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Pentium 4 HT 521 vs Atom N450


Description
The 521 is based on NetBurst architecture while the N450 is based on Bonnell.

Using the multithread performance as a reference, the 521 gets a score of 8.4 k points while the N450 gets 4.6 k points.

Summarizing, the 521 is 1.8 times faster than the N450 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f49
106ca
Core
Prescott
Pineview
Architecture
Base frecuency
2.8 GHz
1.667 GHz
Socket
LGA 775
BGA 559
Cores/Threads
1/2
1 /2
TDP
84 W
6 W
Cache L1 (d+i)
8+8 kB
64 kB
Cache L2
1024 kB
512 kB
Date
2004
December 2009
Mean monothread perf.
7.48k points
3.42k points
Mean multithread perf.
8.42k points
4.58k 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
521
N450
Test#1 (Integers)
1.45k
0.37k (x0.25)
Test#2 (FP)
2.6k
0.77k (x0.3)
Test#3 (Generic, ZIP)
1.26k
0.79k (x0.62)
Test#1 (Memory)
0.91k
0.63k (x0.69)
TOTAL
6.22k
2.55k (x0.41)

Multithread

521

N450
Test#1 (Integers)
1.2k
0.56k (x0.47)
Test#2 (FP)
3.04k
1.25k (x0.41)
Test#3 (Generic, ZIP)
1.48k
1.09k (x0.73)
Test#1 (Memory)
0.9k
0.64k (x0.72)
TOTAL
6.62k
3.55k (x0.54)

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
521
N450
Test#1 (Integers)
1.96k
1.08k (x0.55)
Test#2 (FP)
3.12k
0.84k (x0.27)
Test#3 (Generic, ZIP)
1.49k
0.94k (x0.63)
Test#1 (Memory)
0.91k
0.56k (x0.62)
TOTAL
7.48k
3.42k (x0.46)

Multithread

521

N450
Test#1 (Integers)
1.77k
1.32k (x0.75)
Test#2 (FP)
3.96k
1.33k (x0.34)
Test#3 (Generic, ZIP)
1.8k
1.29k (x0.72)
Test#1 (Memory)
0.9k
0.63k (x0.7)
TOTAL
8.42k
4.58k (x0.54)

Performance/W
521
N450
Test#1 (Integers)
21 points/W
220 points/W
Test#2 (FP)
47 points/W
222 points/W
Test#3 (Generic, ZIP)
21 points/W
216 points/W
Test#1 (Memory)
11 points/W
105 points/W
TOTAL
100 points/W
763 points/W

Performance/GHz
521
N450
Test#1 (Integers)
701 points/GHz
647 points/GHz
Test#2 (FP)
1113 points/GHz
504 points/GHz
Test#3 (Generic, ZIP)
533 points/GHz
563 points/GHz
Test#1 (Memory)
325 points/GHz
337 points/GHz
TOTAL
2672 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. 3.11.4