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Core 2 Duo T5500 vs Pentium D 925


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

Using the multithread performance as a reference, the T5500 gets a score of 11.8 k points while the 925 gets 14 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
6f2
f65
Core
Merom
Presler
Architecture
Base frecuency
1.667 GHz
3 GHz
Boost frecuency
1.66 GHz
3 GHz
Socket
Socket M
LGA 775
Cores/Threads
2/2
2/2
TDP
35 W
95 W
Cache L1 (d+i)
32+32 kB
16+8 kB
Cache L2
2048 kB
4096 kB
Date
July 2006
October 2006
Mean monothread perf.
6.41k points
7.7k points
Mean multithread perf.
11.81k points
14.03k 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
T5500
925
Test#1 (Integers)
1.58k
1.52k (x0.96)
Test#2 (FP)
1.67k
2.95k (x1.77)
Test#3 (Generic, ZIP)
1.67k
1.51k (x0.9)
Test#1 (Memory)
0.96k
0.82k (x0.85)
TOTAL
5.89k
6.79k (x1.15)

Multithread

T5500

925
Test#1 (Integers)
3.18k
2.98k (x0.94)
Test#2 (FP)
3.28k
5.62k (x1.71)
Test#3 (Generic, ZIP)
3.23k
2.87k (x0.89)
Test#1 (Memory)
1.04k
0.82k (x0.79)
TOTAL
10.74k
12.29k (x1.14)

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
T5500
925
Test#1 (Integers)
1.93k
2.06k (x1.07)
Test#2 (FP)
1.73k
3.32k (x1.91)
Test#3 (Generic, ZIP)
1.74k
1.52k (x0.87)
Test#1 (Memory)
1.01k
0.8k (x0.79)
TOTAL
6.41k
7.7k (x1.2)

Multithread

T5500

925
Test#1 (Integers)
3.84k
4k (x1.04)
Test#2 (FP)
3.43k
6.32k (x1.84)
Test#3 (Generic, ZIP)
3.45k
2.91k (x0.84)
Test#1 (Memory)
1.08k
0.81k (x0.75)
TOTAL
11.81k
14.03k (x1.19)

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

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