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Core i5-6400 vs i5-4460


Description
The i5-6400 is based on Skylake architecture while the i5-4460 is based on Haswell.

Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i5-4460 gets 140.3 k points.

Summarizing, the i5-6400 is 1.2 times faster than the i5-4460. 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
3.2 GHz
Boost frecuency
3.3 GHz
3.4 GHz
Socket
LGA 1151
LGA1150
Cores/Threads
4/4
4/4
TDP
65 W
84 W
Cache L1 (d+i)
4x32+4x32 kB
4x32+4x32 kB
Cache L2
4x256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
September 2015
May 2014
Mean monothread perf.
48.05k points
39.53k points
Mean multithread perf.
174.05k points
140.27k points

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
i5-6400
i5-4460
Test#1 (Integers)
11.82k
12.12k (x1.02)
Test#2 (FP)
18.36k
10.69k (x0.58)
Test#3 (Generic, ZIP)
4.43k
4.71k (x1.06)
Test#1 (Memory)
4.95k
3.87k (x0.78)
TOTAL
39.56k
31.39k (x0.79)

Multithread

i5-6400

i5-4460
Test#1 (Integers)
46.04k
45.75k (x0.99)
Test#2 (FP)
69.47k
42.71k (x0.61)
Test#3 (Generic, ZIP)
16.33k
17.81k (x1.09)
Test#1 (Memory)
7.74k
6.08k (x0.79)
TOTAL
139.58k
112.35k (x0.8)

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
i5-4460
Test#1 (Integers)
21.1k
19.84k (x0.94)
Test#2 (FP)
18.28k
10.86k (x0.59)
Test#3 (Generic, ZIP)
4.22k
4.46k (x1.06)
Test#1 (Memory)
4.45k
4.39k (x0.99)
TOTAL
48.05k
39.53k (x0.82)

Multithread

i5-6400

i5-4460
Test#1 (Integers)
80.03k
75.08k (x0.94)
Test#2 (FP)
71.1k
42.36k (x0.6)
Test#3 (Generic, ZIP)
16.19k
16.38k (x1.01)
Test#1 (Memory)
6.73k
6.45k (x0.96)
TOTAL
174.05k
140.27k (x0.81)

Performance/W
i5-6400
i5-4460
Test#1 (Integers)
1231 points/W
894 points/W
Test#2 (FP)
1094 points/W
504 points/W
Test#3 (Generic, ZIP)
249 points/W
195 points/W
Test#1 (Memory)
104 points/W
77 points/W
TOTAL
2678 points/W
1670 points/W

Performance/GHz
i5-6400
i5-4460
Test#1 (Integers)
6394 points/GHz
5834 points/GHz
Test#2 (FP)
5539 points/GHz
3193 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
1311 points/GHz
Test#1 (Memory)
1348 points/GHz
1290 points/GHz
TOTAL
14560 points/GHz
11628 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