Core i7-7500U vs i5-7400
Description
Both models i7-7500U and i5-7400 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 i7-7500U gets a score of 86.9 k points while the i5-7400 gets 173.7 k points.
Summarizing, the i5-7400 is 2 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.
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 i7-7500U gets a score of 86.9 k points while the i5-7400 gets 173.7 k points.
Summarizing, the i5-7400 is 2 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
806e9
906e9
Core
Kaby Lake-U
Kaby Lake-S
Base frecuency
2.7 GHz
3 GHz
Boost frecuency
3.5 GHz
3.5 GHz
Socket
BGA1356
LGA 1151
Cores/Threads
2/4
4/4
TDP
15 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
4096 kB
6144 kB
Date
August 2016
September 2016
Mean monothread perf.
48.67k points
52.69k points
Mean multithread perf.
86.94k points
173.7k 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
i7-7500U
i5-7400
Test#1 (Integers)
12.71k
12.72k (x1)
Test#2 (FP)
18.61k
19.3k (x1.04)
Test#3 (Generic, ZIP)
4.78k
4.76k (x1)
Test#1 (Memory)
6.63k
8.73k (x1.32)
TOTAL
42.72k
45.52k (x1.07)
Multithread
i7-7500U
i5-7400
Test#1 (Integers)
27.27k
47.95k (x1.76)
Test#2 (FP)
44.7k
71.98k (x1.61)
Test#3 (Generic, ZIP)
11.33k
17.22k (x1.52)
Test#1 (Memory)
5.55k
8.03k (x1.45)
TOTAL
88.86k
145.18k (x1.63)
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
i7-7500U
i5-7400
Test#1 (Integers)
20.74k
22.37k (x1.08)
Test#2 (FP)
18.41k
19.46k (x1.06)
Test#3 (Generic, ZIP)
3.98k
4.44k (x1.11)
Test#1 (Memory)
5.54k
6.41k (x1.16)
TOTAL
48.67k
52.69k (x1.08)
Multithread
i7-7500U
i5-7400
Test#1 (Integers)
37.34k
79.57k (x2.13)
Test#2 (FP)
35.79k
71.41k (x2)
Test#3 (Generic, ZIP)
8.34k
16.44k (x1.97)
Test#1 (Memory)
5.48k
6.27k (x1.14)
TOTAL
86.94k
173.7k (x2)
Performance/W
i7-7500U
i5-7400
Test#1 (Integers)
2489 points/W
1224 points/W
Test#2 (FP)
2386 points/W
1099 points/W
Test#3 (Generic, ZIP)
556 points/W
253 points/W
Test#1 (Memory)
365 points/W
96 points/W
TOTAL
5796 points/W
2672 points/W
Performance/GHz
i7-7500U
i5-7400
Test#1 (Integers)
5926 points/GHz
6392 points/GHz
Test#2 (FP)
5260 points/GHz
5561 points/GHz
Test#3 (Generic, ZIP)
1137 points/GHz
1267 points/GHz
Test#1 (Memory)
1584 points/GHz
1832 points/GHz
TOTAL
13907 points/GHz
15053 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