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Intel Pentium D 945

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Front view of Intel Pentium D 945

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 better geekbench 3 AES single core score 122,800 MB/s vs 68,600 MB/s Around 80% better geekbench 3 AES single core score
Much higher clock speed 3.4 GHz vs 1.6 GHz More than 2x higher clock speed
Much better overclocked clock speed (Air) 4.22 GHz vs 1.79 GHz More than 2.2x better overclocked clock speed (Air)
Significantly better performance per dollar 0.66 pt/$ vs 0.27 pt/$ Around 2.5x better performance per dollar
Much better overclocked clock speed (Water) 4.59 GHz vs 1.6 GHz More than 2.8x better overclocked clock speed (Water)
Front view of Intel Core2 Duo L7500

Reasons to consider the
Intel Core2 Duo L7500

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Much lower typical power consumption 13.81W vs 77.19W 5.6x lower typical power consumption
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Better performance per watt 3.87 pt/W vs 1.14 pt/W Around 3.5x better performance per watt
Much lower annual home energy cost 4.1 $/year vs 22.89 $/year 5.6x lower annual home energy cost
Much lower annual commercial energy cost 14.89 $/year vs 83.22 $/year 5.6x lower annual commercial energy cost

Benchmarks Real world tests of Pentium D 945 vs Core2 Duo L7500

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 945
122,800 MB/s
Core2 Duo L7500
68,600 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

Specifications Full list of technical specs

summary

Pentium D 945  vs
Core2 Duo L7500 
Clock speed 3.4 GHz 1.6 GHz
Cores Dual core Dual core
Socket type
LGA 775
479

features

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

power consumption

TDP 95W 17W
Annual home energy cost 22.89 $/year 4.1 $/year
Annual commercial energy cost 83.22 $/year 14.89 $/year
Performance per watt 1.14 pt/W 3.87 pt/W
Typical power consumption 77.19W 13.81W

details

Pentium D 945  vs
Core2 Duo L7500 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 4 MB 4 MB
L2 cache per core 2 MB/core 2 MB/core
Manufacture process 65 nm 65 nm
Transistor count 376,000,000 291,000,000
Max CPUs 1 1
Clock multiplier 17 8
Voltage range 1.2 - 1.34V 0.97 - 1.06V

overclocking

Overclocked clock speed 4.22 GHz 1.79 GHz
Overclocked clock speed (Water) 4.59 GHz 1.6 GHz
Overclocked clock speed (Air) 4.22 GHz 1.79 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 945
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Intel Core2 Duo L7500
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