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Core i3-550 vs i7-950


Description
Both models i3-550 and i7-950 are based on Westmere architecture.



Using the multithread performance as a reference, the i3-550 gets a score of 38.8 k points while the i7-950 gets 76.3 k points.

Summarizing, the i7-950 is 2 times faster than the i3-550 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
20655
106a5
Core
Clarkdale
Bloomfield
Architecture
Base frecuency
3.2 GHz
3.066 GHz
Boost frecuency
3.2 GHz
3.333 GHz
Socket
LGA 1156
LGA 1366
Cores/Threads
2/2
4/4
TDP
73 W
130 W
Cache L1 (d+i)
32+32 kB
4x32+4x32 kB
Cache L2
256 kB
256 kB
Cache L3
4096 kB
8192 kB
Date
May 2010
June 2009
Mean monothread perf.
18.69k points
19.46k points
Mean multithread perf.
38.8k points
76.29k 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
i3-550
i7-950
Test#1 (Integers)
7.83k
8.01k (x1.02)
Test#2 (FP)
5.3k
5.38k (x1.02)
Test#3 (Generic, ZIP)
3.14k
3.11k (x0.99)
Test#1 (Memory)
2.43k
2.96k (x1.22)
TOTAL
18.69k
19.46k (x1.04)

Multithread

i3-550

i7-950
Test#1 (Integers)
16.25k
31.53k (x1.94)
Test#2 (FP)
12.12k
24.16k (x1.99)
Test#3 (Generic, ZIP)
8.01k
15.84k (x1.98)
Test#1 (Memory)
2.42k
4.75k (x1.97)
TOTAL
38.8k
76.29k (x1.97)

Performance/W
i3-550
i7-950
Test#1 (Integers)
223 points/W
243 points/W
Test#2 (FP)
166 points/W
186 points/W
Test#3 (Generic, ZIP)
110 points/W
122 points/W
Test#1 (Memory)
33 points/W
37 points/W
TOTAL
531 points/W
587 points/W

Performance/GHz
i3-550
i7-950
Test#1 (Integers)
2446 points/GHz
2403 points/GHz
Test#2 (FP)
1655 points/GHz
1614 points/GHz
Test#3 (Generic, ZIP)
982 points/GHz
934 points/GHz
Test#1 (Memory)
759 points/GHz
888 points/GHz
TOTAL
5842 points/GHz
5839 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