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Core i3-6100T vs i5-6400


Description
Both models i3-6100T and i5-6400 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 i5-6400 gets 174.1 k points.

Summarizing, the i5-6400 is 1.7 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-S
Architecture
Base frecuency
3.2 GHz
2.7 GHz
Boost frecuency
3.2 GHz
3.3 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
2/4
4/4
TDP
35 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
November 2015
September 2015
Mean monothread perf.
43.92k points
48.05k points
Mean multithread perf.
105.21k points
174.05k 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
i5-6400
Test#1 (Integers)
3.14k
3.2k (x1.02)
Test#2 (FP)
12.26k
12.81k (x1.04)
Test#3 (Generic, ZIP)
3.94k
4.18k (x1.06)
Test#1 (Memory)
2.21k
4.3k (x1.95)
TOTAL
21.55k
24.49k (x1.14)

Multithread

i3-6100T

i5-6400
Test#1 (Integers)
6.52k
11.45k (x1.76)
Test#2 (FP)
30.61k
46.67k (x1.52)
Test#3 (Generic, ZIP)
10.59k
14.69k (x1.39)
Test#1 (Memory)
2.77k
5.92k (x2.14)
TOTAL
50.49k
78.73k (x1.56)

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
i5-6400
Test#1 (Integers)
10.46k
11.82k (x1.13)
Test#2 (FP)
17.55k
18.36k (x1.05)
Test#3 (Generic, ZIP)
3.71k
4.43k (x1.19)
Test#1 (Memory)
3.07k
4.95k (x1.61)
TOTAL
34.79k
39.56k (x1.14)

Multithread

i3-6100T

i5-6400
Test#1 (Integers)
23.92k
46.04k (x1.92)
Test#2 (FP)
42.11k
69.47k (x1.65)
Test#3 (Generic, ZIP)
10.51k
16.33k (x1.55)
Test#1 (Memory)
2.57k
7.74k (x3.02)
TOTAL
79.1k
139.58k (x1.76)

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
i5-6400
Test#1 (Integers)
19.58k
21.1k (x1.08)
Test#2 (FP)
16.97k
18.28k (x1.08)
Test#3 (Generic, ZIP)
3.91k
4.22k (x1.08)
Test#1 (Memory)
3.47k
4.45k (x1.28)
TOTAL
43.92k
48.05k (x1.09)

Multithread

i3-6100T

i5-6400
Test#1 (Integers)
47.02k
80.03k (x1.7)
Test#2 (FP)
44.41k
71.1k (x1.6)
Test#3 (Generic, ZIP)
9.93k
16.19k (x1.63)
Test#1 (Memory)
3.85k
6.73k (x1.75)
TOTAL
105.21k
174.05k (x1.65)

Performance/W
i3-6100T
i5-6400
Test#1 (Integers)
1344 points/W
1231 points/W
Test#2 (FP)
1269 points/W
1094 points/W
Test#3 (Generic, ZIP)
284 points/W
249 points/W
Test#1 (Memory)
110 points/W
104 points/W
TOTAL
3006 points/W
2678 points/W

Performance/GHz
i3-6100T
i5-6400
Test#1 (Integers)
6119 points/GHz
6394 points/GHz
Test#2 (FP)
5303 points/GHz
5539 points/GHz
Test#3 (Generic, ZIP)
1221 points/GHz
1279 points/GHz
Test#1 (Memory)
1084 points/GHz
1348 points/GHz
TOTAL
13726 points/GHz
14560 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