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Core i5-7400 vs i5-7500


Description
Both models i5-7400 and i5-7500 are based on Kaby Lake architecture.

The first Kaby Lake CPU was released in August 2016. It uses a 14 nm process and was the first architecture in breaking the previous tick-tock model. Actually, it is not that different from the preceding Skylake: it has 64kB of L1 cache and 256kB L2 cache per core.

Using the multithread performance as a reference, the i5-7400 gets a score of 173.7 k points while the i5-7500 gets 191.7 k points.

Summarizing, the i5-7500 is 1.1 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
906e9
Core
Kaby Lake-S
Kaby Lake-S
Architecture
Base frecuency
3 GHz
3.4 GHz
Boost frecuency
3.5 GHz
3.8 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/4
4/4
TDP
65 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
6144 kB
Date
September 2016
September 2016
Mean monothread perf.
52.69k points
61.51k points
Mean multithread perf.
173.7k points
191.71k 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
i5-7500
Test#1 (Integers)
12.72k
14.03k (x1.1)
Test#2 (FP)
19.3k
21.07k (x1.09)
Test#3 (Generic, ZIP)
4.76k
5.15k (x1.08)
Test#1 (Memory)
8.73k
7.77k (x0.89)
TOTAL
45.52k
48.03k (x1.06)

Multithread

i5-7400

i5-7500
Test#1 (Integers)
47.95k
50.12k (x1.05)
Test#2 (FP)
71.98k
74.8k (x1.04)
Test#3 (Generic, ZIP)
17.22k
19.69k (x1.14)
Test#1 (Memory)
8.03k
5.19k (x0.65)
TOTAL
145.18k
149.79k (x1.03)

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
i5-7500
Test#1 (Integers)
22.37k
25.59k (x1.14)
Test#2 (FP)
19.46k
22.57k (x1.16)
Test#3 (Generic, ZIP)
4.44k
5.27k (x1.19)
Test#1 (Memory)
6.41k
8.08k (x1.26)
TOTAL
52.69k
61.51k (x1.17)

Multithread

i5-7400

i5-7500
Test#1 (Integers)
79.57k
88.3k (x1.11)
Test#2 (FP)
71.41k
78.59k (x1.1)
Test#3 (Generic, ZIP)
16.44k
19.72k (x1.2)
Test#1 (Memory)
6.27k
5.1k (x0.81)
TOTAL
173.7k
191.71k (x1.1)

Performance/W
i5-7400
i5-7500
Test#1 (Integers)
1224 points/W
1358 points/W
Test#2 (FP)
1099 points/W
1209 points/W
Test#3 (Generic, ZIP)
253 points/W
303 points/W
Test#1 (Memory)
96 points/W
79 points/W
TOTAL
2672 points/W
2949 points/W

Performance/GHz
i5-7400
i5-7500
Test#1 (Integers)
6392 points/GHz
6734 points/GHz
Test#2 (FP)
5561 points/GHz
5939 points/GHz
Test#3 (Generic, ZIP)
1267 points/GHz
1387 points/GHz
Test#1 (Memory)
1832 points/GHz
2125 points/GHz
TOTAL
15053 points/GHz
16186 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