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Core i5-5300U vs i7-7820HQ


Description
The i5-5300U is based on Broadwell architecture while the i7-7820HQ is based on Kaby Lake.

Using the multithread performance as a reference, the i5-5300U gets a score of 76.7 k points while the i7-7820HQ gets 196.6 k points.

Summarizing, the i7-7820HQ is 2.6 times faster than the i5-5300U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
306d4
906e9
Core
Broadwell-U
Kaby Lake-H
Architecture
Base frecuency
2.3 GHz
2.9 GHz
Boost frecuency
2.9 GHz
3.9 GHz
Socket
BGA 1168
BGA 1440
Cores/Threads
2 /4
4/8
TDP
15 W
45 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+x4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
3072 kB
8192 kB
Date
March 2015
January 2017
Mean monothread perf.
38.29k points
55.85k points
Mean multithread perf.
76.71k points
196.55k 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
i5-5300U
i7-7820HQ
Test#1 (Integers)
17.2k
23.23k (x1.35)
Test#2 (FP)
14.53k
20.13k (x1.39)
Test#3 (Generic, ZIP)
3.44k
4.57k (x1.33)
Test#1 (Memory)
3.12k
7.92k (x2.54)
TOTAL
38.29k
55.85k (x1.46)

Multithread

i5-5300U

i7-7820HQ
Test#1 (Integers)
28.7k
85.54k (x2.98)
Test#2 (FP)
35.19k
87.07k (x2.47)
Test#3 (Generic, ZIP)
9.24k
20.37k (x2.2)
Test#1 (Memory)
3.57k
3.57k (x1)
TOTAL
76.71k
196.55k (x2.56)

Performance/W
i5-5300U
i7-7820HQ
Test#1 (Integers)
1914 points/W
1901 points/W
Test#2 (FP)
2346 points/W
1935 points/W
Test#3 (Generic, ZIP)
616 points/W
453 points/W
Test#1 (Memory)
238 points/W
79 points/W
TOTAL
5114 points/W
4368 points/W

Performance/GHz
i5-5300U
i7-7820HQ
Test#1 (Integers)
5931 points/GHz
5956 points/GHz
Test#2 (FP)
5011 points/GHz
5163 points/GHz
Test#3 (Generic, ZIP)
1186 points/GHz
1172 points/GHz
Test#1 (Memory)
1076 points/GHz
2030 points/GHz
TOTAL
13204 points/GHz
14321 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