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Differences What are the advantages of each

Front view of Intel Xeon 5148

Reasons to consider the
Intel Xeon 5148

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Significantly more l2 cache 4 MB vs 3 MB Around 35% more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Significantly lower typical power consumption 32.5W vs 52.81W Around 40% lower typical power consumption
Much more l2 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l2 cache per core
Better geekbench 3 Multi-Core score 4,216 vs 2,850 Around 50% better geekbench 3 Multi-Core score
Significantly lower annual home energy cost 9.64 $/year vs 15.66 $/year Around 40% lower annual home energy cost
Significantly lower annual commercial energy cost 35.04 $/year vs 56.94 $/year Around 40% lower annual commercial energy cost
Front view of Intel Core2 Duo E7500

Reasons to consider the
Intel Core2 Duo E7500

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Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.93 GHz vs 2.33 GHz More than 25% higher clock speed
Much better performance per dollar 0.99 pt/$ vs 0.14 pt/$ More than 7.2x better performance per dollar
Significantly higher Maximum operating temperature 74.1 °C vs 58 °C Around 30% higher Maximum operating temperature
Better overclocked clock speed (Air) 3.85 GHz vs 3.1 GHz Around 25% better overclocked clock speed (Air)
Better geekbench 3 single core score 1,553 vs 1,200 Around 30% better geekbench 3 single core score
Newer Jan, 2009 vs Sep, 2006 Release date over 2 years later
Much better overclocked clock speed (Water) 4.06 GHz vs 2.33 GHz Around 75% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon 5148 vs Core2 Duo E7500

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

Xeon 5148
98.1 MB/s
Core2 Duo E7500
124,700 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon 5148  vs
Core2 Duo E7500 
Clock speed 2.33 GHz 2.93 GHz
Cores Dual core Dual core
Socket type
LGA 771
LGA 775

features

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

power consumption

TDP 40W 65W
Annual home energy cost 9.64 $/year 15.66 $/year
Annual commercial energy cost 35.04 $/year 56.94 $/year
Performance per watt 1.89 pt/W 1.9 pt/W
Typical power consumption 32.5W 52.81W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 1,066 MHz

details

Xeon 5148  vs
Core2 Duo E7500 
Architecture x86-64 x86-64
Threads 2 2
L2 cache 4 MB 3 MB
L2 cache per core 2 MB/core 1.5 MB/core
Manufacture process 65 nm 45 nm
Transistor count 291,000,000 228,000,000
Max CPUs 2 1
Clock multiplier 7 11
Voltage range 1.15 - 1.25V 0.85 - 1.36V
Operating temperature Unknown - 58°C Unknown - 74.1°C

overclocking

Overclocked clock speed 3.1 GHz 3.85 GHz
Overclocked clock speed (Water) 2.33 GHz 4.06 GHz
Overclocked clock speed (Air) 3.1 GHz 3.85 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
Intel Xeon 5148
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Intel Core2 Duo E7500
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