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Core i5-7400 vs i5-6500


Description
The i5-7400 is based on Kaby Lake architecture while the i5-6500 is based on Skylake.

Using the multithread performance as a reference, the i5-7400 gets a score of 173.7 k points while the i5-6500 gets 179.4 k points.

Summarizing, the i5-6500 is 1 times faster than the i5-7400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
506e3
Core
Kaby Lake-S
Skylake-S
Architecture
Base frecuency
3 GHz
3.2 GHz
Boost frecuency
3.5 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 2016
September 2015
Mean monothread perf.
52.69k points
53.7k points
Mean multithread perf.
173.7k points
179.44k 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
i5-7400
i5-6500
Test#1 (Integers)
12.72k
13.07k (x1.03)
Test#2 (FP)
19.3k
20.23k (x1.05)
Test#3 (Generic, ZIP)
4.76k
4.93k (x1.03)
Test#1 (Memory)
8.73k
9.2k (x1.05)
TOTAL
45.52k
47.43k (x1.04)

Multithread

i5-7400

i5-6500
Test#1 (Integers)
47.95k
49.62k (x1.03)
Test#2 (FP)
71.98k
74.82k (x1.04)
Test#3 (Generic, ZIP)
17.22k
18.46k (x1.07)
Test#1 (Memory)
8.03k
4.21k (x0.52)
TOTAL
145.18k
147.12k (x1.01)

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
i5-7400
i5-6500
Test#1 (Integers)
22.37k
22.89k (x1.02)
Test#2 (FP)
19.46k
19.87k (x1.02)
Test#3 (Generic, ZIP)
4.44k
4.58k (x1.03)
Test#1 (Memory)
6.41k
6.36k (x0.99)
TOTAL
52.69k
53.7k (x1.02)

Multithread

i5-7400

i5-6500
Test#1 (Integers)
79.57k
84.36k (x1.06)
Test#2 (FP)
71.41k
72.91k (x1.02)
Test#3 (Generic, ZIP)
16.44k
16.08k (x0.98)
Test#1 (Memory)
6.27k
6.1k (x0.97)
TOTAL
173.7k
179.44k (x1.03)

Performance/W
i5-7400
i5-6500
Test#1 (Integers)
1224 points/W
1298 points/W
Test#2 (FP)
1099 points/W
1122 points/W
Test#3 (Generic, ZIP)
253 points/W
247 points/W
Test#1 (Memory)
96 points/W
94 points/W
TOTAL
2672 points/W
2761 points/W

Performance/GHz
i5-7400
i5-6500
Test#1 (Integers)
6392 points/GHz
6359 points/GHz
Test#2 (FP)
5561 points/GHz
5521 points/GHz
Test#3 (Generic, ZIP)
1267 points/GHz
1271 points/GHz
Test#1 (Memory)
1832 points/GHz
1766 points/GHz
TOTAL
15053 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.


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