Core i7-7820HQ vs i3-7100
Description
Both models i7-7820HQ and i3-7100 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 i7-7820HQ gets a score of 196.6 k points while the i3-7100 gets 124.8 k points.
Summarizing, the i7-7820HQ is 1.6 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 i7-7820HQ gets a score of 196.6 k points while the i3-7100 gets 124.8 k points.
Summarizing, the i7-7820HQ is 1.6 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
906e9
Core
Kaby Lake-H
Kaby Lake-S
Base frecuency
2.9 GHz
3.9 GHz
Boost frecuency
3.9 GHz
3.9 GHz
Socket
BGA 1440
LGA 1151
Cores/Threads
4/8
2/4
TDP
45 W
51 W
Cache L1 (d+i)
4x32+x4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
3072 kB
Date
January 2017
January 2017
Mean monothread perf.
55.85k points
57.86k points
Mean multithread perf.
196.55k points
124.8k 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
i7-7820HQ
i3-7100
Test#1 (Integers)
23.23k
25.53k (x1.1)
Test#2 (FP)
20.13k
22.98k (x1.14)
Test#3 (Generic, ZIP)
4.57k
5.37k (x1.17)
Test#1 (Memory)
7.92k
3.97k (x0.5)
TOTAL
55.85k
57.86k (x1.04)
Multithread
i7-7820HQ
i3-7100
Test#1 (Integers)
85.54k
54.73k (x0.64)
Test#2 (FP)
87.07k
53.55k (x0.62)
Test#3 (Generic, ZIP)
20.37k
12.93k (x0.63)
Test#1 (Memory)
3.57k
3.6k (x1.01)
TOTAL
196.55k
124.8k (x0.63)
Performance/W
i7-7820HQ
i3-7100
Test#1 (Integers)
1901 points/W
1073 points/W
Test#2 (FP)
1935 points/W
1050 points/W
Test#3 (Generic, ZIP)
453 points/W
254 points/W
Test#1 (Memory)
79 points/W
71 points/W
TOTAL
4368 points/W
2447 points/W
Performance/GHz
i7-7820HQ
i3-7100
Test#1 (Integers)
5956 points/GHz
6547 points/GHz
Test#2 (FP)
5163 points/GHz
5893 points/GHz
Test#3 (Generic, ZIP)
1172 points/GHz
1377 points/GHz
Test#1 (Memory)
2030 points/GHz
1019 points/GHz
TOTAL
14321 points/GHz
14836 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