Core 2 Duo P8400 vs Celeron N2840
Description
The P8400 is based on Core architecture while the N2840 is based on Silvermont.
Using the multithread performance as a reference, the P8400 gets a score of 21 k points while the N2840 gets 16.8 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 P8400 gets a score of 21 k points while the N2840 gets 16.8 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
10676
30678
Core
Peryn-3M
Bay Trail-M
Base frecuency
2.267 GHz
2.167 GHz
Boost frecuency
2.267 GHz
2.58 GHz
Socket
Socket P
BGA1170
Cores/Threads
2/2
2/2
TDP
25 W
7,5 W
Cache L1 (d+i)
2x32 kB
2x32+2x24 kB
Cache L2
3072 kB
1024 kB
Date
July 2008
July 2014
Mean monothread perf.
11.38k points
10.36k points
Mean multithread perf.
21.02k points
16.79k 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
P8400
N2840
Test#1 (Integers)
2.43k
4.8k (x1.98)
Test#2 (FP)
5.4k
2.47k (x0.46)
Test#3 (Generic, ZIP)
2.13k
1.86k (x0.88)
Test#1 (Memory)
1.43k
1.22k (x0.85)
TOTAL
11.38k
10.36k (x0.91)
Multithread
P8400
N2840
Test#1 (Integers)
4.81k
8.24k (x1.71)
Test#2 (FP)
10.58k
4.19k (x0.4)
Test#3 (Generic, ZIP)
4.18k
3.05k (x0.73)
Test#1 (Memory)
1.45k
1.32k (x0.91)
TOTAL
21.02k
16.79k (x0.8)
Performance/W
P8400
N2840
Test#1 (Integers)
193 points/W
1177 points/W
Test#2 (FP)
423 points/W
598 points/W
Test#3 (Generic, ZIP)
167 points/W
436 points/W
Test#1 (Memory)
58 points/W
188 points/W
TOTAL
841 points/W
2399 points/W
Performance/GHz
P8400
N2840
Test#1 (Integers)
1071 points/GHz
1861 points/GHz
Test#2 (FP)
2383 points/GHz
958 points/GHz
Test#3 (Generic, ZIP)
938 points/GHz
723 points/GHz
Test#1 (Memory)
629 points/GHz
472 points/GHz
TOTAL
5022 points/GHz
4015 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