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Celeron D 331 vs Pentium D 820


Description
Both models 331 and 820 are based on NetBurst architecture.



Using the multithread performance as a reference, the 331 gets a score of 0 k points while the 820 gets 14.1 k points.

Summarizing, the 820 is INF times faster than the 331. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f41
f44
Core
Prescott-256
Smithfield
Architecture
Base frecuency
2.667 GHz
2.8 GHz
Socket
LGA775
LGA 775
Cores/Threads
1/1
2/2
TDP
84 W
130 W
Cache L1 (d+i)
16 kB
16+8 kB
Cache L2
256 kB
2048 kB
Date
Jun 2005
May 2005

Non-optimized benchmark
The benchmark in Mode 0 (FPU) measures cpu performance with non-optimized software. It uses the basic µinstructions from the i386 architecture with the i387 floating point unit. This mode is compatible with all CPUs so it's practical to compare very different CPUs
Monothread
331
820
Test#1 (Integers)
1379
1459 (5.82%)
Test#2 (FP)
2459
2598 (5.66%)
Test#3 (Generic, ZIP)
1194
1264 (5.84%)
Test#1 (Memory)
615
911 (48.14%)
TOTAL
5647
6232 (10.36%)

Multithread

331

820
Test#1 (Integers)
0
2925 (inf%)
Test#2 (FP)
0
5192 (inf%)
Test#3 (Generic, ZIP)
0
2526 (inf%)
Test#1 (Memory)
0
942 (inf%)
TOTAL
0
11585 (inf%)

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
331
820
Test#1 (Integers)
1856
1932 (4.10%)
Test#2 (FP)
2957
3114 (5.29%)
Test#3 (Generic, ZIP)
1414
1495 (5.69%)
Test#1 (Memory)
619
907 (46.48%)
TOTAL
6847
7447 (8.78%)

Multithread

331

820
Test#1 (Integers)
0
3921 (inf%)
Test#2 (FP)
0
6227 (inf%)
Test#3 (Generic, ZIP)
0
2989 (inf%)
Test#1 (Memory)
0
937 (inf%)
TOTAL
0
14074 (inf%)

Performance/W
331
820
Test#1 (Integers)
0 points/W
30 points/W
Test#2 (FP)
0 points/W
48 points/W
Test#3 (Generic, ZIP)
0 points/W
23 points/W
Test#1 (Memory)
0 points/W
7 points/W
TOTAL
0 points/W
108 points/W

Performance/GHz
331
820
Test#1 (Integers)
696 points/GHz
690 points/GHz
Test#2 (FP)
1109 points/GHz
1112 points/GHz
Test#3 (Generic, ZIP)
530 points/GHz
534 points/GHz
Test#1 (Memory)
232 points/GHz
324 points/GHz
TOTAL
2567 points/GHz
2660 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. 3.7.8