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Xeon E3-1225 vs Core i5-2520M


Description
Both models E3-1225 and i5-2520M 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 E3-1225 gets a score of 44.8 k points while the i5-2520M gets 34.2 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
3.1 GHz
2.5 GHz
Boost frecuency
3.4 GHz
3.2 GHz
Socket
LGA 1155
BGA1023
Cores/Threads
4/4
2/2
TDP
95 W
35 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
4x256 kB
2x256 kB
Cache L3
6144 kB
3072 kB
Date
April 2011
February 2011
Mean monothread perf.
23.94k points
24.13k points
Mean multithread perf.
68.97k points
50.23k 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
E3-1225
i5-2520M
Test#1 (Integers)
2.63k
2.69k (x1.02)
Test#2 (FP)
7.2k
7.28k (x1.01)
Test#3 (Generic, ZIP)
3.71k
3.84k (x1.04)
Test#1 (Memory)
2.55k
3.05k (x1.2)
TOTAL
16.08k
16.86k (x1.05)

Multithread

E3-1225

i5-2520M
Test#1 (Integers)
8.23k
6.08k (x0.74)
Test#2 (FP)
22.82k
16.15k (x0.71)
Test#3 (Generic, ZIP)
11.68k
8.87k (x0.76)
Test#1 (Memory)
2.12k
3.06k (x1.44)
TOTAL
44.85k
34.15k (x0.76)

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

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