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Differences What are the advantages of each

Front view of Intel Pentium D 830

Reasons to consider the
Intel Pentium D 830

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Front view of Intel Pentium D 820

Reasons to consider the
Intel Pentium D 820

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CPUBoss is not aware of any important advantages of the 820 vs the 830.

Benchmarks Real world tests of Pentium D 830 vs 820

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Pentium D 830
108,300 MB/s
Pentium D 820
100,200 MB/s

Specifications Full list of technical specs

summary

Pentium D 830  vs
820 
Clock speed 3 GHz 2.8 GHz
Cores Dual core Dual core
Socket type
LGA 775

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support No No
Instruction set extensions
MMX
SSE
SSE2
SSE3
Supports dynamic frequency scaling Yes No

power consumption

TDP 130W 95W
Annual home energy cost 31.32 $/year 22.89 $/year
Annual commercial energy cost 113.88 $/year 83.22 $/year
Performance per watt 0.6 pt/W 0.94 pt/W
Typical power consumption 105.63W 77.19W

memory controller

Memory controller Built-in Built-in
Supports ECC No No

details

Pentium D 830  vs
820 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 90 nm
Transistor count 230,000,000 230,000,000
Max CPUs 1 1
Clock multiplier 15 14
Voltage range 1.2 - 1.4V 1.2 - 1.4V
Operating temperature Unknown - 69.8°C Unknown - 64.1°C

overclocking

Overclocked clock speed 3.55 GHz 3.52 GHz
Overclocked clock speed (Water) 4.5 GHz 4.25 GHz
Overclocked clock speed (Air) 3.55 GHz 3.52 GHz

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 800 MHz 800 MHz
Intel Pentium D 830
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Intel Pentium D 820
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