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Core i7-7820HQ vs i7-7560U


Description
Both models i7-7820HQ and i7-7560U 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 i7-7560U gets 97.3 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
906e9
806e9
Core
Kaby Lake-H
Kaby Lake-U
Architecture
Base frecuency
2.9 GHz
2.4 GHz
Boost frecuency
3.9 GHz
3.8 GHz
Socket
BGA 1440
BGA 1356
Cores/Threads
4/8
2/4
TDP
45 W
15 W
Cache L1 (d+i)
4x32+x4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
4096 kB
Date
January 2017
January 2017
Mean monothread perf.
55.85k points
48.16k points
Mean multithread perf.
196.55k points
97.27k 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
i7-7560U
Test#1 (Integers)
23.23k
19.37k (x0.83)
Test#2 (FP)
20.13k
17.26k (x0.86)
Test#3 (Generic, ZIP)
4.57k
3.78k (x0.83)
Test#1 (Memory)
7.92k
7.75k (x0.98)
TOTAL
55.85k
48.16k (x0.86)

Multithread

i7-7820HQ

i7-7560U
Test#1 (Integers)
85.54k
39.17k (x0.46)
Test#2 (FP)
87.07k
38.24k (x0.44)
Test#3 (Generic, ZIP)
20.37k
8.9k (x0.44)
Test#1 (Memory)
3.57k
10.97k (x3.07)
TOTAL
196.55k
97.27k (x0.49)

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

Performance/GHz
i7-7820HQ
i7-7560U
Test#1 (Integers)
5956 points/GHz
5097 points/GHz
Test#2 (FP)
5163 points/GHz
4543 points/GHz
Test#3 (Generic, ZIP)
1172 points/GHz
994 points/GHz
Test#1 (Memory)
2030 points/GHz
2041 points/GHz
TOTAL
14321 points/GHz
12674 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