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Core i7-1165G7 vs i5-6400


Description
The i7-1165G7 is based on Tiger Lake architecture while the i5-6400 is based on Skylake.

Using the multithread performance as a reference, the i7-1165G7 gets a score of 210.4 k points while the i5-6400 gets 174.1 k points.

Summarizing, the i7-1165G7 is 1.2 times faster than the i5-6400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
806c1
506e3
Core
Tiger Lake-UP3
Skylake-S
Architecture
Base frecuency
2.8 GHz
2.7 GHz
Boost frecuency
4.7 GHz
3.3 GHz
Socket
BGA 1449
LGA 1151
Cores/Threads
4/8
4/4
TDP
28 W
65 W
Cache L1 (d+i)
4x32+4x48 kB
4x32+4x32 kB
Cache L2
4x1280 kB
4x256 kB
Cache L3
12288 kB
6144 kB
Date
September 2020
September 2015
Mean monothread perf.
62.1k points
48.05k points
Mean multithread perf.
210.4k points
174.05k points

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
i7-1165G7
i5-6400
Test#1 (Integers)
4.26k
3.2k (x0.75)
Test#2 (FP)
19.54k
12.81k (x0.66)
Test#3 (Generic, ZIP)
10.95k
4.18k (x0.38)
Test#1 (Memory)
11.08k
4.3k (x0.39)
TOTAL
45.84k
24.49k (x0.53)

Multithread

i7-1165G7

i5-6400
Test#1 (Integers)
15.69k
11.45k (x0.73)
Test#2 (FP)
68.3k
46.67k (x0.68)
Test#3 (Generic, ZIP)
33.66k
14.69k (x0.44)
Test#1 (Memory)
12.16k
5.92k (x0.49)
TOTAL
129.81k
78.73k (x0.61)

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
i7-1165G7
i5-6400
Test#1 (Integers)
14.48k
11.56k (x0.8)
Test#2 (FP)
24.18k
16.53k (x0.68)
Test#3 (Generic, ZIP)
11.95k
4.3k (x0.36)
Test#1 (Memory)
11.01k
3.97k (x0.36)
TOTAL
61.62k
36.36k (x0.59)

Multithread

i7-1165G7

i5-6400
Test#1 (Integers)
50.98k
43.01k (x0.84)
Test#2 (FP)
80.7k
64.46k (x0.8)
Test#3 (Generic, ZIP)
36.61k
16.14k (x0.44)
Test#1 (Memory)
12.02k
5.91k (x0.49)
TOTAL
180.32k
129.51k (x0.72)

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
i7-1165G7
i5-6400
Test#1 (Integers)
16.27k
11.82k (x0.73)
Test#2 (FP)
25.74k
18.36k (x0.71)
Test#3 (Generic, ZIP)
11.5k
4.43k (x0.38)
Test#1 (Memory)
10.82k
4.95k (x0.46)
TOTAL
64.32k
39.56k (x0.61)

Multithread

i7-1165G7

i5-6400
Test#1 (Integers)
54k
46.04k (x0.85)
Test#2 (FP)
88.76k
69.47k (x0.78)
Test#3 (Generic, ZIP)
35.23k
16.33k (x0.46)
Test#1 (Memory)
12.14k
7.74k (x0.64)
TOTAL
190.12k
139.58k (x0.73)

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
i7-1165G7
i5-6400
Test#1 (Integers)
22.97k
21.1k (x0.92)
Test#2 (FP)
21.61k
18.28k (x0.85)
Test#3 (Generic, ZIP)
8.99k
4.22k (x0.47)
Test#1 (Memory)
8.52k
4.45k (x0.52)
TOTAL
62.1k
48.05k (x0.77)

Multithread

i7-1165G7

i5-6400
Test#1 (Integers)
82.75k
80.03k (x0.97)
Test#2 (FP)
86.58k
71.1k (x0.82)
Test#3 (Generic, ZIP)
29.34k
16.19k (x0.55)
Test#1 (Memory)
11.72k
6.73k (x0.57)
TOTAL
210.4k
174.05k (x0.83)

Performance/W
i7-1165G7
i5-6400
Test#1 (Integers)
2955 points/W
1231 points/W
Test#2 (FP)
3092 points/W
1094 points/W
Test#3 (Generic, ZIP)
1048 points/W
249 points/W
Test#1 (Memory)
419 points/W
104 points/W
TOTAL
7514 points/W
2678 points/W

Performance/GHz
i7-1165G7
i5-6400
Test#1 (Integers)
4887 points/GHz
6394 points/GHz
Test#2 (FP)
4599 points/GHz
5539 points/GHz
Test#3 (Generic, ZIP)
1912 points/GHz
1279 points/GHz
Test#1 (Memory)
1813 points/GHz
1348 points/GHz
TOTAL
13212 points/GHz
14560 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