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Core i7-6820HQ vs i7-6560U


Description
Both models i7-6820HQ and i7-6560U are based on Skylake architecture.

Sky Lake is also known as 6th generation Core. Include Thunderbolt 3.0, SATA Express and Iris Pro graphics with DirectX 12. It uses LGA 1151 socket for mainstream models and LGA 2066 for X-Series. Sky Lake comes with AVX2 support in all mainstreams CPUs and AVX-512 in some high end models.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 206.3 k points while the i7-6560U gets 107 k points.

Summarizing, the i7-6820HQ is 1.9 times faster than the i7-6560U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
406e3
Core
Skylake-H
Skylake-U
Architecture
Base frecuency
2.7 GHz
2.2 GHz
Boost frecuency
3.6 GHz
3.2 GHz
Socket
BGA1440
BGA1356
Cores/Threads
4/8
2/4
TDP
45 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
4096 kB
Date
October 2015
September 2015

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
i7-6820HQ
i7-6560U
Test#1 (Integers)
3180
3291 (3.50%)
Test#2 (FP)
13020
13525 (3.88%)
Test#3 (Generic, ZIP)
4169
4237 (1.63%)
Test#1 (Memory)
6931
7085 (2.22%)
TOTAL
27299
28137 (3.07%)

Multithread

i7-6820HQ

i7-6560U
Test#1 (Integers)
13259
6491 (-51.05%)
Test#2 (FP)
62228
31106 (-50.01%)
Test#3 (Generic, ZIP)
20342
10252 (-49.60%)
Test#1 (Memory)
5464
6160 (12.75%)
TOTAL
101292
54009 (-46.68%)

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
i7-6820HQ
i7-6560U
Test#1 (Integers)
21147
22210 (5.03%)
Test#2 (FP)
18663
19255 (3.17%)
Test#3 (Generic, ZIP)
4359
4408 (1.11%)
Test#1 (Memory)
6240
7086 (13.56%)
TOTAL
50409
52959 (5.06%)

Multithread

i7-6820HQ

i7-6560U
Test#1 (Integers)
91901
44942 (-51.10%)
Test#2 (FP)
87330
44976 (-48.50%)
Test#3 (Generic, ZIP)
20715
10831 (-47.71%)
Test#1 (Memory)
6325
6263 (-0.99%)
TOTAL
206271
107012 (-48.12%)

Performance/W
i7-6820HQ
i7-6560U
Test#1 (Integers)
2042 points/W
2996 points/W
Test#2 (FP)
1941 points/W
2998 points/W
Test#3 (Generic, ZIP)
460 points/W
722 points/W
Test#1 (Memory)
141 points/W
418 points/W
TOTAL
4584 points/W
7134 points/W

Performance/GHz
i7-6820HQ
i7-6560U
Test#1 (Integers)
5874 points/GHz
6941 points/GHz
Test#2 (FP)
5184 points/GHz
6017 points/GHz
Test#3 (Generic, ZIP)
1211 points/GHz
1377 points/GHz
Test#1 (Memory)
1733 points/GHz
2214 points/GHz
TOTAL
14002 points/GHz
16550 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. 3.7.8