| | | |

Core i5-10400T vs i7-7700K


Description
The i5-10400T is based on Comet Lake architecture while the i7-7700K 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 i7-7700K gets 292.3 k points.

Summarizing, the i5-10400T is 1.1 times faster than the i7-7700K . 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
4.2 GHz
Boost frecuency
3.6 GHz
4.5 GHz
Socket
FC-LGA 1200
LGA 1151
Cores/Threads
6/12
4/8
TDP
35 W
95 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
i7-7700K
Test#1 (Integers)
4004
4629 (15.62%)
Test#2 (FP)
14189
18925 (33.37%)
Test#3 (Generic, ZIP)
4620
6221 (34.67%)
Test#1 (Memory)
11029
13922 (26.23%)
TOTAL
33842
43698 (29.12%)

Multithread

i5-10400T

i7-7700K
Test#1 (Integers)
22767
18529 (-18.61%)
Test#2 (FP)
96586
86487 (-10.46%)
Test#3 (Generic, ZIP)
31652
28778 (-9.08%)
Test#1 (Memory)
2451
9674 (294.70%)
TOTAL
153456
143468 (-6.51%)

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
i7-7700K
Test#1 (Integers)
12498
17549 (40.42%)
Test#2 (FP)
19053
27822 (46.03%)
Test#3 (Generic, ZIP)
4722
6796 (43.92%)
Test#1 (Memory)
10297
14832 (44.03%)
TOTAL
46570
66999 (43.87%)

Multithread

i5-10400T

i7-7700K
Test#1 (Integers)
74581
68395 (-8.29%)
Test#2 (FP)
126959
118805 (-6.42%)
Test#3 (Generic, ZIP)
31762
33336 (4.96%)
Test#1 (Memory)
2497
17434 (598.16%)
TOTAL
235799
237970 (0.92%)

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
i7-7700K
Test#1 (Integers)
21999
30879 (40.37%)
Test#2 (FP)
19977
27266 (36.49%)
Test#3 (Generic, ZIP)
4566
6416 (40.52%)
Test#1 (Memory)
11306
14011 (23.93%)
TOTAL
57847
78572 (35.83%)

Multithread

i5-10400T

i7-7700K
Test#1 (Integers)
136687
130361 (-4.63%)
Test#2 (FP)
135254
122434 (-9.48%)
Test#3 (Generic, ZIP)
32756
29679 (-9.39%)
Test#1 (Memory)
2478
9830 (296.69%)
TOTAL
307175
292304 (-4.84%)

Performance/W
i5-10400T
i7-7700K
Test#1 (Integers)
3905 points/W
1372 points/W
Test#2 (FP)
3864 points/W
1289 points/W
Test#3 (Generic, ZIP)
936 points/W
312 points/W
Test#1 (Memory)
71 points/W
103 points/W
TOTAL
8776 points/W
3077 points/W

Performance/GHz
i5-10400T
i7-7700K
Test#1 (Integers)
6111 points/GHz
6862 points/GHz
Test#2 (FP)
5549 points/GHz
6059 points/GHz
Test#3 (Generic, ZIP)
1268 points/GHz
1426 points/GHz
Test#1 (Memory)
3141 points/GHz
3114 points/GHz
TOTAL
16069 points/GHz
17460 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