Pentium D 820 vs Celeron N2840
Description
The 820 is based on NetBurst architecture while the N2840 is based on Silvermont.
Using the multithread performance as a reference, the 820 gets a score of 14.1 k points while the N2840 gets 16.8 k points.
Summarizing, the N2840 is 1.2 times faster than the 820. To get a proper comparison between both models, take a look to the data shown below.
Using the multithread performance as a reference, the 820 gets a score of 14.1 k points while the N2840 gets 16.8 k points.
Summarizing, the N2840 is 1.2 times faster than the 820. To get a proper comparison between both models, take a look to the data shown below.
Specs
CPUID
f44
30678
Core
Smithfield
Bay Trail-M
Base frecuency
2.8 GHz
2.167 GHz
Boost frecuency
2.8 GHz
2.58 GHz
Socket
LGA 775
BGA1170
Cores/Threads
2/2
2/2
TDP
130 W
7,5 W
Cache L1 (d+i)
16+8 kB
2x32+2x24 kB
Cache L2
2048 kB
1024 kB
Date
May 2005
July 2014
Mean monothread perf.
7.45k points
10.36k points
Mean multithread perf.
14.07k 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
820
N2840
Test#1 (Integers)
1.93k
4.8k (x2.49)
Test#2 (FP)
3.11k
2.47k (x0.79)
Test#3 (Generic, ZIP)
1.49k
1.86k (x1.25)
Test#1 (Memory)
0.91k
1.22k (x1.34)
TOTAL
7.45k
10.36k (x1.39)
Multithread
820
N2840
Test#1 (Integers)
3.92k
8.24k (x2.1)
Test#2 (FP)
6.23k
4.19k (x0.67)
Test#3 (Generic, ZIP)
2.99k
3.05k (x1.02)
Test#1 (Memory)
0.94k
1.32k (x1.4)
TOTAL
14.07k
16.79k (x1.19)
Performance/W
820
N2840
Test#1 (Integers)
30 points/W
1177 points/W
Test#2 (FP)
48 points/W
598 points/W
Test#3 (Generic, ZIP)
23 points/W
436 points/W
Test#1 (Memory)
7 points/W
188 points/W
TOTAL
108 points/W
2399 points/W
Performance/GHz
820
N2840
Test#1 (Integers)
690 points/GHz
1861 points/GHz
Test#2 (FP)
1112 points/GHz
958 points/GHz
Test#3 (Generic, ZIP)
534 points/GHz
723 points/GHz
Test#1 (Memory)
324 points/GHz
472 points/GHz
TOTAL
2660 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