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E Series E-450 vs Atom N450


Description
The E-450 is based on Bobcat architecture while the N450 is based on Bonnell.

Using the multithread performance as a reference, the E-450 gets a score of 9.7 k points while the N450 gets 4.6 k points.

Summarizing, the E-450 is 2.1 times faster than the N450 . To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
500f20
106ca
Core
Zacate
Pineview
Architecture
Base frecuency
1.65 GHz
1.667 GHz
Socket
Socket FT1
BGA 559
Cores/Threads
2/2
1 /2
TDP
18 W
6 W
Cache L1 (d+i)
kB
64 kB
Cache L2
2x512 kB
512 kB
Date
August 2011
December 2009
Mean monothread perf.
6.51k points
3.42k points
Mean multithread perf.
9.65k 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
E-450
N450
Test#1 (Integers)
0.85k
0.37k (x0.43)
Test#2 (FP)
2.47k
0.77k (x0.31)
Test#3 (Generic, ZIP)
1.47k
0.79k (x0.54)
Test#1 (Memory)
0.7k
0.63k (x0.9)
TOTAL
5.49k
2.55k (x0.47)

Multithread

E-450

N450
Test#1 (Integers)
1.24k
0.56k (x0.45)
Test#2 (FP)
3.43k
1.25k (x0.37)
Test#3 (Generic, ZIP)
2.32k
1.09k (x0.47)
Test#1 (Memory)
0.69k
0.64k (x0.94)
TOTAL
7.68k
3.55k (x0.46)

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
E-450
N450
Test#1 (Integers)
1.82k
1.08k (x0.59)
Test#2 (FP)
2.57k
0.84k (x0.33)
Test#3 (Generic, ZIP)
1.46k
0.94k (x0.64)
Test#1 (Memory)
0.66k
0.56k (x0.85)
TOTAL
6.51k
3.42k (x0.52)

Multithread

E-450

N450
Test#1 (Integers)
3.16k
1.32k (x0.42)
Test#2 (FP)
4.19k
1.33k (x0.32)
Test#3 (Generic, ZIP)
1.73k
1.29k (x0.75)
Test#1 (Memory)
0.58k
0.63k (x1.09)
TOTAL
9.65k
4.58k (x0.47)

Performance/W
E-450
N450
Test#1 (Integers)
176 points/W
220 points/W
Test#2 (FP)
233 points/W
222 points/W
Test#3 (Generic, ZIP)
96 points/W
216 points/W
Test#1 (Memory)
32 points/W
105 points/W
TOTAL
536 points/W
763 points/W

Performance/GHz
E-450
N450
Test#1 (Integers)
1105 points/GHz
647 points/GHz
Test#2 (FP)
1557 points/GHz
504 points/GHz
Test#3 (Generic, ZIP)
883 points/GHz
563 points/GHz
Test#1 (Memory)
401 points/GHz
337 points/GHz
TOTAL
3947 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