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Intel Xeon L5408

Front view of Intel Xeon L5408
Front view of Intel Pentium E5300

Intel Pentium E5300

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Differences What are the advantages of each

Front view of Intel Xeon L5408

Reasons to consider the
Intel Xeon L5408

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Much more l2 cache 12 MB vs 2 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 1 MB/core 3x more l2 cache per core
Much better geekbench 3 Multi-Core score 6,095 vs 2,510 Around 2.5x better geekbench 3 Multi-Core score
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
More cores 4 vs 2 Twice as many cores; run more applications at once
Better performance per watt 3.41 pt/W vs 1.66 pt/W More than 2x better performance per watt
More threads 4 vs 2 Twice as many threads
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 Pentium E5300

Reasons to consider the
Intel Pentium E5300

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Much better geekbench 3 AES single core score 110,800 MB/s vs 105,400 MB/s More than 5% better geekbench 3 AES single core score
Higher clock speed 2.6 GHz vs 2.13 GHz More than 20% higher clock speed
Much better performance per dollar 1.5 pt/$ vs 0.28 pt/$ Around 5.5x better performance per dollar
Better overclocked clock speed (Air) 3.87 GHz vs 3.34 GHz More than 15% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 4.33 GHz vs 4.12 GHz Around 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon L5408 vs Pentium E5300

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L5408
6,095
Pentium E5300
2,510

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon L5408
1,324
Pentium E5300
1,358

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L5408
105,400 MB/s
Pentium E5300
110,800 MB/s

PassMark Data courtesy Passmark

Xeon L5408
2,987
Pentium E5300
1,549

PassMark (Single Core)

Xeon L5408
932
Pentium E5300
1,052

Specifications Full list of technical specs

summary

 Xeon L5408  vs
Pentium E5300 
Clock speed 2.13 GHz 2.6 GHz
Cores Quad 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 3.41 pt/W 1.66 pt/W
Typical power consumption 32.5W 52.81W

bus
Architecture FSB FSB
Number of links 1 1
Clock speed 1,066 MHz 800 MHz

details

 Xeon L5408  vs
Pentium E5300 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 12 MB 2 MB
L2 cache per core 3 MB/core 1 MB/core
Manufacture process 45 nm 45 nm
Transistor count 820,000,000 228,000,000
Max CPUs 2 1
Clock multiplier 8 13
Voltage range 0.85 - 1.35V 0.85 - 1.36V
Operating temperature Unknown - 72°C Unknown - 74.1°C

overclocking
Overclocked clock speed 3.34 GHz 3.87 GHz
Overclocked clock speed (Water) 4.12 GHz 4.33 GHz
Overclocked clock speed (Air) 3.34 GHz 3.87 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 L5408
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Intel Pentium E5300
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