Core i5-6400 vs i5-6500
Description
Both models i5-6400 and i5-6500 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 i5-6400 gets a score of 174.1 k points while the i5-6500 gets 179.4 k points.
Summarizing, the i5-6500 is 1 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.
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 i5-6400 gets a score of 174.1 k points while the i5-6500 gets 179.4 k points.
Summarizing, the i5-6500 is 1 times faster than the i5-6400 . 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
Base frecuency
2.7 GHz
3.2 GHz
Boost frecuency
3.3 GHz
3.6 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/4
4/4
TDP
65 W
65 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
September 2015
Mean monothread perf.
48.05k points
53.7k points
Mean multithread perf.
174.05k points
179.44k 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
i5-6400
i5-6500
Test#1 (Integers)
3.2k
3.46k (x1.08)
Test#2 (FP)
12.81k
14.61k (x1.14)
Test#3 (Generic, ZIP)
4.18k
4.66k (x1.11)
Test#1 (Memory)
4.3k
6.99k (x1.62)
TOTAL
24.49k
29.71k (x1.21)
Multithread
i5-6400
i5-6500
Test#1 (Integers)
11.45k
12.52k (x1.09)
Test#2 (FP)
46.67k
51.13k (x1.1)
Test#3 (Generic, ZIP)
14.69k
17.41k (x1.19)
Test#1 (Memory)
5.92k
3.9k (x0.66)
TOTAL
78.73k
84.96k (x1.08)
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
i5-6500
Test#1 (Integers)
11.82k
13.07k (x1.11)
Test#2 (FP)
18.36k
20.23k (x1.1)
Test#3 (Generic, ZIP)
4.43k
4.93k (x1.11)
Test#1 (Memory)
4.95k
9.2k (x1.86)
TOTAL
39.56k
47.43k (x1.2)
Multithread
i5-6400
i5-6500
Test#1 (Integers)
46.04k
49.62k (x1.08)
Test#2 (FP)
69.47k
74.82k (x1.08)
Test#3 (Generic, ZIP)
16.33k
18.46k (x1.13)
Test#1 (Memory)
7.74k
4.21k (x0.54)
TOTAL
139.58k
147.12k (x1.05)
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
i5-6500
Test#1 (Integers)
21.1k
22.89k (x1.08)
Test#2 (FP)
18.28k
19.87k (x1.09)
Test#3 (Generic, ZIP)
4.22k
4.58k (x1.08)
Test#1 (Memory)
4.45k
6.36k (x1.43)
TOTAL
48.05k
53.7k (x1.12)
Multithread
i5-6400
i5-6500
Test#1 (Integers)
80.03k
84.36k (x1.05)
Test#2 (FP)
71.1k
72.91k (x1.03)
Test#3 (Generic, ZIP)
16.19k
16.08k (x0.99)
Test#1 (Memory)
6.73k
6.1k (x0.91)
TOTAL
174.05k
179.44k (x1.03)
Performance/W
i5-6400
i5-6500
Test#1 (Integers)
1231 points/W
1298 points/W
Test#2 (FP)
1094 points/W
1122 points/W
Test#3 (Generic, ZIP)
249 points/W
247 points/W
Test#1 (Memory)
104 points/W
94 points/W
TOTAL
2678 points/W
2761 points/W
Performance/GHz
i5-6400
i5-6500
Test#1 (Integers)
6394 points/GHz
6359 points/GHz
Test#2 (FP)
5539 points/GHz
5521 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
1271 points/GHz
Test#1 (Memory)
1348 points/GHz
1766 points/GHz
TOTAL
14560 points/GHz
14917 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4