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Core i7-6820HQ vs i3-6100T


Description
Both models i7-6820HQ and i3-6100T 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 i3-6100T gets 104.4 k points.

Summarizing, the i7-6820HQ is 2 times faster than the i3-6100T. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
506e3
Core
Skylake-H
Skylake-S
Architecture
Base frecuency
2.7 GHz
3.2 GHz
Boost frecuency
3.6 GHz
3.2 GHz
Socket
BGA1440
LGA 1151
Cores/Threads
4/8
2/4
TDP
45 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
8192 kB
3072 kB
Date
October 2015
November 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
i3-6100T
Test#1 (Integers)
3180
3136 (-1.36%)
Test#2 (FP)
13020
12264 (-5.81%)
Test#3 (Generic, ZIP)
4169
3938 (-5.53%)
Test#1 (Memory)
6931
2208 (-68.14%)
TOTAL
27299
21546 (-21.07%)

Multithread

i7-6820HQ

i3-6100T
Test#1 (Integers)
13259
6516 (-50.86%)
Test#2 (FP)
62228
30610 (-50.81%)
Test#3 (Generic, ZIP)
20342
10586 (-47.96%)
Test#1 (Memory)
5464
2774 (-49.23%)
TOTAL
101292
50486 (-50.16%)

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
i3-6100T
Test#1 (Integers)
11784
10459 (-11.24%)
Test#2 (FP)
18056
17552 (-2.79%)
Test#3 (Generic, ZIP)
4479
3715 (-17.07%)
Test#1 (Memory)
7117
3065 (-56.93%)
TOTAL
41437
34791 (-16.04%)

Multithread

i7-6820HQ

i3-6100T
Test#1 (Integers)
49458
23920 (-51.64%)
Test#2 (FP)
84798
42107 (-50.34%)
Test#3 (Generic, ZIP)
20703
10509 (-49.24%)
Test#1 (Memory)
4770
2567 (-46.19%)
TOTAL
159730
79103 (-50.48%)

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
i3-6100T
Test#1 (Integers)
21147
18498 (-12.53%)
Test#2 (FP)
18663
16513 (-11.52%)
Test#3 (Generic, ZIP)
4359
3702 (-15.08%)
Test#1 (Memory)
6240
2472 (-60.38%)
TOTAL
50409
41186 (-18.30%)

Multithread

i7-6820HQ

i3-6100T
Test#1 (Integers)
91901
47503 (-48.31%)
Test#2 (FP)
87330
43485 (-50.21%)
Test#3 (Generic, ZIP)
20715
10635 (-48.66%)
Test#1 (Memory)
6325
2780 (-56.05%)
TOTAL
206271
104404 (-49.39%)

Performance/W
i7-6820HQ
i3-6100T
Test#1 (Integers)
2042 points/W
1357 points/W
Test#2 (FP)
1941 points/W
1242 points/W
Test#3 (Generic, ZIP)
460 points/W
304 points/W
Test#1 (Memory)
141 points/W
79 points/W
TOTAL
4584 points/W
2983 points/W

Performance/GHz
i7-6820HQ
i3-6100T
Test#1 (Integers)
5874 points/GHz
5781 points/GHz
Test#2 (FP)
5184 points/GHz
5160 points/GHz
Test#3 (Generic, ZIP)
1211 points/GHz
1157 points/GHz
Test#1 (Memory)
1733 points/GHz
773 points/GHz
TOTAL
14002 points/GHz
12871 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