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Pentium 4 HT 531 vs Atom N270


Description
The 531 is based on NetBurst architecture while the N270 is based on Bonnell.

Using the multithread performance as a reference, the 531 gets a score of 8.9 k points while the N270 gets 4.4 k points.

Summarizing, the 531 is 2 times faster than the N270 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f41
106c2
Core
Prescott
Diamondville
Architecture
Base frecuency
3 GHz
1.6 GHz
Socket
LGA 775
BGA 437
Cores/Threads
1/2
1 /2
TDP
84 W
3 W
Cache L1 (d+i)
8+8 kB
64 kB
Cache L2
1024 kB
512 kB
Date
2004
June 2008
Mean monothread perf.
7.95k points
3.18k points
Mean multithread perf.
8.95k points
4.43k 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
531
N270
Test#1 (Integers)
1.56k
0.37k (x0.23)
Test#2 (FP)
2.78k
0.74k (x0.27)
Test#3 (Generic, ZIP)
1.35k
0.73k (x0.54)
Test#1 (Memory)
0.91k
0.44k (x0.49)
TOTAL
6.6k
2.28k (x0.35)

Multithread

531

N270
Test#1 (Integers)
1.29k
0.55k (x0.43)
Test#2 (FP)
3.26k
1.26k (x0.39)
Test#3 (Generic, ZIP)
1.6k
1.09k (x0.68)
Test#1 (Memory)
0.9k
0.47k (x0.52)
TOTAL
7.05k
3.37k (x0.48)

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
531
N270
Test#1 (Integers)
2.1k
1.02k (x0.49)
Test#2 (FP)
3.33k
0.85k (x0.26)
Test#3 (Generic, ZIP)
1.6k
0.93k (x0.58)
Test#1 (Memory)
0.91k
0.37k (x0.41)
TOTAL
7.95k
3.18k (x0.4)

Multithread

531

N270
Test#1 (Integers)
1.89k
1.31k (x0.69)
Test#2 (FP)
4.23k
1.36k (x0.32)
Test#3 (Generic, ZIP)
1.93k
1.33k (x0.69)
Test#1 (Memory)
0.89k
0.42k (x0.47)
TOTAL
8.95k
4.43k (x0.5)

Performance/W
531
N270
Test#1 (Integers)
23 points/W
437 points/W
Test#2 (FP)
50 points/W
454 points/W
Test#3 (Generic, ZIP)
23 points/W
445 points/W
Test#1 (Memory)
11 points/W
140 points/W
TOTAL
106 points/W
1477 points/W

Performance/GHz
531
N270
Test#1 (Integers)
701 points/GHz
638 points/GHz
Test#2 (FP)
1111 points/GHz
534 points/GHz
Test#3 (Generic, ZIP)
534 points/GHz
580 points/GHz
Test#1 (Memory)
305 points/GHz
234 points/GHz
TOTAL
2650 points/GHz
1986 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