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Core i7-950 vs Xeon E5506


Description
The i7-950 is based on Westmere architecture while the E5506 is based on Nehalem.

Using the multithread performance as a reference, the i7-950 gets a score of 76.3 k points while the E5506 gets 90.4 k points.

Summarizing, the E5506 is 1.2 times faster than the i7-950 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
106a5
Core
Bloomfield
Gainestown
Architecture
Base frecuency
3.066 GHz
2.133 GHz
Boost frecuency
3.333 GHz
2.133 GHz
Socket
LGA 1366
LGA 1366
Cores/Threads
4/4
4 /4
TDP
130 W
80 W
Cache L1 (d+i)
4x32+4x32 kB
64 kB
Cache L2
256 kB
256 kB
Cache L3
8192 kB
4096 kB
Date
June 2009
March 2009
Mean monothread perf.
19.46k points
9.97k points
Mean multithread perf.
76.29k points
90.45k 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
E5506
Test#1 (Integers)
8.01k
4.48k (x0.56)
Test#2 (FP)
5.38k
2.99k (x0.56)
Test#3 (Generic, ZIP)
3.11k
1.81k (x0.58)
Test#1 (Memory)
2.96k
0.69k (x0.23)
TOTAL
19.46k
9.97k (x0.51)

Multithread

i7-950

E5506
Test#1 (Integers)
31.53k
41k (x1.3)
Test#2 (FP)
24.16k
28.17k (x1.17)
Test#3 (Generic, ZIP)
15.84k
17.4k (x1.1)
Test#1 (Memory)
4.75k
3.88k (x0.82)
TOTAL
76.29k
90.45k (x1.19)

Performance/W
i7-950
E5506
Test#1 (Integers)
243 points/W
513 points/W
Test#2 (FP)
186 points/W
352 points/W
Test#3 (Generic, ZIP)
122 points/W
217 points/W
Test#1 (Memory)
37 points/W
48 points/W
TOTAL
587 points/W
1131 points/W

Performance/GHz
i7-950
E5506
Test#1 (Integers)
2403 points/GHz
2099 points/GHz
Test#2 (FP)
1614 points/GHz
1404 points/GHz
Test#3 (Generic, ZIP)
934 points/GHz
847 points/GHz
Test#1 (Memory)
888 points/GHz
325 points/GHz
TOTAL
5839 points/GHz
4675 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