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Intel Pentium D 945

Front view of Intel Pentium D 945
Front view of Intel Core i3 3220

Intel Core i3 3220

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Differences What are the advantages of each

Front view of Intel Pentium D 945

Reasons to consider the
Intel Pentium D 945

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Much more l2 cache 4 MB vs 0.5 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 2 MB/core vs 0.25 MB/core 8x more l2 cache per core
Much better overclocked clock speed (Air) 4.22 GHz vs 3.43 GHz Around 25% better overclocked clock speed (Air)
Higher clock speed 3.4 GHz vs 3.3 GHz Around 5% higher clock speed
Much better overclocked clock speed (Water) 4.59 GHz vs 3.46 GHz More than 30% better overclocked clock speed (Water)
Front view of Intel Core i3 3220

Reasons to consider the
Intel Core i3 3220

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Much newer manufacturing process 22 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much better geekbench 2 (32-bit) score 5,351 vs 1,571 Around 3.5x better geekbench 2 (32-bit) score
More threads 4 vs 2 Twice as many threads
Much better performance per watt 2.69 pt/W vs 1.14 pt/W More than 2.2x better performance per watt
Much lower typical power consumption 44.69W vs 77.19W More than 40% lower typical power consumption
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Higher Maximum operating temperature 65.3 °C vs 63.4 °C Around 5% higher Maximum operating temperature
Newer Sep, 2012 vs Jul, 2006 Release date over 6 years later
Much lower annual home energy cost 13.25 $/year vs 22.89 $/year More than 40% lower annual home energy cost
Much lower annual commercial energy cost 48.18 $/year vs 83.22 $/year More than 40% lower annual commercial energy cost

Benchmarks Real world tests of Pentium D 945 vs Core i3 3220

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Pentium D 945
1,678
Core i3 3220
5,399

GeekBench 3 (Single core) Data courtesy Primate Labs

Pentium D 945
932
Core i3 3220
2,501

GeekBench 3 (AES single core) Data courtesy Primate Labs

Pentium D 945
122,800 MB/s
Core i3 3220
173,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Pentium D 945
1,571
Core i3 3220
5,351

GeekBench (64-bit) Data courtesy Primate Labs

Pentium D 945
2,830
Core i3 3220
5,707

GeekBench

Pentium D 945
2,830
Core i3 3220
8,919

Specifications Full list of technical specs

summary

 Pentium D 945  vs
Core i3 3220 
Clock speed 3.4 GHz 3.3 GHz
Cores Dual core Dual core
Socket type
LGA 775
LGA 1155

features
Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support No Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption
TDP 95W 55W
Annual home energy cost 22.89 $/year 13.25 $/year
Annual commercial energy cost 83.22 $/year 48.18 $/year
Performance per watt 1.14 pt/W 2.69 pt/W
Typical power consumption 77.19W 44.69W

bus
Architecture FSB DMI
Number of links 1 1

details

 Pentium D 945  vs
Core i3 3220 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 4 MB 0.5 MB
L2 cache per core 2 MB/core 0.25 MB/core
Manufacture process 65 nm 22 nm
Max CPUs 1 1
Clock multiplier 17 33
Operating temperature Unknown - 63.4°C Unknown - 65.3°C

overclocking
Overclock popularity 9 50
Overclocked clock speed 4.22 GHz 3.43 GHz
Overclocked clock speed (Water) 4.59 GHz 3.46 GHz
PassMark (Overclocked) 1,049.4 3,775.1
Overclocked clock speed (Air) 4.22 GHz 3.43 GHz

integrated graphics
GPU None GPU
Label N/A Intel® HD Graphics 2500
Number of displays supported N/A 3
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,050 MHz

memory controller
Memory controller Built-in Built-in
Supports ECC No No
Intel Pentium D 945
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Intel Core i3 3220
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