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Pentium D 925 vs Atom N450


Description
The 925 is based on NetBurst architecture while the N450 is based on Bonnell.

Using the multithread performance as a reference, the 925 gets a score of 14 k points while the N450 gets 4.6 k points.

Summarizing, the 925 is 3 times faster than the N450 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f65
106ca
Core
Presler
Pineview
Architecture
Base frecuency
3 GHz
1.667 GHz
Socket
LGA 775
BGA 559
Cores/Threads
2/2
1 /2
TDP
95 W
6 W
Cache L1 (d+i)
16+8 kB
64 kB
Cache L2
4096 kB
512 kB
Date
October 2006
December 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
N450
Test#1 (Integers)
1521
369 (-75.74%)
Test#2 (FP)
2948
772 (-73.81%)
Test#3 (Generic, ZIP)
1506
788 (-47.68%)
Test#1 (Memory)
816
626 (-23.34%)
TOTAL
6791
2555 (-62.38%)

Multithread

925

N450
Test#1 (Integers)
2982
562 (-81.14%)
Test#2 (FP)
5616
1254 (-77.67%)
Test#3 (Generic, ZIP)
2870
1086 (-62.14%)
Test#1 (Memory)
819
643 (-21.42%)
TOTAL
12287
3547 (-71.13%)

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
N450
Test#1 (Integers)
2059
1078 (-47.65%)
Test#2 (FP)
3316
840 (-74.67%)
Test#3 (Generic, ZIP)
1522
939 (-38.30%)
Test#1 (Memory)
799
562 (-29.73%)
TOTAL
7696
3418 (-55.58%)

Multithread

925

N450
Test#1 (Integers)
3995
1322 (-66.91%)
Test#2 (FP)
6318
1333 (-78.90%)
Test#3 (Generic, ZIP)
2905
1294 (-55.46%)
Test#1 (Memory)
808
629 (-22.21%)
TOTAL
14027
4578 (-67.36%)

Performance/W
925
N450
Test#1 (Integers)
42 points/W
220 points/W
Test#2 (FP)
67 points/W
222 points/W
Test#3 (Generic, ZIP)
31 points/W
216 points/W
Test#1 (Memory)
9 points/W
105 points/W
TOTAL
148 points/W
763 points/W

Performance/GHz
925
N450
Test#1 (Integers)
686 points/GHz
647 points/GHz
Test#2 (FP)
1105 points/GHz
504 points/GHz
Test#3 (Generic, ZIP)
507 points/GHz
563 points/GHz
Test#1 (Memory)
266 points/GHz
337 points/GHz
TOTAL
2565 points/GHz
2051 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