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Celeron N2840 vs N3150


Description
The N2840 is based on Silvermont architecture while the N3150 is based on Airmont.

Using the multithread performance as a reference, the N2840 gets a score of 16.8 k points while the N3150 gets 31.8 k points.

Summarizing, the N3150 is 1.9 times faster than the N2840. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
30678
406c3
Core
Bay Trail-M
Braswell
Architecture
Base frecuency
2.167 GHz
1.6 GHz
Boost frecuency
2.58 GHz
2.08 GHz
Socket
BGA1170
BGA1170
Cores/Threads
2/2
4/4
TDP
7,5 W
6 W
Cache L1 (d+i)
2x32+2x24 kB
4x32+4x24 kB
Cache L2
1024 kB
2x1024 kB
Cache L3
0 kB
kB
Date
July 2014
March 2015
Mean monothread perf.
10.36k points
9.21k points
Mean multithread perf.
16.79k points
31.8k 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
N3150
Test#1 (Integers)
4.8k
3.91k (x0.81)
Test#2 (FP)
2.47k
2.29k (x0.93)
Test#3 (Generic, ZIP)
1.86k
1.57k (x0.84)
Test#1 (Memory)
1.22k
1.44k (x1.18)
TOTAL
10.36k
9.21k (x0.89)

Multithread

N2840

N3150
Test#1 (Integers)
8.24k
14.78k (x1.79)
Test#2 (FP)
4.19k
8.62k (x2.06)
Test#3 (Generic, ZIP)
3.05k
5.84k (x1.91)
Test#1 (Memory)
1.32k
2.57k (x1.95)
TOTAL
16.79k
31.8k (x1.89)

Performance/W
N2840
N3150
Test#1 (Integers)
1177 points/W
2463 points/W
Test#2 (FP)
598 points/W
1437 points/W
Test#3 (Generic, ZIP)
436 points/W
973 points/W
Test#1 (Memory)
188 points/W
428 points/W
TOTAL
2399 points/W
5300 points/W

Performance/GHz
N2840
N3150
Test#1 (Integers)
1861 points/GHz
1880 points/GHz
Test#2 (FP)
958 points/GHz
1102 points/GHz
Test#3 (Generic, ZIP)
723 points/GHz
755 points/GHz
Test#1 (Memory)
472 points/GHz
692 points/GHz
TOTAL
4015 points/GHz
4429 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