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Celeron N2840 vs E Series E-450


Description
The N2840 is based on Silvermont architecture while the E-450 is based on Bobcat.

Using the multithread performance as a reference, the N2840 gets a score of 16.8 k points while the E-450 gets 9.7 k points.

Summarizing, the N2840 is 1.7 times faster than the E-450. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
30678
500f20
Core
Bay Trail-M
Zacate
Architecture
Base frecuency
2.167 GHz
1.65 GHz
Boost frecuency
2.58 GHz
1.65 GHz
Socket
BGA1170
Socket FT1
Cores/Threads
2/2
2/2
TDP
7,5 W
18 W
Cache L1 (d+i)
2x32+2x24 kB
kB
Cache L2
1024 kB
2x512 kB
Date
July 2014
August 2011
Mean monothread perf.
10.36k points
6.51k points
Mean multithread perf.
16.79k points
9.65k points

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
N2840
E-450
Test#1 (Integers)
4.8k
1.82k (x0.38)
Test#2 (FP)
2.47k
2.57k (x1.04)
Test#3 (Generic, ZIP)
1.86k
1.46k (x0.78)
Test#1 (Memory)
1.22k
0.66k (x0.54)
TOTAL
10.36k
6.51k (x0.63)

Multithread

N2840

E-450
Test#1 (Integers)
8.24k
3.16k (x0.38)
Test#2 (FP)
4.19k
4.19k (x1)
Test#3 (Generic, ZIP)
3.05k
1.73k (x0.57)
Test#1 (Memory)
1.32k
0.58k (x0.44)
TOTAL
16.79k
9.65k (x0.57)

Performance/W
N2840
E-450
Test#1 (Integers)
1177 points/W
176 points/W
Test#2 (FP)
598 points/W
233 points/W
Test#3 (Generic, ZIP)
436 points/W
96 points/W
Test#1 (Memory)
188 points/W
32 points/W
TOTAL
2399 points/W
536 points/W

Performance/GHz
N2840
E-450
Test#1 (Integers)
1861 points/GHz
1105 points/GHz
Test#2 (FP)
958 points/GHz
1557 points/GHz
Test#3 (Generic, ZIP)
723 points/GHz
883 points/GHz
Test#1 (Memory)
472 points/GHz
401 points/GHz
TOTAL
4015 points/GHz
3947 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