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Core i5-7500 vs i5-6400


Description
The i5-7500 is based on Kaby Lake architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the i5-7500 gets a score of 191.7 k points while the i5-6400 gets 174.1 k points.

Summarizing, the i5-7500 is 1.1 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
506e3
Core
Kaby Lake-S
Skylake-S
Architecture
Base frecuency
3.4 GHz
2.7 GHz
Boost frecuency
3.8 GHz
3.3 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/4
4/4
TDP
65 W
65 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
4x256 kB
Cache L3
6144 kB
6144 kB
Date
September 2016
September 2015
Mean monothread perf.
61.51k points
48.05k points
Mean multithread perf.
191.71k 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
i5-7500
i5-6400
Test#1 (Integers)
3.87k
3.2k (x0.83)
Test#2 (FP)
16.09k
12.81k (x0.8)
Test#3 (Generic, ZIP)
5.11k
4.18k (x0.82)
Test#1 (Memory)
7.97k
4.3k (x0.54)
TOTAL
33.04k
24.49k (x0.74)

Multithread

i5-7500

i5-6400
Test#1 (Integers)
14.81k
11.45k (x0.77)
Test#2 (FP)
61.51k
46.67k (x0.76)
Test#3 (Generic, ZIP)
19.59k
14.69k (x0.75)
Test#1 (Memory)
3.68k
5.92k (x1.61)
TOTAL
99.59k
78.73k (x0.79)

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
i5-7500
i5-6400
Test#1 (Integers)
14.09k
11.56k (x0.82)
Test#2 (FP)
19.8k
16.53k (x0.83)
Test#3 (Generic, ZIP)
5.34k
4.3k (x0.8)
Test#1 (Memory)
8.45k
3.97k (x0.47)
TOTAL
47.67k
36.36k (x0.76)

Multithread

i5-7500

i5-6400
Test#1 (Integers)
53.99k
43.01k (x0.8)
Test#2 (FP)
77.43k
64.46k (x0.83)
Test#3 (Generic, ZIP)
20.81k
16.14k (x0.78)
Test#1 (Memory)
2.53k
5.91k (x2.33)
TOTAL
154.77k
129.51k (x0.84)

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
i5-7500
i5-6400
Test#1 (Integers)
14.03k
11.82k (x0.84)
Test#2 (FP)
21.07k
18.36k (x0.87)
Test#3 (Generic, ZIP)
5.15k
4.43k (x0.86)
Test#1 (Memory)
7.77k
4.95k (x0.64)
TOTAL
48.03k
39.56k (x0.82)

Multithread

i5-7500

i5-6400
Test#1 (Integers)
50.12k
46.04k (x0.92)
Test#2 (FP)
74.8k
69.47k (x0.93)
Test#3 (Generic, ZIP)
19.69k
16.33k (x0.83)
Test#1 (Memory)
5.19k
7.74k (x1.49)
TOTAL
149.79k
139.58k (x0.93)

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
i5-7500
i5-6400
Test#1 (Integers)
25.59k
21.1k (x0.82)
Test#2 (FP)
22.57k
18.28k (x0.81)
Test#3 (Generic, ZIP)
5.27k
4.22k (x0.8)
Test#1 (Memory)
8.08k
4.45k (x0.55)
TOTAL
61.51k
48.05k (x0.78)

Multithread

i5-7500

i5-6400
Test#1 (Integers)
88.3k
80.03k (x0.91)
Test#2 (FP)
78.59k
71.1k (x0.9)
Test#3 (Generic, ZIP)
19.72k
16.19k (x0.82)
Test#1 (Memory)
5.1k
6.73k (x1.32)
TOTAL
191.71k
174.05k (x0.91)

Performance/W
i5-7500
i5-6400
Test#1 (Integers)
1358 points/W
1231 points/W
Test#2 (FP)
1209 points/W
1094 points/W
Test#3 (Generic, ZIP)
303 points/W
249 points/W
Test#1 (Memory)
79 points/W
104 points/W
TOTAL
2949 points/W
2678 points/W

Performance/GHz
i5-7500
i5-6400
Test#1 (Integers)
6734 points/GHz
6394 points/GHz
Test#2 (FP)
5939 points/GHz
5539 points/GHz
Test#3 (Generic, ZIP)
1387 points/GHz
1279 points/GHz
Test#1 (Memory)
2125 points/GHz
1348 points/GHz
TOTAL
16186 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