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Xeon W3550 vs E5506


Description
The W3550 is based on architecture while the E5506 is based on Nehalem.

Using the multithread performance as a reference, the W3550 gets a score of 73.2 k points while the E5506 gets 90.4 k points.

Summarizing, the E5506 is 1.2 times faster than the W3550 . 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)
64 kB
64 kB
Cache L2
256 kB
256 kB
Cache L3
8192 kB
4096 kB
Date
August 2009
March 2009
Mean monothread perf.
20.24k points
9.97k points
Mean multithread perf.
73.21k points
90.45k points

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
W3550
E5506
Test#1 (Integers)
2.3k
1.21k (x0.52)
Test#2 (FP)
5.21k
2.75k (x0.53)
Test#3 (Generic, ZIP)
3.31k
1.94k (x0.59)
Test#1 (Memory)
3.09k
0.78k (x0.25)
TOTAL
13.92k
6.68k (x0.48)

Multithread

W3550

E5506
Test#1 (Integers)
8.75k
12.25k (x1.4)
Test#2 (FP)
19.8k
25.55k (x1.29)
Test#3 (Generic, ZIP)
12.38k
17.1k (x1.38)
Test#1 (Memory)
6.17k
5.01k (x0.81)
TOTAL
47.09k
59.9k (x1.27)

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
W3550
E5506
Test#1 (Integers)
8.34k
4.48k (x0.54)
Test#2 (FP)
5.56k
2.99k (x0.54)
Test#3 (Generic, ZIP)
3.26k
1.81k (x0.55)
Test#1 (Memory)
3.08k
0.69k (x0.22)
TOTAL
20.24k
9.97k (x0.49)

Multithread

W3550

E5506
Test#1 (Integers)
32.5k
41k (x1.26)
Test#2 (FP)
21.59k
28.17k (x1.3)
Test#3 (Generic, ZIP)
12.85k
17.4k (x1.35)
Test#1 (Memory)
6.27k
3.88k (x0.62)
TOTAL
73.21k
90.45k (x1.24)

Performance/W
W3550
E5506
Test#1 (Integers)
250 points/W
513 points/W
Test#2 (FP)
166 points/W
352 points/W
Test#3 (Generic, ZIP)
99 points/W
217 points/W
Test#1 (Memory)
48 points/W
48 points/W
TOTAL
563 points/W
1131 points/W

Performance/GHz
W3550
E5506
Test#1 (Integers)
2502 points/GHz
2099 points/GHz
Test#2 (FP)
1669 points/GHz
1404 points/GHz
Test#3 (Generic, ZIP)
978 points/GHz
847 points/GHz
Test#1 (Memory)
925 points/GHz
325 points/GHz
TOTAL
6073 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