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Core i5-7400 vs i3-1005G1


Description
The i5-7400 is based on Kaby Lake architecture while the i3-1005G1 is based on Ice Lake.

Using the multithread performance as a reference, the i5-7400 gets a score of 173.7 k points while the i3-1005G1 gets 116.6 k points.

Summarizing, the i5-7400 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
906e9
706e5
Core
Kaby Lake-S
Ice Lake-U
Architecture
Base frecuency
3 GHz
1.2 GHz
Boost frecuency
3.5 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 2016
August 2019
Mean monothread perf.
52.69k points
50.62k points
Mean multithread perf.
173.7k points
116.63k points

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
i5-7400
i3-1005G1
Test#1 (Integers)
12.72k
11.93k (x0.94)
Test#2 (FP)
19.3k
16.99k (x0.88)
Test#3 (Generic, ZIP)
4.76k
6.43k (x1.35)
Test#1 (Memory)
8.73k
4.59k (x0.53)
TOTAL
45.52k
39.93k (x0.88)

Multithread

i5-7400

i3-1005G1
Test#1 (Integers)
47.95k
29.07k (x0.61)
Test#2 (FP)
71.98k
46.14k (x0.64)
Test#3 (Generic, ZIP)
17.22k
19.47k (x1.13)
Test#1 (Memory)
8.03k
4.18k (x0.52)
TOTAL
145.18k
98.86k (x0.68)

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
i5-7400
i3-1005G1
Test#1 (Integers)
22.37k
19.45k (x0.87)
Test#2 (FP)
19.46k
16.75k (x0.86)
Test#3 (Generic, ZIP)
4.44k
8.04k (x1.81)
Test#1 (Memory)
6.41k
6.38k (x1)
TOTAL
52.69k
50.62k (x0.96)

Multithread

i5-7400

i3-1005G1
Test#1 (Integers)
79.57k
46.52k (x0.58)
Test#2 (FP)
71.41k
48.76k (x0.68)
Test#3 (Generic, ZIP)
16.44k
17.12k (x1.04)
Test#1 (Memory)
6.27k
4.23k (x0.67)
TOTAL
173.7k
116.63k (x0.67)

Performance/W
i5-7400
i3-1005G1
Test#1 (Integers)
1224 points/W
3102 points/W
Test#2 (FP)
1099 points/W
3251 points/W
Test#3 (Generic, ZIP)
253 points/W
1141 points/W
Test#1 (Memory)
96 points/W
282 points/W
TOTAL
2672 points/W
7776 points/W

Performance/GHz
i5-7400
i3-1005G1
Test#1 (Integers)
6392 points/GHz
5721 points/GHz
Test#2 (FP)
5561 points/GHz
4926 points/GHz
Test#3 (Generic, ZIP)
1267 points/GHz
2365 points/GHz
Test#1 (Memory)
1832 points/GHz
1877 points/GHz
TOTAL
15053 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.


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