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Core i5-8265U vs i5-10400T


Description
The i5-8265U is based on Whiskey Lake architecture while the i5-10400T is based on Comet Lake.

Using the multithread performance as a reference, the i5-8265U gets a score of 149.5 k points while the i5-10400T gets 307.2 k points.

Summarizing, the i5-10400T is 2.1 times faster than the i5-8265U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806eb
a0653
Core
Whiskey Lake-U
Comet Lake-S
Architecture
Base frecuency
1.6 GHz
2 GHz
Boost frecuency
3.9 GHz
3.6 GHz
Socket
BGA 1528
FC-LGA 1200
Cores/Threads
4/8
6/12
TDP
15 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
6144 kB
12288 kB
Date
August 2018
April 2020
Mean monothread perf.
57.57k points
57.85k points
Mean multithread perf.
149.48k points
307.18k points

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
i5-8265U
i5-10400T
Test#1 (Integers)
24.32k
22k (x0.9)
Test#2 (FP)
20.35k
19.98k (x0.98)
Test#3 (Generic, ZIP)
4.38k
4.57k (x1.04)
Test#1 (Memory)
8.52k
11.31k (x1.33)
TOTAL
57.57k
57.85k (x1)

Multithread

i5-8265U

i5-10400T
Test#1 (Integers)
65.17k
136.69k (x2.1)
Test#2 (FP)
63.6k
135.25k (x2.13)
Test#3 (Generic, ZIP)
14.4k
32.76k (x2.28)
Test#1 (Memory)
6.31k
2.48k (x0.39)
TOTAL
149.48k
307.18k (x2.05)

Performance/W
i5-8265U
i5-10400T
Test#1 (Integers)
4345 points/W
3905 points/W
Test#2 (FP)
4240 points/W
3864 points/W
Test#3 (Generic, ZIP)
960 points/W
936 points/W
Test#1 (Memory)
421 points/W
71 points/W
TOTAL
9965 points/W
8776 points/W

Performance/GHz
i5-8265U
i5-10400T
Test#1 (Integers)
6235 points/GHz
6111 points/GHz
Test#2 (FP)
5219 points/GHz
5549 points/GHz
Test#3 (Generic, ZIP)
1124 points/GHz
1268 points/GHz
Test#1 (Memory)
2183 points/GHz
3141 points/GHz
TOTAL
14762 points/GHz
16069 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