a score of 124.8 k points while the i7-7700K gets 289.8 k points.
Summarizing, the i7-7700K is 2.3 times faster than the i3-7100. To get a proper comparison between both models, take a look to the data shown below.
The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.
Using the multithread performance as a reference, the i3-7100 gets a score of 124.8 k points while the i7-7700K gets 289.8 k points.
Summarizing, the i7-7700K is 2.3 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
906e9
Core
Kaby Lake-S
Kaby Lake-S
Base frecuency
3.9 GHz
4.2 GHz
Boost frecuency
3.9 GHz
4.5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
2/4
4/8
TDP
51 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
2x256 kB
256 kB
Cache L3
3072 kB
8192 kB
Date
January 2017
September 2016
Mean monothread perf.
57.86k points
76.9k points
Mean multithread perf.
124.8k points
289.82k 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
i7-7700K
Test#1 (Integers)
4.01k
4.63k (x1.15)
Test#2 (FP)
16.38k
18.92k (x1.16)
Test#3 (Generic, ZIP)
5.31k
6.22k (x1.17)
Test#1 (Memory)
3.98k
13.92k (x3.49)
TOTAL
29.69k
43.7k (x1.47)
Multithread
i3-7100
i7-7700K
Test#1 (Integers)
8.1k
18.53k (x2.29)
Test#2 (FP)
38.7k
86.49k (x2.23)
Test#3 (Generic, ZIP)
12.69k
28.78k (x2.27)
Test#1 (Memory)
3.76k
9.67k (x2.58)
TOTAL
63.24k
143.47k (x2.27)
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
i7-7700K
Test#1 (Integers)
14.41k
17.55k (x1.22)
Test#2 (FP)
22.38k
27.82k (x1.24)
Test#3 (Generic, ZIP)
5.45k
6.8k (x1.25)
Test#1 (Memory)
4.96k
14.83k (x2.99)
TOTAL
47.21k
67k (x1.42)
Multithread
i3-7100
i7-7700K
Test#1 (Integers)
30.48k
68.4k (x2.24)
Test#2 (FP)
52.08k
118.8k (x2.28)
Test#3 (Generic, ZIP)
12.97k
33.34k (x2.57)
Test#1 (Memory)
4.56k
17.43k (x3.82)
TOTAL
100.1k
237.97k (x2.38)
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
i7-7700K
Test#1 (Integers)
25.53k
30.44k (x1.19)
Test#2 (FP)
22.98k
26.91k (x1.17)
Test#3 (Generic, ZIP)
5.37k
6.25k (x1.16)
Test#1 (Memory)
3.97k
13.3k (x3.35)
TOTAL
57.86k
76.9k (x1.33)
Multithread
i3-7100
i7-7700K
Test#1 (Integers)
54.73k
127.73k (x2.33)
Test#2 (FP)
53.55k
123.68k (x2.31)
Test#3 (Generic, ZIP)
12.93k
29.34k (x2.27)
Test#1 (Memory)
3.6k
9.08k (x2.52)
TOTAL
124.8k
289.82k (x2.32)
Performance/W
i3-7100
i7-7700K
Test#1 (Integers)
1073 points/W
1345 points/W
Test#2 (FP)
1050 points/W
1302 points/W
Test#3 (Generic, ZIP)
254 points/W
309 points/W
Test#1 (Memory)
71 points/W
96 points/W
TOTAL
2447 points/W
3051 points/W
Performance/GHz
i3-7100
i7-7700K
Test#1 (Integers)
6547 points/GHz
6765 points/GHz
Test#2 (FP)
5893 points/GHz
5981 points/GHz
Test#3 (Generic, ZIP)
1377 points/GHz
1388 points/GHz
Test#1 (Memory)
1019 points/GHz
2955 points/GHz
TOTAL
14836 points/GHz
17089 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