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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
Mean monothread perf.
57.85k points
69.09k points
Mean multithread perf.
307.18k points
307.52k 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
i5-10400T
i5-8500
Test#1 (Integers)
4k
4.19k (x1.05)
Test#2 (FP)
14.19k
17.38k (x1.22)
Test#3 (Generic, ZIP)
4.62k
5.46k (x1.18)
Test#1 (Memory)
11.03k
11.92k (x1.08)
TOTAL
33.84k
38.96k (x1.15)

Multithread

i5-10400T

i5-8500
Test#1 (Integers)
22.77k
27.67k (x1.22)
Test#2 (FP)
96.59k
94.07k (x0.97)
Test#3 (Generic, ZIP)
31.65k
29.05k (x0.92)
Test#1 (Memory)
2.45k
4.39k (x1.79)
TOTAL
153.46k
155.18k (x1.01)

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)
12.61k
15.22k (x1.21)
Test#2 (FP)
17.94k
22.02k (x1.23)
Test#3 (Generic, ZIP)
4.83k
5.75k (x1.19)
Test#1 (Memory)
10.81k
12.17k (x1.13)
TOTAL
46.19k
55.17k (x1.19)

Multithread

i5-10400T

i5-8500
Test#1 (Integers)
74.62k
87.78k (x1.18)
Test#2 (FP)
119.63k
126.73k (x1.06)
Test#3 (Generic, ZIP)
32.65k
32.93k (x1.01)
Test#1 (Memory)
2.52k
4.22k (x1.67)
TOTAL
229.42k
251.65k (x1.1)

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)
12.5k
15.21k (x1.22)
Test#2 (FP)
19.05k
22.94k (x1.2)
Test#3 (Generic, ZIP)
4.72k
5.54k (x1.17)
Test#1 (Memory)
10.3k
11.39k (x1.11)
TOTAL
46.57k
55.07k (x1.18)

Multithread

i5-10400T

i5-8500
Test#1 (Integers)
74.58k
79.52k (x1.07)
Test#2 (FP)
126.96k
107.78k (x0.85)
Test#3 (Generic, ZIP)
31.76k
31.89k (x1)
Test#1 (Memory)
2.5k
13.37k (x5.35)
TOTAL
235.8k
232.55k (x0.99)

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)
22k
27.36k (x1.24)
Test#2 (FP)
19.98k
24.27k (x1.21)
Test#3 (Generic, ZIP)
4.57k
5.69k (x1.25)
Test#1 (Memory)
11.31k
11.77k (x1.04)
TOTAL
57.85k
69.09k (x1.19)

Multithread

i5-10400T

i5-8500
Test#1 (Integers)
136.69k
144.77k (x1.06)
Test#2 (FP)
135.25k
129.04k (x0.95)
Test#3 (Generic, ZIP)
32.76k
29.53k (x0.9)
Test#1 (Memory)
2.48k
4.18k (x1.69)
TOTAL
307.18k
307.52k (x1)

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. 3.11.4