CPUBoss Review Our evaluation of L5420 vs L5240 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 L5420

Reasons to consider the
Intel Xeon L5420

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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) 3.85 GHz vs 3 GHz Around 30% better overclocked clock speed (Water)
Front view of Intel Xeon L5240

Reasons to consider the
Intel Xeon L5240

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Much higher clock speed 3 GHz vs 2.5 GHz 20% higher clock speed
Much better overclocked clock speed (Air) 4.05 GHz vs 3.67 GHz More than 10% better overclocked clock speed (Air)
Lower typical power consumption 32.5W vs 40.63W 20% lower typical power consumption
Lower annual commercial energy cost 35.04 $/year vs 43.8 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 9.64 $/year vs 12.04 $/year More than 20% lower annual home energy cost

Benchmarks Real world tests of Xeon L5420 vs L5240

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon L5420
4,968
Xeon L5240
3,000

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon L5420
1,380
Xeon L5240
1,628

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon L5420
107,200 MB/s
Xeon L5240
128.5 MB/s

PassMark Data courtesy Passmark

Xeon L5420
3,506
Xeon L5240
2,271

PassMark (Single Core)

Xeon L5420
1,043
Xeon L5240
1,286

Specifications Full list of technical specs

summary

Xeon L5420  vs
L5240 
Clock speed 2.5 GHz 3 GHz
Cores Quad core Dual 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 50W 40W
Annual home energy cost 12.04 $/year 9.64 $/year
Annual commercial energy cost 43.8 $/year 35.04 $/year
Performance per watt 2.75 pt/W 2.22 pt/W
Typical power consumption 40.63W 32.5W

bus

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

details

Xeon L5420  vs
L5240 
Architecture x86-64 x86-64
Threads 4 2
L2 cache 12 MB 6 MB
L2 cache per core 3 MB/core 3 MB/core
Manufacture process 45 nm 45 nm
Transistor count 820,000,000 410,000,000
Max CPUs 2 2
Clock multiplier 7 9
Voltage range 0.85 - 1.35V 0.85 - 1.35V
Operating temperature Unknown - 57°C Unknown - 56°C

overclocking

Overclocked clock speed 3.67 GHz 4.05 GHz
Overclocked clock speed (Water) 3.85 GHz 3 GHz
Overclocked clock speed (Air) 3.67 GHz 4.05 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 L5420
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Intel Xeon L5240
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