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Core i7-7560U vs i7-7820HQ


Description
Both models i7-7560U and i7-7820HQ 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 i7-7560U gets a score of 97.3 k points while the i7-7820HQ gets 196.6 k points.

Summarizing, the i7-7820HQ is 2 times faster than the i7-7560U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806e9
906e9
Core
Kaby Lake-U
Kaby Lake-H
Architecture
Base frecuency
2.4 GHz
2.9 GHz
Boost frecuency
3.8 GHz
3.9 GHz
Socket
BGA 1356
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
2x256 kB
4x256 kB
Cache L3
4096 kB
8192 kB
Date
January 2017
January 2017
Mean monothread perf.
48.16k points
55.85k points
Mean multithread perf.
97.27k 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
i7-7560U
i7-7820HQ
Test#1 (Integers)
19.37k
23.23k (x1.2)
Test#2 (FP)
17.26k
20.13k (x1.17)
Test#3 (Generic, ZIP)
3.78k
4.57k (x1.21)
Test#1 (Memory)
7.75k
7.92k (x1.02)
TOTAL
48.16k
55.85k (x1.16)

Multithread

i7-7560U

i7-7820HQ
Test#1 (Integers)
39.17k
85.54k (x2.18)
Test#2 (FP)
38.24k
87.07k (x2.28)
Test#3 (Generic, ZIP)
8.9k
20.37k (x2.29)
Test#1 (Memory)
10.97k
3.57k (x0.33)
TOTAL
97.27k
196.55k (x2.02)

Performance/W
i7-7560U
i7-7820HQ
Test#1 (Integers)
2611 points/W
1901 points/W
Test#2 (FP)
2549 points/W
1935 points/W
Test#3 (Generic, ZIP)
593 points/W
453 points/W
Test#1 (Memory)
731 points/W
79 points/W
TOTAL
6485 points/W
4368 points/W

Performance/GHz
i7-7560U
i7-7820HQ
Test#1 (Integers)
5097 points/GHz
5956 points/GHz
Test#2 (FP)
4543 points/GHz
5163 points/GHz
Test#3 (Generic, ZIP)
994 points/GHz
1172 points/GHz
Test#1 (Memory)
2041 points/GHz
2030 points/GHz
TOTAL
12674 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