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Core i7-950 vs Core 2 Duo E6550


Description
The i7-950 is based on Westmere architecture while the E6550 is based on Core.

Using the multithread performance as a reference, the i7-950 gets a score of 76.3 k points while the E6550 gets 16.4 k points.

Summarizing, the i7-950 is 4.7 times faster than the E6550 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
6fb
Core
Bloomfield
Conroe
Architecture
Base frecuency
3.066 GHz
2.333 GHz
Boost frecuency
3.333 GHz
2.333 GHz
Socket
LGA 1366
LGA 775
Cores/Threads
4/4
2/2
TDP
130 W
65 W
Cache L1 (d+i)
4x32+4x32 kB
2x32+2x32 kB
Cache L2
256 kB
4096 kB
Cache L3
8192 kB
0 kB
Date
June 2009
July 2007
Mean monothread perf.
19.46k points
10.31k points
Mean multithread perf.
76.29k points
16.38k 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
i7-950
E6550
Test#1 (Integers)
8.01k
2.7k (x0.34)
Test#2 (FP)
5.38k
2.43k (x0.45)
Test#3 (Generic, ZIP)
3.11k
2.44k (x0.78)
Test#1 (Memory)
2.96k
2.74k (x0.92)
TOTAL
19.46k
10.31k (x0.53)

Multithread

i7-950

E6550
Test#1 (Integers)
31.53k
5.39k (x0.17)
Test#2 (FP)
24.16k
4.85k (x0.2)
Test#3 (Generic, ZIP)
15.84k
4.89k (x0.31)
Test#1 (Memory)
4.75k
1.26k (x0.26)
TOTAL
76.29k
16.38k (x0.21)

Performance/W
i7-950
E6550
Test#1 (Integers)
243 points/W
83 points/W
Test#2 (FP)
186 points/W
75 points/W
Test#3 (Generic, ZIP)
122 points/W
75 points/W
Test#1 (Memory)
37 points/W
19 points/W
TOTAL
587 points/W
252 points/W

Performance/GHz
i7-950
E6550
Test#1 (Integers)
2403 points/GHz
1156 points/GHz
Test#2 (FP)
1614 points/GHz
1041 points/GHz
Test#3 (Generic, ZIP)
934 points/GHz
1047 points/GHz
Test#1 (Memory)
888 points/GHz
1173 points/GHz
TOTAL
5839 points/GHz
4417 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