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Core i7-6820HQ vs i7-5500U


Description
The i7-6820HQ is based on Skylake architecture while the i7-5500U is based on Broadwell.

Using the multithread performance as a reference, the i7-6820HQ gets a score of 206.3 k points while the i7-5500U gets 82.9 k points.

Summarizing, the i7-6820HQ is 2.5 times faster than the i7-5500U . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306d4
Core
Skylake-H
Broadwell-U
Architecture
Base frecuency
2.7 GHz
2.4 GHz
Boost frecuency
3.6 GHz
3 GHz
Socket
BGA1440
Cores/Threads
4/8
2 /2
TDP
45 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
8192 kB
4096 kB
Date
October 2015
March 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
i7-5500U
Test#1 (Integers)
3180
3312 (4.16%)
Test#2 (FP)
13020
11613 (-10.81%)
Test#3 (Generic, ZIP)
4169
3937 (-5.56%)
Test#1 (Memory)
6931
3241 (-53.24%)
TOTAL
27299
22103 (-19.04%)

Multithread

i7-6820HQ

i7-5500U
Test#1 (Integers)
13259
5965 (-55.01%)
Test#2 (FP)
62228
25541 (-58.95%)
Test#3 (Generic, ZIP)
20342
8805 (-56.72%)
Test#1 (Memory)
5464
3356 (-38.58%)
TOTAL
101292
43667 (-56.89%)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i7-6820HQ
i7-5500U
Test#1 (Integers)
11536
10587 (-8.23%)
Test#2 (FP)
16687
13716 (-17.81%)
Test#3 (Generic, ZIP)
4514
4223 (-6.46%)
Test#1 (Memory)
7273
3638 (-49.98%)
TOTAL
40011
32163 (-19.61%)

Multithread

i7-6820HQ

i7-5500U
Test#1 (Integers)
48501
20801 (-57.11%)
Test#2 (FP)
77016
30439 (-60.48%)
Test#3 (Generic, ZIP)
21301
9103 (-57.26%)
Test#1 (Memory)
5242
3352 (-36.06%)
TOTAL
152060
63694 (-58.11%)

AVX optimized benchmark
The benchmark in mode II (AVX) is optimized to used 256 bits registers beside the first version of the Advanced Vector Extensions (AVX). The first AVX compatible CPU was released in 2011.
Monothread
i7-6820HQ
i7-5500U
Test#1 (Integers)
11784
10369 (-12.01%)
Test#2 (FP)
18056
14254 (-21.05%)
Test#3 (Generic, ZIP)
4479
4073 (-9.07%)
Test#1 (Memory)
7117
3117 (-56.21%)
TOTAL
41437
31813 (-23.22%)

Multithread

i7-6820HQ

i7-5500U
Test#1 (Integers)
49458
20929 (-57.68%)
Test#2 (FP)
84798
33871 (-60.06%)
Test#3 (Generic, ZIP)
20703
8985 (-56.60%)
Test#1 (Memory)
4770
3349 (-29.79%)
TOTAL
159730
67135 (-57.97%)

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
i7-5500U
Test#1 (Integers)
21147
17760 (-16.01%)
Test#2 (FP)
18663
14899 (-20.17%)
Test#3 (Generic, ZIP)
4359
4169 (-4.37%)
Test#1 (Memory)
6240
3580 (-42.63%)
TOTAL
50409
40408 (-19.84%)

Multithread

i7-6820HQ

i7-5500U
Test#1 (Integers)
91901
34902 (-62.02%)
Test#2 (FP)
87330
35067 (-59.84%)
Test#3 (Generic, ZIP)
20715
9278 (-55.21%)
Test#1 (Memory)
6325
3644 (-42.39%)
TOTAL
206271
82892 (-59.81%)

Performance/W
i7-6820HQ
i7-5500U
Test#1 (Integers)
2042 points/W
2327 points/W
Test#2 (FP)
1941 points/W
2338 points/W
Test#3 (Generic, ZIP)
460 points/W
619 points/W
Test#1 (Memory)
141 points/W
243 points/W
TOTAL
4584 points/W
5526 points/W

Performance/GHz
i7-6820HQ
i7-5500U
Test#1 (Integers)
5874 points/GHz
5920 points/GHz
Test#2 (FP)
5184 points/GHz
4966 points/GHz
Test#3 (Generic, ZIP)
1211 points/GHz
1390 points/GHz
Test#1 (Memory)
1733 points/GHz
1193 points/GHz
TOTAL
14002 points/GHz
13469 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