Core i5-6400 vs i5-8265U
Description
The i5-6400 is based on Skylake architecture while the i5-8265U is based on Whiskey Lake.
Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i5-8265U gets 149.5 k points.
Summarizing, the i5-6400 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 i5-6400 gets a score of 174.1 k points while the i5-8265U gets 149.5 k points.
Summarizing, the i5-6400 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
506e3
806eb
Core
Skylake-S
Whiskey Lake-U
Base frecuency
2.7 GHz
1.6 GHz
Boost frecuency
3.3 GHz
3.9 GHz
Socket
LGA 1151
BGA 1528
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 2015
August 2018
Mean monothread perf.
48.05k points
57.57k points
Mean multithread perf.
174.05k points
149.48k points
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
i5-6400
i5-8265U
Test#1 (Integers)
21.1k
24.32k (x1.15)
Test#2 (FP)
18.28k
20.35k (x1.11)
Test#3 (Generic, ZIP)
4.22k
4.38k (x1.04)
Test#1 (Memory)
4.45k
8.52k (x1.91)
TOTAL
48.05k
57.57k (x1.2)
Multithread
i5-6400
i5-8265U
Test#1 (Integers)
80.03k
65.17k (x0.81)
Test#2 (FP)
71.1k
63.6k (x0.89)
Test#3 (Generic, ZIP)
16.19k
14.4k (x0.89)
Test#1 (Memory)
6.73k
6.31k (x0.94)
TOTAL
174.05k
149.48k (x0.86)
Performance/W
i5-6400
i5-8265U
Test#1 (Integers)
1231 points/W
4345 points/W
Test#2 (FP)
1094 points/W
4240 points/W
Test#3 (Generic, ZIP)
249 points/W
960 points/W
Test#1 (Memory)
104 points/W
421 points/W
TOTAL
2678 points/W
9965 points/W
Performance/GHz
i5-6400
i5-8265U
Test#1 (Integers)
6394 points/GHz
6235 points/GHz
Test#2 (FP)
5539 points/GHz
5219 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
1124 points/GHz
Test#1 (Memory)
1348 points/GHz
2183 points/GHz
TOTAL
14560 points/GHz
14762 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