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Core i5-8500T vs i5-7400


Description
The i5-8500T is based on Coffee Lake architecture while the i5-7400 is based on Kaby Lake.

Using the multithread performance as a reference, the i5-8500T gets a score of 251.8 k points while the i5-7400 gets 173.7 k points.

Summarizing, the i5-8500T is 1.4 times faster than the i5-7400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906ea
906e9
Core
Coffee Lake-S
Kaby Lake-S
Architecture
Base frecuency
2.1 GHz
3 GHz
Boost frecuency
3.5 GHz
3.5 GHz
Socket
LGA 1151
LGA 1151
Cores/Threads
6/6
4/4
TDP
35 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
4x32+4x32 kB
Cache L2
6x256 kB
4x256 kB
Cache L3
9216 kB
6144 kB
Date
March 2018
September 2016
Mean monothread perf.
59.27k points
52.69k points
Mean multithread perf.
251.82k 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
i5-8500T
i5-7400
Test#1 (Integers)
12.92k
12.72k (x0.98)
Test#2 (FP)
19.47k
19.3k (x0.99)
Test#3 (Generic, ZIP)
4.62k
4.76k (x1.03)
Test#1 (Memory)
9.6k
8.73k (x0.91)
TOTAL
46.6k
45.52k (x0.98)

Multithread

i5-8500T

i5-7400
Test#1 (Integers)
71.25k
47.95k (x0.67)
Test#2 (FP)
91.16k
71.98k (x0.79)
Test#3 (Generic, ZIP)
24.45k
17.22k (x0.7)
Test#1 (Memory)
2.85k
8.03k (x2.82)
TOTAL
189.71k
145.18k (x0.77)

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
i5-8500T
i5-7400
Test#1 (Integers)
23.13k
22.37k (x0.97)
Test#2 (FP)
20.7k
19.46k (x0.94)
Test#3 (Generic, ZIP)
4.71k
4.44k (x0.94)
Test#1 (Memory)
10.73k
6.41k (x0.6)
TOTAL
59.27k
52.69k (x0.89)

Multithread

i5-8500T

i5-7400
Test#1 (Integers)
125.17k
79.57k (x0.64)
Test#2 (FP)
98.07k
71.41k (x0.73)
Test#3 (Generic, ZIP)
25.57k
16.44k (x0.64)
Test#1 (Memory)
3.01k
6.27k (x2.08)
TOTAL
251.82k
173.7k (x0.69)

Performance/W
i5-8500T
i5-7400
Test#1 (Integers)
3576 points/W
1224 points/W
Test#2 (FP)
2802 points/W
1099 points/W
Test#3 (Generic, ZIP)
731 points/W
253 points/W
Test#1 (Memory)
86 points/W
96 points/W
TOTAL
7195 points/W
2672 points/W

Performance/GHz
i5-8500T
i5-7400
Test#1 (Integers)
6608 points/GHz
6392 points/GHz
Test#2 (FP)
5914 points/GHz
5561 points/GHz
Test#3 (Generic, ZIP)
1346 points/GHz
1267 points/GHz
Test#1 (Memory)
3067 points/GHz
1832 points/GHz
TOTAL
16934 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.


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