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Celeron N2840 vs A9 9420


Description
The N2840 is based on Silvermont architecture while the 9420 is based on Excavator.

Using the multithread performance as a reference, the N2840 gets a score of 16.8 k points while the 9420 gets 28.9 k points.

Summarizing, the 9420 is 1.7 times faster than the N2840. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
30678
670f00
Core
Bay Trail-M
Stoney Ridge
Architecture
Base frecuency
2.167 GHz
3 GHz
Boost frecuency
2.58 GHz
3.6 GHz
Socket
BGA1170
Micro-BGA
Cores/Threads
2/2
2/2
TDP
7,5 W
15 W
Cache L1 (d+i)
2x32+2x24 kB
96+2x32 kB
Cache L2
1024 kB
1024 kB
Date
July 2014
April 2017
Mean monothread perf.
10.36k points
33.09k points
Mean multithread perf.
16.79k points
46.33k 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
9420
Test#1 (Integers)
4.8k
8.41k (x1.75)
Test#2 (FP)
2.47k
11.48k (x4.64)
Test#3 (Generic, ZIP)
1.86k
3.29k (x1.76)
Test#1 (Memory)
1.22k
2.24k (x1.84)
TOTAL
10.36k
25.41k (x2.45)

Multithread

N2840

9420
Test#1 (Integers)
8.24k
11.25k (x1.37)
Test#2 (FP)
4.19k
13.69k (x3.27)
Test#3 (Generic, ZIP)
3.05k
2.09k (x0.68)
Test#1 (Memory)
1.32k
1.87k (x1.42)
TOTAL
16.79k
28.89k (x1.72)

Performance/W
N2840
9420
Test#1 (Integers)
1177 points/W
750 points/W
Test#2 (FP)
598 points/W
912 points/W
Test#3 (Generic, ZIP)
436 points/W
139 points/W
Test#1 (Memory)
188 points/W
125 points/W
TOTAL
2399 points/W
1926 points/W

Performance/GHz
N2840
9420
Test#1 (Integers)
1861 points/GHz
2336 points/GHz
Test#2 (FP)
958 points/GHz
3188 points/GHz
Test#3 (Generic, ZIP)
723 points/GHz
913 points/GHz
Test#1 (Memory)
472 points/GHz
621 points/GHz
TOTAL
4015 points/GHz
7058 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