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Core i5-10500T vs i5-8400


Description
The i5-10500T is based on Comet Lake architecture while the i5-8400 is based on Coffee Lake.

Using the multithread performance as a reference, the i5-10500T gets a score of 302.1 k points while the i5-8400 gets 289.6 k points.

Summarizing, the i5-10500T is 1 times faster than the i5-8400. 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
2.3 GHz
2.8 GHz
Boost frecuency
3.8 GHz
4 GHz
Socket
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
September 2017
Mean monothread perf.
64.6k points
64.98k points
Mean multithread perf.
302.13k points
289.61k 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
i5-10500T
i5-8400
Test#1 (Integers)
3.87k
4.08k (x1.05)
Test#2 (FP)
15.79k
14.96k (x0.95)
Test#3 (Generic, ZIP)
5.1k
4.98k (x0.98)
Test#1 (Memory)
12.13k
10.29k (x0.85)
TOTAL
36.89k
34.31k (x0.93)

Multithread

i5-10500T

i5-8400
Test#1 (Integers)
22.17k
21.54k (x0.97)
Test#2 (FP)
101.79k
85.13k (x0.84)
Test#3 (Generic, ZIP)
34.13k
28.24k (x0.83)
Test#1 (Memory)
3.74k
4.08k (x1.09)
TOTAL
161.83k
139k (x0.86)

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
i5-10500T
i5-8400
Test#1 (Integers)
25.16k
26.5k (x1.05)
Test#2 (FP)
22.28k
23.11k (x1.04)
Test#3 (Generic, ZIP)
5.18k
5.2k (x1)
Test#1 (Memory)
11.97k
10.16k (x0.85)
TOTAL
64.6k
64.98k (x1.01)

Multithread

i5-10500T

i5-8400
Test#1 (Integers)
144.86k
135.08k (x0.93)
Test#2 (FP)
120.98k
121.49k (x1)
Test#3 (Generic, ZIP)
32.55k
27.53k (x0.85)
Test#1 (Memory)
3.73k
5.5k (x1.47)
TOTAL
302.13k
289.61k (x0.96)

Performance/W
i5-10500T
i5-8400
Test#1 (Integers)
4139 points/W
2078 points/W
Test#2 (FP)
3457 points/W
1869 points/W
Test#3 (Generic, ZIP)
930 points/W
424 points/W
Test#1 (Memory)
107 points/W
85 points/W
TOTAL
8632 points/W
4455 points/W

Performance/GHz
i5-10500T
i5-8400
Test#1 (Integers)
6621 points/GHz
6626 points/GHz
Test#2 (FP)
5863 points/GHz
5778 points/GHz
Test#3 (Generic, ZIP)
1364 points/GHz
1300 points/GHz
Test#1 (Memory)
3151 points/GHz
2541 points/GHz
TOTAL
16999 points/GHz
16245 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