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Pentium D 950 vs 820


Description
Both models 950 and 820 are based on NetBurst architecture.



Using the multithread performance as a reference, the 950 gets a score of 7.3 k points while the 820 gets 14.1 k points.

Summarizing, the 820 is 1.9 times faster than the 950. To get a proper comparison between both models, take a look to the data shown below.

Specs
CPUID
f64
f44
Core
Presler
Smithfield
Architecture
Base frecuency
3.4 GHz
2.8 GHz
Socket
LGA 775
LGA 775
Cores/Threads
2/2
2/2
TDP
130 W
130 W
Cache L1 (d+i)
16+8 kB
16+8 kB
Cache L2
4096 kB
2048 kB
Date
January 2006
May 2005
Mean monothread perf.
8.73k points
7.45k points
Mean multithread perf.
7.34k points
14.07k 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
950
820
Test#1 (Integers)
2.36k
1.93k (x0.82)
Test#2 (FP)
3.74k
3.11k (x0.83)
Test#3 (Generic, ZIP)
1.76k
1.49k (x0.85)
Test#1 (Memory)
0.86k
0.91k (x1.06)
TOTAL
8.73k
7.45k (x0.85)

Multithread

950

820
Test#1 (Integers)
4.34k
3.92k (x0.9)
Test#2 (FP)
1.91k
6.23k (x3.27)
Test#3 (Generic, ZIP)
0.75k
2.99k (x3.98)
Test#1 (Memory)
0.35k
0.94k (x2.69)
TOTAL
7.34k
14.07k (x1.92)

Performance/W
950
820
Test#1 (Integers)
33 points/W
30 points/W
Test#2 (FP)
15 points/W
48 points/W
Test#3 (Generic, ZIP)
6 points/W
23 points/W
Test#1 (Memory)
3 points/W
7 points/W
TOTAL
56 points/W
108 points/W

Performance/GHz
950
820
Test#1 (Integers)
695 points/GHz
690 points/GHz
Test#2 (FP)
1101 points/GHz
1112 points/GHz
Test#3 (Generic, ZIP)
518 points/GHz
534 points/GHz
Test#1 (Memory)
253 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. 3.11.4