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Core i3-2100 vs A6 7400K


Description
The i3-2100 is based on Sandy Bridge architecture while the 7400K is based on Steamroller.

Using the multithread performance as a reference, the i3-2100 gets a score of 40.1 k points while the 7400K gets 34.3 k points.

Summarizing, the i3-2100 is 1.2 times faster than the 7400K. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
630f01
Core
Kaveri
Architecture
Base frecuency
3.1 GHz
3.5 GHz
Boost frecuency
3.1 GHz
3.9 GHz
Socket
LGA 1155
Socket FM2+
Cores/Threads
2/4
2/2
TDP
65 W
65 W
Cache L1 (d+i)
2x32+2x32 kB
2x16+64 kB
Cache L2
2x256 kB
1024 kB
Cache L3
3072 kB
0 kB
Date
February 2011
July 2014
Mean monothread perf.
19.52k points
24.01k points
Mean multithread perf.
40.1k points
34.28k 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
i3-2100
7400K
Test#1 (Integers)
7.07k
8.78k (x1.24)
Test#2 (FP)
7.16k
9.45k (x1.32)
Test#3 (Generic, ZIP)
2.62k
3.39k (x1.29)
Test#1 (Memory)
2.67k
2.39k (x0.89)
TOTAL
19.52k
24.01k (x1.23)

Multithread

i3-2100

7400K
Test#1 (Integers)
14.19k
13.5k (x0.95)
Test#2 (FP)
15.19k
12.17k (x0.8)
Test#3 (Generic, ZIP)
7.26k
5.96k (x0.82)
Test#1 (Memory)
3.46k
2.65k (x0.77)
TOTAL
40.1k
34.28k (x0.85)

Performance/W
i3-2100
7400K
Test#1 (Integers)
218 points/W
208 points/W
Test#2 (FP)
234 points/W
187 points/W
Test#3 (Generic, ZIP)
112 points/W
92 points/W
Test#1 (Memory)
53 points/W
41 points/W
TOTAL
617 points/W
527 points/W

Performance/GHz
i3-2100
7400K
Test#1 (Integers)
2279 points/GHz
2252 points/GHz
Test#2 (FP)
2311 points/GHz
2423 points/GHz
Test#3 (Generic, ZIP)
845 points/GHz
869 points/GHz
Test#1 (Memory)
862 points/GHz
612 points/GHz
TOTAL
6297 points/GHz
6156 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