CPUBoss Review Our evaluation of L5240 vs E5450 among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

No winner declared

Too close to call

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VS

Differences What are the advantages of each

Front view of Intel Xeon L5240

Reasons to consider the
Intel Xeon L5240

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Significantly lower typical power consumption 32.5W vs 65W 2x lower typical power consumption
Significantly better overclocked clock speed (Air) 4.05 GHz vs 3.83 GHz More than 5% better overclocked clock speed (Air)
Significantly lower annual commercial energy cost 35.04 $/year vs 70.08 $/year 2x lower annual commercial energy cost
Significantly lower annual home energy cost 9.64 $/year vs 19.27 $/year 2x lower annual home energy cost
Newer Jul, 2008 vs Nov, 2007 Release date 8 months later
Front view of Intel Xeon E5450

Reasons to consider the
Intel Xeon E5450

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Much more l2 cache 12 MB vs 6 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much better overclocked clock speed (Water) 4.1 GHz vs 3 GHz More than 35% better overclocked clock speed (Water)

Benchmarks Real world tests of Xeon L5240 vs E5450

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L5240
3,000
Xeon E5450
6,390

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon L5240
1,628
Xeon E5450
1,619

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L5240
128.5 MB/s
Xeon E5450
128,600 MB/s

PassMark Data courtesy Passmark

Xeon L5240
2,271
Xeon E5450
4,244

PassMark (Single Core)

Xeon L5240
1,286
Xeon E5450
1,270

Specifications Full list of technical specs

summary

Xeon L5240  vs
E5450 
Clock speed 3 GHz 3 GHz
Cores Dual core Quad core
Socket type
LGA 771

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
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 40W 80W
Annual home energy cost 9.64 $/year 19.27 $/year
Annual commercial energy cost 35.04 $/year 70.08 $/year
Performance per watt 2.22 pt/W 2.1 pt/W
Typical power consumption 32.5W 65W

bus

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

details

Xeon L5240  vs
E5450 
Architecture x86-64 x86-64
Threads 2 4
L2 cache 6 MB 12 MB
L2 cache per core 3 MB/core 3 MB/core
Manufacture process 45 nm 45 nm
Transistor count 410,000,000 820,000,000
Max CPUs 2 2
Clock multiplier 9 9
Voltage range 0.85 - 1.35V 0.85 - 1.35V
Operating temperature Unknown - 56°C Unknown - 67°C

overclocking

Overclocked clock speed 4.05 GHz 3.83 GHz
Overclocked clock speed (Water) 3 GHz 4.1 GHz
Overclocked clock speed (Air) 4.05 GHz 3.83 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 L5240
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Intel Xeon E5450
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