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Core i7-7820HQ vs i5-8300H


Description
The i7-7820HQ is based on Kaby Lake architecture while the i5-8300H is based on Coffee Lake.

Using the multithread performance as a reference, the i7-7820HQ gets a score of 196.6 k points while the i5-8300H gets 182.5 k points.

Summarizing, the i7-7820HQ is 1.1 times faster than the i5-8300H. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
906ea
Core
Kaby Lake-H
Coffee Lake-H
Architecture
Base frecuency
2.9 GHz
2.3 GHz
Boost frecuency
3.9 GHz
4 GHz
Socket
BGA 1440
BGA 1440
Cores/Threads
4/8
4/8
TDP
45 W
45 W
Cache L1 (d+i)
4x32+x4x32 kB
4x32+x4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
8192 kB
8192 kB
Date
January 2017
April 2018
Mean monothread perf.
55.85k points
56.72k points
Mean multithread perf.
196.55k points
182.47k 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
i5-8300H
Test#1 (Integers)
23.23k
23.6k (x1.02)
Test#2 (FP)
20.13k
21.72k (x1.08)
Test#3 (Generic, ZIP)
4.57k
4.61k (x1.01)
Test#1 (Memory)
7.92k
6.8k (x0.86)
TOTAL
55.85k
56.72k (x1.02)

Multithread

i7-7820HQ

i5-8300H
Test#1 (Integers)
85.54k
79.12k (x0.92)
Test#2 (FP)
87.07k
81.27k (x0.93)
Test#3 (Generic, ZIP)
20.37k
17.46k (x0.86)
Test#1 (Memory)
3.57k
4.62k (x1.29)
TOTAL
196.55k
182.47k (x0.93)

Performance/W
i7-7820HQ
i5-8300H
Test#1 (Integers)
1901 points/W
1758 points/W
Test#2 (FP)
1935 points/W
1806 points/W
Test#3 (Generic, ZIP)
453 points/W
388 points/W
Test#1 (Memory)
79 points/W
103 points/W
TOTAL
4368 points/W
4055 points/W

Performance/GHz
i7-7820HQ
i5-8300H
Test#1 (Integers)
5956 points/GHz
5899 points/GHz
Test#2 (FP)
5163 points/GHz
5431 points/GHz
Test#3 (Generic, ZIP)
1172 points/GHz
1152 points/GHz
Test#1 (Memory)
2030 points/GHz
1699 points/GHz
TOTAL
14321 points/GHz
14181 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