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Core 2 Duo E8400 vs Core i3-550


Description
The E8400 is based on Core architecture while the i3-550 is based on Westmere.

Using the multithread performance as a reference, the E8400 gets a score of 27.1 k points while the i3-550 gets 38.8 k points.

Summarizing, the i3-550 is 1.4 times faster than the E8400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
1067a
20655
Core
Wolfdale
Clarkdale
Architecture
Base frecuency
3 GHz
3.2 GHz
Socket
LGA 775
LGA 1156
Cores/Threads
2/2
2/2
TDP
65 W
73 W
Cache L1 (d+i)
2x32+2x32 kB
32+32 kB
Cache L2
6144 kB
256 kB
Cache L3
0 kB
4096 kB
Date
January 2008
May 2010
Mean monothread perf.
17.28k points
18.69k points
Mean multithread perf.
27.11k points
38.8k points

SSE3 optimized benchmark
The benchmark in mode I (SSE) is optimized for the use of SIMD instructions with 128 bits register and the SSE set up to version 3. Nearly every modern CPU has support for this mode.
Monothread
E8400
i3-550
Test#1 (Integers)
3.3k
7.83k (x2.37)
Test#2 (FP)
7.28k
5.3k (x0.73)
Test#3 (Generic, ZIP)
2.88k
3.14k (x1.09)
Test#1 (Memory)
3.83k
2.43k (x0.63)
TOTAL
17.28k
18.69k (x1.08)

Multithread

E8400

i3-550
Test#1 (Integers)
6.3k
16.25k (x2.58)
Test#2 (FP)
13.71k
12.12k (x0.88)
Test#3 (Generic, ZIP)
5.32k
8.01k (x1.51)
Test#1 (Memory)
1.78k
2.42k (x1.36)
TOTAL
27.11k
38.8k (x1.43)

Performance/W
E8400
i3-550
Test#1 (Integers)
97 points/W
223 points/W
Test#2 (FP)
211 points/W
166 points/W
Test#3 (Generic, ZIP)
82 points/W
110 points/W
Test#1 (Memory)
27 points/W
33 points/W
TOTAL
417 points/W
531 points/W

Performance/GHz
E8400
i3-550
Test#1 (Integers)
1099 points/GHz
2446 points/GHz
Test#2 (FP)
2426 points/GHz
1655 points/GHz
Test#3 (Generic, ZIP)
959 points/GHz
982 points/GHz
Test#1 (Memory)
1278 points/GHz
759 points/GHz
TOTAL
5762 points/GHz
5842 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