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Core i5-10400T vs i5-8500T


Description
The i5-10400T is based on Comet Lake architecture while the i5-8500T is based on Coffee Lake.

Using the multithread performance as a reference, the i5-10400T gets a score of 307.2 k points while the i5-8500T gets 251.8 k points.

Summarizing, the i5-10400T is 1.2 times faster than the i5-8500T. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
906ea
Core
Comet Lake-S
Coffee Lake-S
Architecture
Base frecuency
2 GHz
2.1 GHz
Boost frecuency
3.6 GHz
3.5 GHz
Socket
FC-LGA 1200
LGA 1151
Cores/Threads
6/12
6/6
TDP
35 W
35 W
Cache L1 (d+i)
6x32+6x32 kB
6x32+6x32 kB
Cache L2
6x256 kB
6x256 kB
Cache L3
12288 kB
9216 kB
Date
April 2020
March 2018

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
i5-10400T
i5-8500T
Test#1 (Integers)
4004
3559 (-11.11%)
Test#2 (FP)
14189
14758 (4.00%)
Test#3 (Generic, ZIP)
4620
4457 (-3.51%)
Test#1 (Memory)
11029
8723 (-20.91%)
TOTAL
33842
31497 (-6.93%)

Multithread

i5-10400T

i5-8500T
Test#1 (Integers)
22767
19371 (-14.92%)
Test#2 (FP)
96586
82354 (-14.74%)
Test#3 (Generic, ZIP)
31652
24602 (-22.27%)
Test#1 (Memory)
2451
2967 (21.06%)
TOTAL
153456
129295 (-15.75%)

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
i5-10400T
i5-8500T
Test#1 (Integers)
12610
12931 (2.55%)
Test#2 (FP)
17941
18613 (3.74%)
Test#3 (Generic, ZIP)
4828
4759 (-1.43%)
Test#1 (Memory)
10811
10054 (-7.00%)
TOTAL
46191
46358 (0.36%)

Multithread

i5-10400T

i5-8500T
Test#1 (Integers)
74617
71148 (-4.65%)
Test#2 (FP)
119634
102739 (-14.12%)
Test#3 (Generic, ZIP)
32645
26602 (-18.51%)
Test#1 (Memory)
2520
2898 (15.01%)
TOTAL
229416
203386 (-11.35%)

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
i5-10400T
i5-8500T
Test#1 (Integers)
12498
12920 (3.38%)
Test#2 (FP)
19053
19465 (2.17%)
Test#3 (Generic, ZIP)
4722
4620 (-2.15%)
Test#1 (Memory)
10297
9597 (-6.80%)
TOTAL
46570
46603 (0.07%)

Multithread

i5-10400T

i5-8500T
Test#1 (Integers)
74581
71250 (-4.47%)
Test#2 (FP)
126959
91157 (-28.20%)
Test#3 (Generic, ZIP)
31762
24448 (-23.03%)
Test#1 (Memory)
2497
2851 (14.16%)
TOTAL
235799
189705 (-19.55%)

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
i5-10400T
i5-8500T
Test#1 (Integers)
21999
23129 (5.14%)
Test#2 (FP)
19977
20698 (3.61%)
Test#3 (Generic, ZIP)
4566
4710 (3.15%)
Test#1 (Memory)
11306
10734 (-5.06%)
TOTAL
57847
59270 (2.46%)

Multithread

i5-10400T

i5-8500T
Test#1 (Integers)
136687
125168 (-8.43%)
Test#2 (FP)
135254
98070 (-27.49%)
Test#3 (Generic, ZIP)
32756
25570 (-21.94%)
Test#1 (Memory)
2478
3015 (21.66%)
TOTAL
307175
251822 (-18.02%)

Performance/W
i5-10400T
i5-8500T
Test#1 (Integers)
3905 points/W
3576 points/W
Test#2 (FP)
3864 points/W
2802 points/W
Test#3 (Generic, ZIP)
936 points/W
731 points/W
Test#1 (Memory)
71 points/W
86 points/W
TOTAL
8776 points/W
7195 points/W

Performance/GHz
i5-10400T
i5-8500T
Test#1 (Integers)
6111 points/GHz
6608 points/GHz
Test#2 (FP)
5549 points/GHz
5914 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1346 points/GHz
Test#1 (Memory)
3141 points/GHz
3067 points/GHz
TOTAL
16069 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.


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. 3.7.9