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Core i5-10400T vs i5-8500


Description
The i5-10400T is based on Comet Lake architecture while the i5-8500 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 i5-8500 gets 307.5 k points.

Summarizing, the i5-8500 is 1 times faster than the i5-10400T. 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
3 GHz
Boost frecuency
3.6 GHz
4.1 GHz
Socket
FC-LGA 1200
LGA 1151
Cores/Threads
6/12
6/6
TDP
35 W
65 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
i5-8500
Test#1 (Integers)
4004
4192 (4.68%)
Test#2 (FP)
14189
17378 (22.47%)
Test#3 (Generic, ZIP)
4620
5462 (18.23%)
Test#1 (Memory)
11029
11924 (8.12%)
TOTAL
33842
38956 (15.11%)

Multithread

i5-10400T

i5-8500
Test#1 (Integers)
22767
27672 (21.54%)
Test#2 (FP)
96586
94071 (-2.60%)
Test#3 (Generic, ZIP)
31652
29055 (-8.21%)
Test#1 (Memory)
2451
4386 (78.94%)
TOTAL
153456
155184 (1.13%)

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
i5-8500
Test#1 (Integers)
12610
15225 (20.73%)
Test#2 (FP)
17941
22020 (22.73%)
Test#3 (Generic, ZIP)
4828
5746 (19.01%)
Test#1 (Memory)
10811
12175 (12.61%)
TOTAL
46191
55165 (19.43%)

Multithread

i5-10400T

i5-8500
Test#1 (Integers)
74617
87781 (17.64%)
Test#2 (FP)
119634
126729 (5.93%)
Test#3 (Generic, ZIP)
32645
32928 (0.87%)
Test#1 (Memory)
2520
4215 (67.29%)
TOTAL
229416
251654 (9.69%)

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
i5-8500
Test#1 (Integers)
12498
15208 (21.69%)
Test#2 (FP)
19053
22940 (20.40%)
Test#3 (Generic, ZIP)
4722
5538 (17.27%)
Test#1 (Memory)
10297
11389 (10.60%)
TOTAL
46570
55075 (18.26%)

Multithread

i5-10400T

i5-8500
Test#1 (Integers)
74581
79517 (6.62%)
Test#2 (FP)
126959
107776 (-15.11%)
Test#3 (Generic, ZIP)
31762
31885 (0.39%)
Test#1 (Memory)
2497
13367 (435.30%)
TOTAL
235799
232546 (-1.38%)

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
i5-8500
Test#1 (Integers)
21999
27359 (24.37%)
Test#2 (FP)
19977
24271 (21.50%)
Test#3 (Generic, ZIP)
4566
5691 (24.64%)
Test#1 (Memory)
11306
11765 (4.06%)
TOTAL
57847
69087 (19.43%)

Multithread

i5-10400T

i5-8500
Test#1 (Integers)
136687
144773 (5.92%)
Test#2 (FP)
135254
129040 (-4.59%)
Test#3 (Generic, ZIP)
32756
29526 (-9.86%)
Test#1 (Memory)
2478
4185 (68.88%)
TOTAL
307175
307524 (0.11%)

Performance/W
i5-10400T
i5-8500
Test#1 (Integers)
3905 points/W
2227 points/W
Test#2 (FP)
3864 points/W
1985 points/W
Test#3 (Generic, ZIP)
936 points/W
454 points/W
Test#1 (Memory)
71 points/W
64 points/W
TOTAL
8776 points/W
4731 points/W

Performance/GHz
i5-10400T
i5-8500
Test#1 (Integers)
6111 points/GHz
6673 points/GHz
Test#2 (FP)
5549 points/GHz
5920 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1388 points/GHz
Test#1 (Memory)
3141 points/GHz
2870 points/GHz
TOTAL
16069 points/GHz
16850 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