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Xeon E5506 vs Pentium 4 HT 521


Description
The E5506 is based on Nehalem architecture while the 521 is based on NetBurst.

Using the multithread performance as a reference, the E5506 gets a score of 90.4 k points while the 521 gets 8.4 k points.

Summarizing, the E5506 is 10.8 times faster than the 521. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106a5
f49
Core
Gainestown
Prescott
Architecture
Base frecuency
2.133 GHz
2.8 GHz
Boost frecuency
2.133 GHz
2.8 GHz
Socket
LGA 1366
LGA 775
Cores/Threads
4 /4
1/2
TDP
80 W
84 W
Cache L1 (d+i)
64 kB
8+8 kB
Cache L2
256 kB
1024 kB
Cache L3
4096 kB
0 kB
Date
March 2009
2004

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
E5506
521
Test#1 (Integers)
1206
1450 (20.22%)
Test#2 (FP)
2754
2598 (-5.66%)
Test#3 (Generic, ZIP)
1941
1262 (-34.95%)
Test#1 (Memory)
781
907 (16.17%)
TOTAL
6681
6217 (-6.95%)

Multithread

E5506

521
Test#1 (Integers)
12246
1201 (-90.19%)
Test#2 (FP)
25545
3042 (-88.09%)
Test#3 (Generic, ZIP)
17097
1482 (-91.33%)
Test#1 (Memory)
5008
898 (-82.07%)
TOTAL
59896
6623 (-88.94%)

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
E5506
521
Test#1 (Integers)
4477
1962 (-56.18%)
Test#2 (FP)
2994
3117 (4.11%)
Test#3 (Generic, ZIP)
1808
1494 (-17.37%)
Test#1 (Memory)
692
910 (31.34%)
TOTAL
9971
7482 (-24.97%)

Multithread

E5506

521
Test#1 (Integers)
41004
1767 (-95.69%)
Test#2 (FP)
28167
3957 (-85.95%)
Test#3 (Generic, ZIP)
17399
1803 (-89.64%)
Test#1 (Memory)
3879
897 (-76.86%)
TOTAL
90449
8425 (-90.69%)

Performance/W
E5506
521
Test#1 (Integers)
513 points/W
21 points/W
Test#2 (FP)
352 points/W
47 points/W
Test#3 (Generic, ZIP)
217 points/W
21 points/W
Test#1 (Memory)
48 points/W
11 points/W
TOTAL
1131 points/W
100 points/W

Performance/GHz
E5506
521
Test#1 (Integers)
2099 points/GHz
701 points/GHz
Test#2 (FP)
1404 points/GHz
1113 points/GHz
Test#3 (Generic, ZIP)
847 points/GHz
533 points/GHz
Test#1 (Memory)
325 points/GHz
325 points/GHz
TOTAL
4675 points/GHz
2672 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