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Core i7-7820HQ vs i5-10400T


Description
The i7-7820HQ is based on Kaby Lake architecture while the i5-10400T is based on Comet Lake.

Using the multithread performance as a reference, the i7-7820HQ gets a score of 196.6 k points while the i5-10400T gets 307.2 k points.

Summarizing, the i5-10400T is 1.6 times faster than the i7-7820HQ. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
906e9
a0653
Core
Kaby Lake-H
Comet Lake-S
Architecture
Base frecuency
2.9 GHz
2 GHz
Boost frecuency
3.9 GHz
3.6 GHz
Socket
BGA 1440
FC-LGA 1200
Cores/Threads
4/8
6/12
TDP
45 W
35 W
Cache L1 (d+i)
4x32+x4x32 kB
6x32+6x32 kB
Cache L2
4x256 kB
6x256 kB
Cache L3
8192 kB
12288 kB
Date
January 2017
April 2020
Mean monothread perf.
55.85k points
57.85k points
Mean multithread perf.
196.55k 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
i7-7820HQ
i5-10400T
Test#1 (Integers)
23.23k
22k (x0.95)
Test#2 (FP)
20.13k
19.98k (x0.99)
Test#3 (Generic, ZIP)
4.57k
4.57k (x1)
Test#1 (Memory)
7.92k
11.31k (x1.43)
TOTAL
55.85k
57.85k (x1.04)

Multithread

i7-7820HQ

i5-10400T
Test#1 (Integers)
85.54k
136.69k (x1.6)
Test#2 (FP)
87.07k
135.25k (x1.55)
Test#3 (Generic, ZIP)
20.37k
32.76k (x1.61)
Test#1 (Memory)
3.57k
2.48k (x0.69)
TOTAL
196.55k
307.18k (x1.56)

Performance/W
i7-7820HQ
i5-10400T
Test#1 (Integers)
1901 points/W
3905 points/W
Test#2 (FP)
1935 points/W
3864 points/W
Test#3 (Generic, ZIP)
453 points/W
936 points/W
Test#1 (Memory)
79 points/W
71 points/W
TOTAL
4368 points/W
8776 points/W

Performance/GHz
i7-7820HQ
i5-10400T
Test#1 (Integers)
5956 points/GHz
6111 points/GHz
Test#2 (FP)
5163 points/GHz
5549 points/GHz
Test#3 (Generic, ZIP)
1172 points/GHz
1268 points/GHz
Test#1 (Memory)
2030 points/GHz
3141 points/GHz
TOTAL
14321 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