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Pentium D 925 vs Core 2 Duo T5500


Description
The 925 is based on NetBurst architecture while the T5500 is based on Core.

Using the multithread performance as a reference, the 925 gets a score of 14 k points while the T5500 gets 11.8 k points.

Summarizing, the 925 is 1.2 times faster than the T5500 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f65
6f2
Core
Presler
Merom
Architecture
Base frecuency
3 GHz
1.667 GHz
Boost frecuency
3 GHz
1.66 GHz
Socket
LGA 775
Socket M
Cores/Threads
2/2
2/2
TDP
95 W
35 W
Cache L1 (d+i)
16+8 kB
32+32 kB
Cache L2
4096 kB
2048 kB
Date
October 2006
July 2006

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
T5500
Test#1 (Integers)
1521
1585 (4.20%)
Test#2 (FP)
2948
1667 (-43.46%)
Test#3 (Generic, ZIP)
1506
1672 (11.04%)
Test#1 (Memory)
816
963 (18.03%)
TOTAL
6791
5887 (-13.31%)

Multithread

925

T5500
Test#1 (Integers)
2982
3180 (6.65%)
Test#2 (FP)
5616
3281 (-41.58%)
Test#3 (Generic, ZIP)
2870
3235 (12.71%)
Test#1 (Memory)
819
1043 (27.36%)
TOTAL
12287
10738 (-12.60%)

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
T5500
Test#1 (Integers)
2059
1930 (-6.25%)
Test#2 (FP)
3316
1732 (-47.78%)
Test#3 (Generic, ZIP)
1522
1741 (14.39%)
Test#1 (Memory)
799
1009 (26.23%)
TOTAL
7696
6412 (-16.69%)

Multithread

925

T5500
Test#1 (Integers)
3995
3840 (-3.88%)
Test#2 (FP)
6318
3432 (-45.69%)
Test#3 (Generic, ZIP)
2905
3454 (18.89%)
Test#1 (Memory)
808
1080 (33.62%)
TOTAL
14027
11806 (-15.83%)

Performance/W
925
T5500
Test#1 (Integers)
42 points/W
110 points/W
Test#2 (FP)
67 points/W
98 points/W
Test#3 (Generic, ZIP)
31 points/W
99 points/W
Test#1 (Memory)
9 points/W
31 points/W
TOTAL
148 points/W
337 points/W

Performance/GHz
925
T5500
Test#1 (Integers)
686 points/GHz
1163 points/GHz
Test#2 (FP)
1105 points/GHz
1043 points/GHz
Test#3 (Generic, ZIP)
507 points/GHz
1049 points/GHz
Test#1 (Memory)
266 points/GHz
608 points/GHz
TOTAL
2565 points/GHz
3863 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