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Atom N450 vs Pentium 4 HT 531


Description
The N450 is based on Bonnell architecture while the 531 is based on NetBurst.

Using the multithread performance as a reference, the N450 gets a score of 4.6 k points while the 531 gets 8.9 k points.

Summarizing, the 531 is 1.9 times faster than the N450 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
106ca
f41
Core
Pineview
Prescott
Architecture
Base frecuency
1.667 GHz
3 GHz
Socket
BGA 559
LGA 775
Cores/Threads
1 /2
1/2
TDP
6 W
84 W
Cache L1 (d+i)
64 kB
8+8 kB
Cache L2
512 kB
1024 kB
Date
December 2009
2004
Mean monothread perf.
3.42k points
7.95k points
Mean multithread perf.
4.58k points
8.95k 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
N450
531
Test#1 (Integers)
0.37k
1.56k (x4.23)
Test#2 (FP)
0.77k
2.78k (x3.6)
Test#3 (Generic, ZIP)
0.79k
1.35k (x1.72)
Test#1 (Memory)
0.63k
0.91k (x1.45)
TOTAL
2.55k
6.6k (x2.58)

Multithread

N450

531
Test#1 (Integers)
0.56k
1.29k (x2.29)
Test#2 (FP)
1.25k
3.26k (x2.6)
Test#3 (Generic, ZIP)
1.09k
1.6k (x1.47)
Test#1 (Memory)
0.64k
0.9k (x1.39)
TOTAL
3.55k
7.05k (x1.99)

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
N450
531
Test#1 (Integers)
1.08k
2.1k (x1.95)
Test#2 (FP)
0.84k
3.33k (x3.97)
Test#3 (Generic, ZIP)
0.94k
1.6k (x1.7)
Test#1 (Memory)
0.56k
0.91k (x1.63)
TOTAL
3.42k
7.95k (x2.33)

Multithread

N450

531
Test#1 (Integers)
1.32k
1.89k (x1.43)
Test#2 (FP)
1.33k
4.23k (x3.17)
Test#3 (Generic, ZIP)
1.29k
1.93k (x1.49)
Test#1 (Memory)
0.63k
0.89k (x1.42)
TOTAL
4.58k
8.95k (x1.95)

Performance/W
N450
531
Test#1 (Integers)
220 points/W
23 points/W
Test#2 (FP)
222 points/W
50 points/W
Test#3 (Generic, ZIP)
216 points/W
23 points/W
Test#1 (Memory)
105 points/W
11 points/W
TOTAL
763 points/W
106 points/W

Performance/GHz
N450
531
Test#1 (Integers)
647 points/GHz
701 points/GHz
Test#2 (FP)
504 points/GHz
1111 points/GHz
Test#3 (Generic, ZIP)
563 points/GHz
534 points/GHz
Test#1 (Memory)
337 points/GHz
305 points/GHz
TOTAL
2051 points/GHz
2650 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