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Core i5-10400T vs i7-7700


Description
The i5-10400T is based on Comet Lake architecture while the i7-7700 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 i7-7700 gets 262.2 k points.

Summarizing, the i5-10400T is 1.2 times faster than the i7-7700 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
906e9
Core
Comet Lake-S
Kaby Lake-S
Architecture
Base frecuency
2 GHz
3.6 GHz
Boost frecuency
3.6 GHz
4.2 GHz
Socket
FC-LGA 1200
LGA 1151
Cores/Threads
6/12
4/8
TDP
35 W
65 W
Cache L1 (d+i)
6x32+6x32 kB
32+32 kB
Cache L2
6x256 kB
256 kB
Cache L3
12288 kB
8192 kB
Date
April 2020
September 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
i7-7700
Test#1 (Integers)
4004
4303 (7.45%)
Test#2 (FP)
14189
17621 (24.18%)
Test#3 (Generic, ZIP)
4620
5536 (19.83%)
Test#1 (Memory)
11029
11726 (6.32%)
TOTAL
33842
39185 (15.79%)

Multithread

i5-10400T

i7-7700
Test#1 (Integers)
22767
16796 (-26.23%)
Test#2 (FP)
96586
78082 (-19.16%)
Test#3 (Generic, ZIP)
31652
26792 (-15.35%)
Test#1 (Memory)
2451
4103 (67.40%)
TOTAL
153456
125773 (-18.04%)

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
i7-7700
Test#1 (Integers)
12498
15274 (22.22%)
Test#2 (FP)
19053
23432 (22.99%)
Test#3 (Generic, ZIP)
4722
5940 (25.81%)
Test#1 (Memory)
10297
10451 (1.49%)
TOTAL
46570
55098 (18.31%)

Multithread

i5-10400T

i7-7700
Test#1 (Integers)
74581
63017 (-15.51%)
Test#2 (FP)
126959
105046 (-17.26%)
Test#3 (Generic, ZIP)
31762
26438 (-16.76%)
Test#1 (Memory)
2497
4035 (61.58%)
TOTAL
235799
198535 (-15.80%)

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
i7-7700
Test#1 (Integers)
21999
27175 (23.53%)
Test#2 (FP)
19977
25094 (25.62%)
Test#3 (Generic, ZIP)
4566
5794 (26.90%)
Test#1 (Memory)
11306
12848 (13.63%)
TOTAL
57847
70911 (22.58%)

Multithread

i5-10400T

i7-7700
Test#1 (Integers)
136687
120948 (-11.51%)
Test#2 (FP)
135254
109758 (-18.85%)
Test#3 (Generic, ZIP)
32756
27356 (-16.49%)
Test#1 (Memory)
2478
4133 (66.77%)
TOTAL
307175
262195 (-14.64%)

Performance/W
i5-10400T
i7-7700
Test#1 (Integers)
3905 points/W
1861 points/W
Test#2 (FP)
3864 points/W
1689 points/W
Test#3 (Generic, ZIP)
936 points/W
421 points/W
Test#1 (Memory)
71 points/W
64 points/W
TOTAL
8776 points/W
4034 points/W

Performance/GHz
i5-10400T
i7-7700
Test#1 (Integers)
6111 points/GHz
6470 points/GHz
Test#2 (FP)
5549 points/GHz
5975 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1380 points/GHz
Test#1 (Memory)
3141 points/GHz
3059 points/GHz
TOTAL
16069 points/GHz
16884 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