Core i5-6400 vs i3-1005G1
Description
The i5-6400 is based on Skylake architecture while the i3-1005G1 is based on Ice Lake.
Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i3-1005G1 gets 116.6 k points.
Summarizing, the i5-6400 is 1.5 times faster than the i3-1005G1. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the i5-6400 gets a score of 174.1 k points while the i3-1005G1 gets 116.6 k points.
Summarizing, the i5-6400 is 1.5 times faster than the i3-1005G1. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
506e3
706e5
Core
Skylake-S
Ice Lake-U
Base frecuency
2.7 GHz
1.2 GHz
Boost frecuency
3.3 GHz
3.4 GHz
Socket
LGA 1151
BGA 1526
Cores/Threads
4/4
2/4
TDP
65 W
15 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x48 kB
Cache L2
4x256 kB
2x512 kB
Cache L3
6144 kB
4096 kB
Date
September 2015
August 2019
Mean monothread perf.
48.05k points
50.62k points
Mean multithread perf.
174.05k points
116.63k 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
i5-6400
i3-1005G1
Test#1 (Integers)
3.2k
3.07k (x0.96)
Test#2 (FP)
12.81k
13.76k (x1.07)
Test#3 (Generic, ZIP)
4.18k
8k (x1.91)
Test#1 (Memory)
4.3k
6.59k (x1.53)
TOTAL
24.49k
31.42k (x1.28)
Multithread
i5-6400
i3-1005G1
Test#1 (Integers)
11.45k
8k (x0.7)
Test#2 (FP)
46.67k
35.53k (x0.76)
Test#3 (Generic, ZIP)
14.69k
18.53k (x1.26)
Test#1 (Memory)
5.92k
4.3k (x0.73)
TOTAL
78.73k
66.36k (x0.84)
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
i5-6400
i3-1005G1
Test#1 (Integers)
11.56k
10.52k (x0.91)
Test#2 (FP)
16.53k
17.6k (x1.06)
Test#3 (Generic, ZIP)
4.3k
8.76k (x2.04)
Test#1 (Memory)
3.97k
6.55k (x1.65)
TOTAL
36.36k
43.44k (x1.19)
Multithread
i5-6400
i3-1005G1
Test#1 (Integers)
43.01k
26.86k (x0.62)
Test#2 (FP)
64.46k
42.38k (x0.66)
Test#3 (Generic, ZIP)
16.14k
20.65k (x1.28)
Test#1 (Memory)
5.91k
4.21k (x0.71)
TOTAL
129.51k
94.1k (x0.73)
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
i5-6400
i3-1005G1
Test#1 (Integers)
11.82k
11.93k (x1.01)
Test#2 (FP)
18.36k
16.99k (x0.93)
Test#3 (Generic, ZIP)
4.43k
6.43k (x1.45)
Test#1 (Memory)
4.95k
4.59k (x0.93)
TOTAL
39.56k
39.93k (x1.01)
Multithread
i5-6400
i3-1005G1
Test#1 (Integers)
46.04k
29.07k (x0.63)
Test#2 (FP)
69.47k
46.14k (x0.66)
Test#3 (Generic, ZIP)
16.33k
19.47k (x1.19)
Test#1 (Memory)
7.74k
4.18k (x0.54)
TOTAL
139.58k
98.86k (x0.71)
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
i5-6400
i3-1005G1
Test#1 (Integers)
21.1k
19.45k (x0.92)
Test#2 (FP)
18.28k
16.75k (x0.92)
Test#3 (Generic, ZIP)
4.22k
8.04k (x1.91)
Test#1 (Memory)
4.45k
6.38k (x1.43)
TOTAL
48.05k
50.62k (x1.05)
Multithread
i5-6400
i3-1005G1
Test#1 (Integers)
80.03k
46.52k (x0.58)
Test#2 (FP)
71.1k
48.76k (x0.69)
Test#3 (Generic, ZIP)
16.19k
17.12k (x1.06)
Test#1 (Memory)
6.73k
4.23k (x0.63)
TOTAL
174.05k
116.63k (x0.67)
Performance/W
i5-6400
i3-1005G1
Test#1 (Integers)
1231 points/W
3102 points/W
Test#2 (FP)
1094 points/W
3251 points/W
Test#3 (Generic, ZIP)
249 points/W
1141 points/W
Test#1 (Memory)
104 points/W
282 points/W
TOTAL
2678 points/W
7776 points/W
Performance/GHz
i5-6400
i3-1005G1
Test#1 (Integers)
6394 points/GHz
5721 points/GHz
Test#2 (FP)
5539 points/GHz
4926 points/GHz
Test#3 (Generic, ZIP)
1279 points/GHz
2365 points/GHz
Test#1 (Memory)
1348 points/GHz
1877 points/GHz
TOTAL
14560 points/GHz
14889 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4