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Pentium D 925 vs Xeon E5506


Description
The 925 is based on NetBurst architecture while the E5506 is based on Nehalem.

Using the multithread performance as a reference, the 925 gets a score of 14 k points while the E5506 gets 90.4 k points.

Summarizing, the E5506 is 6.5 times faster than the 925. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f65
106a5
Core
Presler
Gainestown
Architecture
Base frecuency
3 GHz
2.133 GHz
Boost frecuency
3 GHz
2.133 GHz
Socket
LGA 775
LGA 1366
Cores/Threads
2/2
4 /4
TDP
95 W
80 W
Cache L1 (d+i)
16+8 kB
64 kB
Cache L2
4096 kB
256 kB
Cache L3
0 kB
4096 kB
Date
October 2006
March 2009

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
925
E5506
Test#1 (Integers)
1521
1206 (-20.72%)
Test#2 (FP)
2948
2754 (-6.59%)
Test#3 (Generic, ZIP)
1506
1941 (28.89%)
Test#1 (Memory)
816
781 (-4.37%)
TOTAL
6791
6681 (-1.62%)

Multithread

925

E5506
Test#1 (Integers)
2982
12246 (310.71%)
Test#2 (FP)
5616
25545 (354.85%)
Test#3 (Generic, ZIP)
2870
17097 (495.74%)
Test#1 (Memory)
819
5008 (511.63%)
TOTAL
12287
59896 (387.49%)

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
925
E5506
Test#1 (Integers)
2059
4477 (117.43%)
Test#2 (FP)
3316
2994 (-9.71%)
Test#3 (Generic, ZIP)
1522
1808 (18.76%)
Test#1 (Memory)
799
692 (-13.35%)
TOTAL
7696
9971 (29.56%)

Multithread

925

E5506
Test#1 (Integers)
3995
41004 (926.29%)
Test#2 (FP)
6318
28167 (345.79%)
Test#3 (Generic, ZIP)
2905
17399 (498.86%)
Test#1 (Memory)
808
3879 (379.92%)
TOTAL
14027
90449 (544.80%)

Performance/W
925
E5506
Test#1 (Integers)
42 points/W
513 points/W
Test#2 (FP)
67 points/W
352 points/W
Test#3 (Generic, ZIP)
31 points/W
217 points/W
Test#1 (Memory)
9 points/W
48 points/W
TOTAL
148 points/W
1131 points/W

Performance/GHz
925
E5506
Test#1 (Integers)
686 points/GHz
2099 points/GHz
Test#2 (FP)
1105 points/GHz
1404 points/GHz
Test#3 (Generic, ZIP)
507 points/GHz
847 points/GHz
Test#1 (Memory)
266 points/GHz
325 points/GHz
TOTAL
2565 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. 3.7.8