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Core i5-2520M vs Xeon E3-1225


Description
Both models i5-2520M and E3-1225 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 i5-2520M gets a score of 34.2 k points while the E3-1225 gets 44.8 k points.

Summarizing, the E3-1225 is 1.3 times faster than the i5-2520M . 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
2.5 GHz
3.1 GHz
Boost frecuency
3.2 GHz
3.4 GHz
Socket
BGA1023
LGA 1155
Cores/Threads
2/2
4/4
TDP
35 W
95 W
Cache L1 (d+i)
2x32+2x32 kB
4x32+4x32 kB
Cache L2
2x256 kB
4x256 kB
Cache L3
3072 kB
6144 kB
Date
February 2011
April 2011
Mean monothread perf.
24.13k points
23.94k points
Mean multithread perf.
50.23k points
68.97k 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
i5-2520M
E3-1225
Test#1 (Integers)
2.69k
2.63k (x0.98)
Test#2 (FP)
7.28k
7.2k (x0.99)
Test#3 (Generic, ZIP)
3.84k
3.71k (x0.97)
Test#1 (Memory)
3.05k
2.55k (x0.84)
TOTAL
16.86k
16.08k (x0.95)

Multithread

i5-2520M

E3-1225
Test#1 (Integers)
6.08k
8.23k (x1.35)
Test#2 (FP)
16.15k
22.82k (x1.41)
Test#3 (Generic, ZIP)
8.87k
11.68k (x1.32)
Test#1 (Memory)
3.06k
2.12k (x0.69)
TOTAL
34.15k
44.85k (x1.31)

Performance/W
i5-2520M
E3-1225
Test#1 (Integers)
174 points/W
87 points/W
Test#2 (FP)
461 points/W
240 points/W
Test#3 (Generic, ZIP)
253 points/W
123 points/W
Test#1 (Memory)
87 points/W
22 points/W
TOTAL
976 points/W
472 points/W

Performance/GHz
i5-2520M
E3-1225
Test#1 (Integers)
840 points/GHz
772 points/GHz
Test#2 (FP)
2275 points/GHz
2117 points/GHz
Test#3 (Generic, ZIP)
1200 points/GHz
1091 points/GHz
Test#1 (Memory)
954 points/GHz
750 points/GHz
TOTAL
5269 points/GHz
4731 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