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Core i5-10400T vs i7-7500U


Description
The i5-10400T is based on Comet Lake architecture while the i7-7500U is based on Kaby Lake.

Using the multithread performance as a reference, the i5-10400T gets a score of 307.2 k points while the i7-7500U gets 93.8 k points.

Summarizing, the i5-10400T is 3.3 times faster than the i7-7500U. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
806e9
Core
Comet Lake-S
Kaby Lake-U
Architecture
Base frecuency
2 GHz
2.7 GHz
Boost frecuency
3.6 GHz
3.5 GHz
Socket
FC-LGA 1200
BGA1356
Cores/Threads
6/12
2/4
TDP
35 W
15 W
Cache L1 (d+i)
6x32+6x32 kB
2x32+2x32 kB
Cache L2
6x256 kB
2x256 kB
Cache L3
12288 kB
4096 kB
Date
April 2020
August 2016

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
i7-7500U
Test#1 (Integers)
4004
3525 (-11.96%)
Test#2 (FP)
14189
14669 (3.38%)
Test#3 (Generic, ZIP)
4620
4837 (4.70%)
Test#1 (Memory)
11029
6256 (-43.28%)
TOTAL
33842
29287 (-13.46%)

Multithread

i5-10400T

i7-7500U
Test#1 (Integers)
22767
7263 (-68.10%)
Test#2 (FP)
96586
35040 (-63.72%)
Test#3 (Generic, ZIP)
31652
11276 (-64.38%)
Test#1 (Memory)
2451
5695 (132.34%)
TOTAL
153456
59273 (-61.37%)

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
i7-7500U
Test#1 (Integers)
12610
12932 (2.55%)
Test#2 (FP)
17941
18628 (3.83%)
Test#3 (Generic, ZIP)
4828
5031 (4.20%)
Test#1 (Memory)
10811
6163 (-42.99%)
TOTAL
46191
42753 (-7.44%)

Multithread

i5-10400T

i7-7500U
Test#1 (Integers)
74617
27132 (-63.64%)
Test#2 (FP)
119634
43194 (-63.90%)
Test#3 (Generic, ZIP)
32645
11703 (-64.15%)
Test#1 (Memory)
2520
4990 (98.03%)
TOTAL
229416
87018 (-62.07%)

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
i7-7500U
Test#1 (Integers)
12498
12707 (1.68%)
Test#2 (FP)
19053
18607 (-2.34%)
Test#3 (Generic, ZIP)
4722
4777 (1.16%)
Test#1 (Memory)
10297
6633 (-35.59%)
TOTAL
46570
42724 (-8.26%)

Multithread

i5-10400T

i7-7500U
Test#1 (Integers)
74581
27271 (-63.43%)
Test#2 (FP)
126959
44704 (-64.79%)
Test#3 (Generic, ZIP)
31762
11329 (-64.33%)
Test#1 (Memory)
2497
5555 (122.44%)
TOTAL
235799
88858 (-62.32%)

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
i7-7500U
Test#1 (Integers)
21999
20451 (-7.04%)
Test#2 (FP)
19977
17922 (-10.29%)
Test#3 (Generic, ZIP)
4566
3746 (-17.96%)
Test#1 (Memory)
11306
5126 (-54.67%)
TOTAL
57847
47244 (-18.33%)

Multithread

i5-10400T

i7-7500U
Test#1 (Integers)
136687
40410 (-70.44%)
Test#2 (FP)
135254
39557 (-70.75%)
Test#3 (Generic, ZIP)
32756
8989 (-72.56%)
Test#1 (Memory)
2478
4864 (96.30%)
TOTAL
307175
93819 (-69.46%)

Performance/W
i5-10400T
i7-7500U
Test#1 (Integers)
3905 points/W
2694 points/W
Test#2 (FP)
3864 points/W
2637 points/W
Test#3 (Generic, ZIP)
936 points/W
599 points/W
Test#1 (Memory)
71 points/W
324 points/W
TOTAL
8776 points/W
6255 points/W

Performance/GHz
i5-10400T
i7-7500U
Test#1 (Integers)
6111 points/GHz
5843 points/GHz
Test#2 (FP)
5549 points/GHz
5121 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1070 points/GHz
Test#1 (Memory)
3141 points/GHz
1464 points/GHz
TOTAL
16069 points/GHz
13498 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