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Core i3-6100T vs i7-6820HQ


Description
Both models i3-6100T and i7-6820HQ 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 i3-6100T gets a score of 105.2 k points while the i7-6820HQ gets 205.9 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-S
Skylake-H
Architecture
Base frecuency
3.2 GHz
2.7 GHz
Boost frecuency
3.2 GHz
3.6 GHz
Socket
LGA 1151
BGA1440
Cores/Threads
2/4
4/8
TDP
35 W
45 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
8192 kB
Date
November 2015
October 2015
Mean monothread perf.
43.92k points
50.1k points
Mean multithread perf.
105.21k points
205.89k points

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
i3-6100T
i7-6820HQ
Test#1 (Integers)
3.14k
3.18k (x1.01)
Test#2 (FP)
12.26k
13.02k (x1.06)
Test#3 (Generic, ZIP)
3.94k
4.17k (x1.06)
Test#1 (Memory)
2.21k
6.93k (x3.14)
TOTAL
21.55k
27.3k (x1.27)

Multithread

i3-6100T

i7-6820HQ
Test#1 (Integers)
6.52k
13.26k (x2.03)
Test#2 (FP)
30.61k
62.23k (x2.03)
Test#3 (Generic, ZIP)
10.59k
20.34k (x1.92)
Test#1 (Memory)
2.77k
5.46k (x1.97)
TOTAL
50.49k
101.29k (x2.01)

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
i3-6100T
i7-6820HQ
Test#1 (Integers)
10.46k
11.78k (x1.13)
Test#2 (FP)
17.55k
18.06k (x1.03)
Test#3 (Generic, ZIP)
3.71k
4.48k (x1.21)
Test#1 (Memory)
3.07k
7.12k (x2.32)
TOTAL
34.79k
41.44k (x1.19)

Multithread

i3-6100T

i7-6820HQ
Test#1 (Integers)
23.92k
49.46k (x2.07)
Test#2 (FP)
42.11k
84.8k (x2.01)
Test#3 (Generic, ZIP)
10.51k
20.7k (x1.97)
Test#1 (Memory)
2.57k
4.77k (x1.86)
TOTAL
79.1k
159.73k (x2.02)

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
i3-6100T
i7-6820HQ
Test#1 (Integers)
19.58k
20.99k (x1.07)
Test#2 (FP)
16.97k
18.63k (x1.1)
Test#3 (Generic, ZIP)
3.91k
4.33k (x1.11)
Test#1 (Memory)
3.47k
6.15k (x1.77)
TOTAL
43.92k
50.1k (x1.14)

Multithread

i3-6100T

i7-6820HQ
Test#1 (Integers)
47.02k
91.8k (x1.95)
Test#2 (FP)
44.41k
87.24k (x1.96)
Test#3 (Generic, ZIP)
9.93k
20.55k (x2.07)
Test#1 (Memory)
3.85k
6.3k (x1.64)
TOTAL
105.21k
205.89k (x1.96)

Performance/W
i3-6100T
i7-6820HQ
Test#1 (Integers)
1344 points/W
2040 points/W
Test#2 (FP)
1269 points/W
1939 points/W
Test#3 (Generic, ZIP)
284 points/W
457 points/W
Test#1 (Memory)
110 points/W
140 points/W
TOTAL
3006 points/W
4575 points/W

Performance/GHz
i3-6100T
i7-6820HQ
Test#1 (Integers)
6119 points/GHz
5831 points/GHz
Test#2 (FP)
5303 points/GHz
5174 points/GHz
Test#3 (Generic, ZIP)
1221 points/GHz
1204 points/GHz
Test#1 (Memory)
1084 points/GHz
1708 points/GHz
TOTAL
13726 points/GHz
13917 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