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Core i5-10400T vs i7-5820K


Description
The i5-10400T is based on Comet Lake architecture while the i7-5820K is based on Haswell.

Using the multithread performance as a reference, the i5-10400T gets a score of 235.8 k points while the i7-5820K gets 129.1 k points.

Summarizing, the i5-10400T is 1.8 times faster than the i7-5820K . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
a0653
306f2
Core
Comet Lake-S
Haswell-E
Architecture
Base frecuency
2 GHz
3.3 GHz
Boost frecuency
3.6 GHz
3.6 GHz
Socket
FC-LGA 1200
LGA 1150
Cores/Threads
6/12
6/12
TDP
35 W
140 W
Cache L1 (d+i)
6x32+6x32 kB
32+32 kB
Cache L2
6x256 kB
256 kB
Cache L3
12288 kB
15360 kB
Date
April 2020
September 2014

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
i7-5820K
Test#1 (Integers)
4004
3822 (-4.56%)
Test#2 (FP)
14189
9641 (-32.05%)
Test#3 (Generic, ZIP)
4620
4286 (-7.21%)
Test#1 (Memory)
11029
3781 (-65.72%)
TOTAL
33842
21530 (-36.38%)

Multithread

i5-10400T

i7-5820K
Test#1 (Integers)
22767
18067 (-20.64%)
Test#2 (FP)
96586
64252 (-33.48%)
Test#3 (Generic, ZIP)
31652
27029 (-14.61%)
Test#1 (Memory)
2451
8034 (227.78%)
TOTAL
153456
117381 (-23.51%)

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
i7-5820K
Test#1 (Integers)
12498
12034 (-3.71%)
Test#2 (FP)
19053
11229 (-41.06%)
Test#3 (Generic, ZIP)
4722
4549 (-3.65%)
Test#1 (Memory)
10297
3720 (-63.88%)
TOTAL
46570
31532 (-32.29%)

Multithread

i5-10400T

i7-5820K
Test#1 (Integers)
74581
49480 (-33.66%)
Test#2 (FP)
126959
52213 (-58.87%)
Test#3 (Generic, ZIP)
31762
19703 (-37.97%)
Test#1 (Memory)
2497
7666 (206.99%)
TOTAL
235799
129061 (-45.27%)

Performance/W
i5-10400T
i7-5820K
Test#1 (Integers)
2131 points/W
353 points/W
Test#2 (FP)
3627 points/W
373 points/W
Test#3 (Generic, ZIP)
907 points/W
141 points/W
Test#1 (Memory)
71 points/W
55 points/W
TOTAL
6737 points/W
922 points/W

Performance/GHz
i5-10400T
i7-5820K
Test#1 (Integers)
3472 points/GHz
3343 points/GHz
Test#2 (FP)
5292 points/GHz
3119 points/GHz
Test#3 (Generic, ZIP)
1312 points/GHz
1264 points/GHz
Test#1 (Memory)
2860 points/GHz
1033 points/GHz
TOTAL
12936 points/GHz
8759 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