Celeron N2840 vs Core 2 Duo P8400
Description
The N2840 is based on Silvermont architecture while the P8400 is based on Core.
Using the multithread performance as a reference, the N2840 gets a score of 16.8 k points while the P8400 gets 21 k points.
Summarizing, the P8400 is 1.3 times faster than the N2840. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the N2840 gets a score of 16.8 k points while the P8400 gets 21 k points.
Summarizing, the P8400 is 1.3 times faster than the N2840. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
30678
10676
Core
Bay Trail-M
Peryn-3M
Base frecuency
2.167 GHz
2.267 GHz
Boost frecuency
2.58 GHz
2.267 GHz
Socket
BGA1170
Socket P
Cores/Threads
2/2
2/2
TDP
7,5 W
25 W
Cache L1 (d+i)
2x32+2x24 kB
2x32 kB
Cache L2
1024 kB
3072 kB
Date
July 2014
July 2008
Mean monothread perf.
10.36k points
11.38k points
Mean multithread perf.
16.79k points
21.02k 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
P8400
Test#1 (Integers)
4.8k
2.43k (x0.51)
Test#2 (FP)
2.47k
5.4k (x2.18)
Test#3 (Generic, ZIP)
1.86k
2.13k (x1.14)
Test#1 (Memory)
1.22k
1.43k (x1.17)
TOTAL
10.36k
11.38k (x1.1)
Multithread
N2840
P8400
Test#1 (Integers)
8.24k
4.81k (x0.58)
Test#2 (FP)
4.19k
10.58k (x2.53)
Test#3 (Generic, ZIP)
3.05k
4.18k (x1.37)
Test#1 (Memory)
1.32k
1.45k (x1.1)
TOTAL
16.79k
21.02k (x1.25)
Performance/W
N2840
P8400
Test#1 (Integers)
1177 points/W
193 points/W
Test#2 (FP)
598 points/W
423 points/W
Test#3 (Generic, ZIP)
436 points/W
167 points/W
Test#1 (Memory)
188 points/W
58 points/W
TOTAL
2399 points/W
841 points/W
Performance/GHz
N2840
P8400
Test#1 (Integers)
1861 points/GHz
1071 points/GHz
Test#2 (FP)
958 points/GHz
2383 points/GHz
Test#3 (Generic, ZIP)
723 points/GHz
938 points/GHz
Test#1 (Memory)
472 points/GHz
629 points/GHz
TOTAL
4015 points/GHz
5022 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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
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.
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]
Test#2 (FP) [points vs time]
Test#3 (Generic, ZIP) [points vs time]
Test#1 (Memory) [points vs time]
Hardlimit Benchmark Central - Ver. 3.11.4