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Celeron N2840 vs Atom x5-Z8350


Description
The N2840 is based on Silvermont architecture while the x5-Z8350 is based on Airmont.

Using the multithread performance as a reference, the N2840 gets a score of 16.8 k points while the x5-Z8350 gets 18 k points.

Summarizing, the x5-Z8350 is 1.1 times faster than the N2840. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
30678
406c4
Core
Bay Trail-M
Cherry Trail
Architecture
Base frecuency
2.167 GHz
1.44 GHz
Boost frecuency
2.58 GHz
1.72 GHz
Socket
BGA1170
BGA592
Cores/Threads
2/2
4/4
TDP
7,5 W
2 W
Cache L1 (d+i)
2x32+2x24 kB
4x32+4x24 kB
Cache L2
1024 kB
2x1024 kB
Date
July 2014
February 2016
Mean monothread perf.
10.36k points
6.67k points
Mean multithread perf.
16.79k points
17.99k 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
x5-Z8350
Test#1 (Integers)
4.8k
3.12k (x0.65)
Test#2 (FP)
2.47k
1.77k (x0.72)
Test#3 (Generic, ZIP)
1.86k
1.13k (x0.6)
Test#1 (Memory)
1.22k
0.66k (x0.54)
TOTAL
10.36k
6.67k (x0.64)

Multithread

N2840

x5-Z8350
Test#1 (Integers)
8.24k
8.49k (x1.03)
Test#2 (FP)
4.19k
5.26k (x1.26)
Test#3 (Generic, ZIP)
3.05k
3.3k (x1.08)
Test#1 (Memory)
1.32k
0.94k (x0.71)
TOTAL
16.79k
17.99k (x1.07)

Performance/W
N2840
x5-Z8350
Test#1 (Integers)
1177 points/W
4246 points/W
Test#2 (FP)
598 points/W
2629 points/W
Test#3 (Generic, ZIP)
436 points/W
1649 points/W
Test#1 (Memory)
188 points/W
470 points/W
TOTAL
2399 points/W
8995 points/W

Performance/GHz
N2840
x5-Z8350
Test#1 (Integers)
1861 points/GHz
1812 points/GHz
Test#2 (FP)
958 points/GHz
1031 points/GHz
Test#3 (Generic, ZIP)
723 points/GHz
655 points/GHz
Test#1 (Memory)
472 points/GHz
382 points/GHz
TOTAL
4015 points/GHz
3880 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