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Core i5-2450M vs FX 8120


Description
The i5-2450M is based on Sandy Bridge architecture while the 8120 is based on Bulldozer.

Using the multithread performance as a reference, the i5-2450M gets a score of 43.4 k points while the 8120 gets 70.8 k points.

Summarizing, the 8120 is 1.6 times faster than the i5-2450M . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
206a7
600f12
Core
Sandy Bridge
Zambezi
Architecture
Base frecuency
2.5 GHz
3.1 GHz
Boost frecuency
3.1 GHz
4 GHz
Socket
Socket G2 (988B)
Socket AM3+
Cores/Threads
2/4
8/8
TDP
35 W
125 W
Cache L1 (d+i)
2x32+2x32 kB
4x64+8x16 kB
Cache L2
2x256 kB
4x2048 kB
Cache L3
3072 kB
8192 kB
Date
January 2012
October 2011
Mean monothread perf.
22.85k points
23.5k points
Mean multithread perf.
43.44k points
70.78k 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
i5-2450M
8120
Test#1 (Integers)
8.39k
9.31k (x1.11)
Test#2 (FP)
7.65k
6.85k (x0.9)
Test#3 (Generic, ZIP)
3.64k
2.77k (x0.76)
Test#1 (Memory)
3.17k
4.58k (x1.44)
TOTAL
22.85k
23.5k (x1.03)

Multithread

i5-2450M

8120
Test#1 (Integers)
17.96k
25.84k (x1.44)
Test#2 (FP)
14.71k
28.49k (x1.94)
Test#3 (Generic, ZIP)
7.51k
13.84k (x1.84)
Test#1 (Memory)
3.26k
2.61k (x0.8)
TOTAL
43.44k
70.78k (x1.63)

Performance/W
i5-2450M
8120
Test#1 (Integers)
513 points/W
207 points/W
Test#2 (FP)
420 points/W
228 points/W
Test#3 (Generic, ZIP)
215 points/W
111 points/W
Test#1 (Memory)
93 points/W
21 points/W
TOTAL
1241 points/W
566 points/W

Performance/GHz
i5-2450M
8120
Test#1 (Integers)
2706 points/GHz
2327 points/GHz
Test#2 (FP)
2468 points/GHz
1712 points/GHz
Test#3 (Generic, ZIP)
1174 points/GHz
693 points/GHz
Test#1 (Memory)
1022 points/GHz
1144 points/GHz
TOTAL
7370 points/GHz
5876 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