| | | | | | |

Core i3-7100 vs i7-8665U


Description
The i3-7100 is based on Kaby Lake architecture while the i7-8665U is based on Whiskey Lake.

Using the multithread performance as a reference, the i3-7100 gets a score of 124.8 k points while the i7-8665U gets 123.1 k points.

Summarizing, the i3-7100 is 1 times faster than the i7-8665U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
806ec
Core
Kaby Lake-S
Whiskey Lake-U
Architecture
Base frecuency
3.9 GHz
1.9 GHz
Boost frecuency
3.9 GHz
4.8 GHz
Socket
LGA 1151
BGA 1528
Cores/Threads
2/4
4/8
TDP
51 W
15 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
8192 kB
Date
January 2017
April 2019
Mean monothread perf.
57.86k points
41.66k points
Mean multithread perf.
124.8k points
123.09k points

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
i7-8665U
Test#1 (Integers)
25.53k
16.92k (x0.66)
Test#2 (FP)
22.98k
15.41k (x0.67)
Test#3 (Generic, ZIP)
5.37k
3.33k (x0.62)
Test#1 (Memory)
3.97k
6k (x1.51)
TOTAL
57.86k
41.66k (x0.72)

Multithread

i3-7100

i7-8665U
Test#1 (Integers)
54.73k
53.19k (x0.97)
Test#2 (FP)
53.55k
52.4k (x0.98)
Test#3 (Generic, ZIP)
12.93k
11.67k (x0.9)
Test#1 (Memory)
3.6k
5.83k (x1.62)
TOTAL
124.8k
123.09k (x0.99)

Performance/W
i3-7100
i7-8665U
Test#1 (Integers)
1073 points/W
3546 points/W
Test#2 (FP)
1050 points/W
3493 points/W
Test#3 (Generic, ZIP)
254 points/W
778 points/W
Test#1 (Memory)
71 points/W
389 points/W
TOTAL
2447 points/W
8206 points/W

Performance/GHz
i3-7100
i7-8665U
Test#1 (Integers)
6547 points/GHz
3525 points/GHz
Test#2 (FP)
5893 points/GHz
3210 points/GHz
Test#3 (Generic, ZIP)
1377 points/GHz
694 points/GHz
Test#1 (Memory)
1019 points/GHz
1251 points/GHz
TOTAL
14836 points/GHz
8680 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