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Core i5-2400 vs i3-3120M


Description
The i5-2400 is based on Sandy Bridge architecture while the i3-3120M is based on Ivy Bridge.

Using the multithread performance as a reference, the i5-2400 gets a score of 84.4 k points while the i3-3120M gets 47.8 k points.

Summarizing, the i5-2400 is 1.8 times faster than the i3-3120M . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
306a9
Core
Sandy Bridge
Architecture
Base frecuency
3.1 GHz
2.5 GHz
Boost frecuency
3.4 GHz
2.5 GHz
Socket
LGA 1155
BGA1023
Cores/Threads
4/4
2 /2
TDP
95 W
35 W
Cache L1 (d+i)
4x32+x4x32 kB
32+32 kB
Cache L2
4x256 kB
256 kB
Cache L3
6144 kB
3072 kB
Date
January 2011
September 2012
Mean monothread perf.
25.49k points
22.12k points
Mean multithread perf.
84.36k points
47.78k 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
i5-2400
i3-3120M
Test#1 (Integers)
9.16k
7.92k (x0.86)
Test#2 (FP)
8.2k
7.96k (x0.97)
Test#3 (Generic, ZIP)
3.95k
3.09k (x0.78)
Test#1 (Memory)
4.17k
3.15k (x0.75)
TOTAL
25.49k
22.12k (x0.87)

Multithread

i5-2400

i3-3120M
Test#1 (Integers)
34.74k
16.82k (x0.48)
Test#2 (FP)
31.07k
19k (x0.61)
Test#3 (Generic, ZIP)
14.86k
7.7k (x0.52)
Test#1 (Memory)
3.69k
4.25k (x1.15)
TOTAL
84.36k
47.78k (x0.57)

Performance/W
i5-2400
i3-3120M
Test#1 (Integers)
366 points/W
481 points/W
Test#2 (FP)
327 points/W
543 points/W
Test#3 (Generic, ZIP)
156 points/W
220 points/W
Test#1 (Memory)
39 points/W
121 points/W
TOTAL
888 points/W
1365 points/W

Performance/GHz
i5-2400
i3-3120M
Test#1 (Integers)
2695 points/GHz
3169 points/GHz
Test#2 (FP)
2411 points/GHz
3182 points/GHz
Test#3 (Generic, ZIP)
1163 points/GHz
1236 points/GHz
Test#1 (Memory)
1228 points/GHz
1259 points/GHz
TOTAL
7497 points/GHz
8847 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