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A6 7400K vs Core i3-7100U


Description
The 7400K is based on Steamroller architecture while the i3-7100U is based on Kaby Lake.

Using the multithread performance as a reference, the 7400K gets a score of 34.3 k points while the i3-7100U gets 60.5 k points.

Summarizing, the i3-7100U is 1.8 times faster than the 7400K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
630f01
806e9
Core
Kaveri
Kaby Lake-U
Architecture
Base frecuency
3.5 GHz
2.4 GHz
Boost frecuency
3.9 GHz
2.4 GHz
Socket
Socket FM2+
BGA 1356
Cores/Threads
2/2
2/4
TDP
65 W
15 W
Cache L1 (d+i)
2x16+64 kB
2x32+2x32 kB
Cache L2
1024 kB
2x256 kB
Cache L3
0 kB
3072 kB
Date
July 2014
August 2016
Mean monothread perf.
24.01k points
33.38k points
Mean multithread perf.
34.28k points
79.6k 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
7400K
i3-7100U
Test#1 (Integers)
8.78k
8.76k (x1)
Test#2 (FP)
9.45k
13.49k (x1.43)
Test#3 (Generic, ZIP)
3.39k
3.21k (x0.95)
Test#1 (Memory)
2.39k
3.9k (x1.63)
TOTAL
24.01k
29.36k (x1.22)

Multithread

7400K

i3-7100U
Test#1 (Integers)
13.5k
18.33k (x1.36)
Test#2 (FP)
12.17k
31.08k (x2.56)
Test#3 (Generic, ZIP)
5.96k
7.5k (x1.26)
Test#1 (Memory)
2.65k
3.61k (x1.36)
TOTAL
34.28k
60.52k (x1.77)

Performance/W
7400K
i3-7100U
Test#1 (Integers)
208 points/W
1222 points/W
Test#2 (FP)
187 points/W
2072 points/W
Test#3 (Generic, ZIP)
92 points/W
500 points/W
Test#1 (Memory)
41 points/W
240 points/W
TOTAL
527 points/W
4035 points/W

Performance/GHz
7400K
i3-7100U
Test#1 (Integers)
2252 points/GHz
3652 points/GHz
Test#2 (FP)
2423 points/GHz
5622 points/GHz
Test#3 (Generic, ZIP)
869 points/GHz
1337 points/GHz
Test#1 (Memory)
612 points/GHz
1624 points/GHz
TOTAL
6156 points/GHz
12235 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