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Core i3-550 vs Core 2 Duo E8400


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

Using the multithread performance as a reference, the i3-550 gets a score of 41.5 k points while the E8400 gets 26.9 k points.

Summarizing, the i3-550 is 1.5 times faster than the E8400 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
20655
1067a
Core
Clarkdale
Wolfdale
Architecture
Base frecuency
3.2 GHz
3 GHz
Socket
LGA 1156
LGA 775
Cores/Threads
2/2
2/2
TDP
73 W
65 W
Cache L1 (d+i)
32+32 kB
32+32 kB
Cache L2
256 kB
6144 kB
Cache L3
4096 kB
0 kB
Date
May 2010
January 2008

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
i3-550
E8400
Test#1 (Integers)
7919
3263 (-58.80%)
Test#2 (FP)
5373
7184 (33.72%)
Test#3 (Generic, ZIP)
3181
2841 (-10.67%)
Test#1 (Memory)
2720
3622 (33.16%)
TOTAL
19192
16910 (-11.89%)

Multithread

i3-550

E8400
Test#1 (Integers)
17202
6302 (-63.37%)
Test#2 (FP)
12718
13636 (7.22%)
Test#3 (Generic, ZIP)
8714
5225 (-40.04%)
Test#1 (Memory)
2861
1720 (-39.89%)
TOTAL
41495
26882 (-35.22%)

Performance/W
i3-550
E8400
Test#1 (Integers)
236 points/W
97 points/W
Test#2 (FP)
174 points/W
210 points/W
Test#3 (Generic, ZIP)
119 points/W
80 points/W
Test#1 (Memory)
39 points/W
26 points/W
TOTAL
568 points/W
414 points/W

Performance/GHz
i3-550
E8400
Test#1 (Integers)
2475 points/GHz
1088 points/GHz
Test#2 (FP)
1679 points/GHz
2395 points/GHz
Test#3 (Generic, ZIP)
994 points/GHz
947 points/GHz
Test#1 (Memory)
850 points/GHz
1207 points/GHz
TOTAL
5998 points/GHz
5637 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. 3.7.8