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Core i5-2300 vs i3-2120


Description
Both models i5-2300 and i3-2120 are based on Sandy Bridge architecture.

"Sandy Bridge codename was originally ""Gesher"". The development began in 2005 and four years later, the first Sandy Bridge CPU was presented. The most prominent features are Intel Turbo Boost 2.0, AES encryption and SHA-1 hashing acceleration, Advanced Vector Extensions (AVX) 256-bit instruction set and the ability to have up to 8 physical cores or 16 logical cores through Hyper-Threading."

Using the multithread performance as a reference, the i5-2300 gets a score of 79.5 k points while the i3-2120 gets 53.5 k points.

Summarizing, the i5-2300 is 1.5 times faster than the i3-2120 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
206a7
Core
Sandy Bridge
Sandy Bridge
Architecture
Base frecuency
2.8 GHz
3.3 GHz
Boost frecuency
3.1 GHz
3.3 GHz
Socket
LGA 1155
LGA 1155
Cores/Threads
4/4
2/2
TDP
95 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
6144 kB
3072 kB
Date
May 2011
February 2012
Mean monothread perf.
24.53k points
24.23k points
Mean multithread perf.
79.46k points
53.48k 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
i5-2300
i3-2120
Test#1 (Integers)
2.52k
2.7k (x1.07)
Test#2 (FP)
7.01k
7.4k (x1.06)
Test#3 (Generic, ZIP)
3.77k
3.82k (x1.01)
Test#1 (Memory)
4.22k
2.99k (x0.71)
TOTAL
17.53k
16.91k (x0.96)

Multithread

i5-2300

i3-2120
Test#1 (Integers)
9.46k
6.36k (x0.67)
Test#2 (FP)
26.25k
16.87k (x0.64)
Test#3 (Generic, ZIP)
14.1k
9.4k (x0.67)
Test#1 (Memory)
3.13k
2.91k (x0.93)
TOTAL
52.93k
35.53k (x0.67)

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
i5-2300
i3-2120
Test#1 (Integers)
8.65k
9.07k (x1.05)
Test#2 (FP)
7.8k
8.25k (x1.06)
Test#3 (Generic, ZIP)
3.92k
3.99k (x1.02)
Test#1 (Memory)
4.16k
2.92k (x0.7)
TOTAL
24.53k
24.23k (x0.99)

Multithread

i5-2300

i3-2120
Test#1 (Integers)
32.45k
20.86k (x0.64)
Test#2 (FP)
29.25k
19.51k (x0.67)
Test#3 (Generic, ZIP)
14.64k
10.09k (x0.69)
Test#1 (Memory)
3.12k
3.03k (x0.97)
TOTAL
79.46k
53.48k (x0.67)

Performance/W
i5-2300
i3-2120
Test#1 (Integers)
342 points/W
321 points/W
Test#2 (FP)
308 points/W
300 points/W
Test#3 (Generic, ZIP)
154 points/W
155 points/W
Test#1 (Memory)
33 points/W
47 points/W
TOTAL
836 points/W
823 points/W

Performance/GHz
i5-2300
i3-2120
Test#1 (Integers)
2791 points/GHz
2748 points/GHz
Test#2 (FP)
2516 points/GHz
2499 points/GHz
Test#3 (Generic, ZIP)
1263 points/GHz
1210 points/GHz
Test#1 (Memory)
1343 points/GHz
886 points/GHz
TOTAL
7912 points/GHz
7343 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