Core i5-6400 vs i5-8500T
Description
The i5-6400 is based on Skylake architecture while the i5-8500T is based on Coffee Lake.
Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i5-8500T gets 251.8 k points.
Summarizing, the i5-8500T is 1.4 times faster than the i5-6400 . 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 i5-8500T gets 251.8 k points.
Summarizing, the i5-8500T is 1.4 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
506e3
906ea
Core
Skylake-S
Coffee Lake-S
Base frecuency
2.7 GHz
2.1 GHz
Boost frecuency
3.3 GHz
3.5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
4/4
6/6
TDP
65 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
6144 kB
9216 kB
Date
September 2015
March 2018
Mean monothread perf.
48.05k points
59.27k points
Mean multithread perf.
174.05k points
251.82k 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
i5-6400
i5-8500T
Test#1 (Integers)
3.2k
3.56k (x1.11)
Test#2 (FP)
12.81k
14.76k (x1.15)
Test#3 (Generic, ZIP)
4.18k
4.46k (x1.07)
Test#1 (Memory)
4.3k
8.72k (x2.03)
TOTAL
24.49k
31.5k (x1.29)
Multithread
i5-6400
i5-8500T
Test#1 (Integers)
11.45k
19.37k (x1.69)
Test#2 (FP)
46.67k
82.35k (x1.76)
Test#3 (Generic, ZIP)
14.69k
24.6k (x1.67)
Test#1 (Memory)
5.92k
2.97k (x0.5)
TOTAL
78.73k
129.29k (x1.64)
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
i5-6400
i5-8500T
Test#1 (Integers)
11.56k
12.93k (x1.12)
Test#2 (FP)
16.53k
18.61k (x1.13)
Test#3 (Generic, ZIP)
4.3k
4.76k (x1.11)
Test#1 (Memory)
3.97k
10.05k (x2.53)
TOTAL
36.36k
46.36k (x1.28)
Multithread
i5-6400
i5-8500T
Test#1 (Integers)
43.01k
71.15k (x1.65)
Test#2 (FP)
64.46k
102.74k (x1.59)
Test#3 (Generic, ZIP)
16.14k
26.6k (x1.65)
Test#1 (Memory)
5.91k
2.9k (x0.49)
TOTAL
129.51k
203.39k (x1.57)
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
i5-6400
i5-8500T
Test#1 (Integers)
11.82k
12.92k (x1.09)
Test#2 (FP)
18.36k
19.47k (x1.06)
Test#3 (Generic, ZIP)
4.43k
4.62k (x1.04)
Test#1 (Memory)
4.95k
9.6k (x1.94)
TOTAL
39.56k
46.6k (x1.18)
Multithread
i5-6400
i5-8500T
Test#1 (Integers)
46.04k
71.25k (x1.55)
Test#2 (FP)
69.47k
91.16k (x1.31)
Test#3 (Generic, ZIP)
16.33k
24.45k (x1.5)
Test#1 (Memory)
7.74k
2.85k (x0.37)
TOTAL
139.58k
189.71k (x1.36)
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
i5-8500T
Test#1 (Integers)
21.1k
23.13k (x1.1)
Test#2 (FP)
18.28k
20.7k (x1.13)
Test#3 (Generic, ZIP)
4.22k
4.71k (x1.12)
Test#1 (Memory)
4.45k
10.73k (x2.41)
TOTAL
48.05k
59.27k (x1.23)
Multithread
i5-6400
i5-8500T
Test#1 (Integers)
80.03k
125.17k (x1.56)
Test#2 (FP)
71.1k
98.07k (x1.38)
Test#3 (Generic, ZIP)
16.19k
25.57k (x1.58)
Test#1 (Memory)
6.73k
3.01k (x0.45)
TOTAL
174.05k
251.82k (x1.45)
Performance/W
i5-6400
i5-8500T
Test#1 (Integers)
1231 points/W
3576 points/W
Test#2 (FP)
1094 points/W
2802 points/W
Test#3 (Generic, ZIP)
249 points/W
731 points/W
Test#1 (Memory)
104 points/W
86 points/W
TOTAL
2678 points/W
7195 points/W
Performance/GHz
i5-6400
i5-8500T
Test#1 (Integers)
6394 points/GHz
6608 points/GHz
Test#2 (FP)
5539 points/GHz
5914 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
1346 points/GHz
Test#1 (Memory)
1348 points/GHz
3067 points/GHz
TOTAL
14560 points/GHz
16934 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