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Core i5-6400 vs i7-4765T


Description
The i5-6400 is based on Skylake architecture while the i7-4765T is based on Haswell.

Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i7-4765T gets 134.5 k points.

Summarizing, the i5-6400 is 1.3 times faster than the i7-4765T . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
506e3
306c3
Core
Skylake-S
Haswell
Architecture
Base frecuency
2.7 GHz
2 GHz
Boost frecuency
3.3 GHz
3 GHz
Socket
LGA 1151
LGA 1150
Cores/Threads
4/4
4/8
TDP
65 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
8192 kB
Date
September 2015
May 2013
Mean monothread perf.
48.05k points
31.31k points
Mean multithread perf.
174.05k points
134.53k points

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
i5-6400
i7-4765T
Test#1 (Integers)
21.1k
15.61k (x0.74)
Test#2 (FP)
18.28k
8.8k (x0.48)
Test#3 (Generic, ZIP)
4.22k
3.58k (x0.85)
Test#1 (Memory)
4.45k
3.33k (x0.75)
TOTAL
48.05k
31.31k (x0.65)

Multithread

i5-6400

i7-4765T
Test#1 (Integers)
80.03k
66k (x0.82)
Test#2 (FP)
71.1k
43.27k (x0.61)
Test#3 (Generic, ZIP)
16.19k
17.39k (x1.07)
Test#1 (Memory)
6.73k
7.88k (x1.17)
TOTAL
174.05k
134.53k (x0.77)

Performance/W
i5-6400
i7-4765T
Test#1 (Integers)
1231 points/W
1886 points/W
Test#2 (FP)
1094 points/W
1236 points/W
Test#3 (Generic, ZIP)
249 points/W
497 points/W
Test#1 (Memory)
104 points/W
225 points/W
TOTAL
2678 points/W
3844 points/W

Performance/GHz
i5-6400
i7-4765T
Test#1 (Integers)
6394 points/GHz
5203 points/GHz
Test#2 (FP)
5539 points/GHz
2932 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
1193 points/GHz
Test#1 (Memory)
1348 points/GHz
1110 points/GHz
TOTAL
14560 points/GHz
10438 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