Core i5-7400 vs i5-8265U
Description
The i5-7400 is based on Kaby Lake architecture while the i5-8265U is based on Whiskey Lake.
Using the multithread performance as a reference, the i5-7400 gets a score of 173.7 k points while the i5-8265U gets 143.2 k points.
Summarizing, the i5-7400 is 1.2 times faster than the i5-8265U. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i5-7400 gets a score of 173.7 k points while the i5-8265U gets 143.2 k points.
Summarizing, the i5-7400 is 1.2 times faster than the i5-8265U. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
906e9
806ec
Core
Kaby Lake-S
Whiskey Lake-U
Base frecuency
3 GHz
1.6 GHz
Boost frecuency
3.5 GHz
3.9 GHz
Socket
LGA 1151
BGA1528
Cores/Threads
4/4
4/8
TDP
65 W
15 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
August 2018
Mean monothread perf.
52.69k points
46.67k points
Mean multithread perf.
173.7k points
143.23k 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
i5-8265U
Test#1 (Integers)
12.72k
13.66k (x1.07)
Test#2 (FP)
19.3k
21.17k (x1.1)
Test#3 (Generic, ZIP)
4.76k
5k (x1.05)
Test#1 (Memory)
8.73k
8.11k (x0.93)
TOTAL
45.52k
47.94k (x1.05)
Multithread
i5-7400
i5-8265U
Test#1 (Integers)
47.95k
51.36k (x1.07)
Test#2 (FP)
71.98k
79.72k (x1.11)
Test#3 (Generic, ZIP)
17.22k
16.61k (x0.96)
Test#1 (Memory)
8.03k
3.75k (x0.47)
TOTAL
145.18k
151.44k (x1.04)
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
i5-8265U
Test#1 (Integers)
22.37k
19.19k (x0.86)
Test#2 (FP)
19.46k
17.47k (x0.9)
Test#3 (Generic, ZIP)
4.44k
4.04k (x0.91)
Test#1 (Memory)
6.41k
5.97k (x0.93)
TOTAL
52.69k
46.67k (x0.89)
Multithread
i5-7400
i5-8265U
Test#1 (Integers)
79.57k
64.43k (x0.81)
Test#2 (FP)
71.41k
61.91k (x0.87)
Test#3 (Generic, ZIP)
16.44k
13.36k (x0.81)
Test#1 (Memory)
6.27k
3.52k (x0.56)
TOTAL
173.7k
143.23k (x0.82)
Performance/W
i5-7400
i5-8265U
Test#1 (Integers)
1224 points/W
4296 points/W
Test#2 (FP)
1099 points/W
4128 points/W
Test#3 (Generic, ZIP)
253 points/W
890 points/W
Test#1 (Memory)
96 points/W
235 points/W
TOTAL
2672 points/W
9548 points/W
Performance/GHz
i5-7400
i5-8265U
Test#1 (Integers)
6392 points/GHz
4920 points/GHz
Test#2 (FP)
5561 points/GHz
4478 points/GHz
Test#3 (Generic, ZIP)
1267 points/GHz
1037 points/GHz
Test#1 (Memory)
1832 points/GHz
1531 points/GHz
TOTAL
15053 points/GHz
11966 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