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Front view of Intel Xeon E3-1260L

Intel Xeon E3-1260L

CPUBoss Winner

Differences What are the advantages of each

Front view of Intel Xeon X5550

Reasons to consider the
Intel Xeon X5550

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Significantly higher clock speed 2.66 GHz vs 2.4 GHz More than 10% higher clock speed
Supports more RAM 147,456 MB vs 32,768 MB Supports 4.5x more RAM
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Xeon E3-1260L

Reasons to consider the
Intel Xeon E3-1260L

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Much better PassMark score 6,534 vs 5,416 More than 20% better PassMark score
Much better PassMark (Single core) score 1,642 vs 1,252 More than 30% better PassMark (Single core) score
Much better performance per watt 5.01 pt/W vs 2.43 pt/W More than 2x better performance per watt
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher turbo clock speed 3.3 GHz vs 3.06 GHz Around 10% higher turbo clock speed
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much lower typical power consumption 36.56W vs 77.19W 2.1x lower typical power consumption
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower annual commercial energy cost 39.42 $/year vs 83.22 $/year 2.1x lower annual commercial energy cost
Much lower annual home energy cost 10.84 $/year vs 22.89 $/year 2.1x lower annual home energy cost
Newer Apr, 2011 vs Mar, 2009 Release date over 2 years later

Benchmarks Real world tests of Xeon X5550 vs E3-1260L

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Xeon X5550  vs
E3-1260L 
Clock speed 2.66 GHz 2.4 GHz
Turbo clock speed 3.06 GHz 3.3 GHz
Cores Quad core Quad core
Socket type
LGA 1366
LGA 1155

features

Has a NX bit Yes Yes
Supports trusted computing No Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 31,999.98 MB/s 21,333.32 MB/s
Maximum memory size 147,456 MB 32,768 MB

details

Xeon X5550  vs
E3-1260L 
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 2 1
Operating temperature Unknown - 75°C Unknown - 58.6°C

integrated graphics

GPU None GPU
Label N/A HD Graphics 2000
Number of displays supported N/A 2
GPU clock speed N/A 650 MHz
Turbo clock speed N/A 1,250 MHz

power consumption

TDP 95W 45W
Annual home energy cost 22.89 $/year 10.84 $/year
Annual commercial energy cost 83.22 $/year 39.42 $/year
Performance per watt 2.43 pt/W 5.01 pt/W
Typical power consumption 77.19W 36.56W

bus

Architecture QPI DMI
Number of links 2 1
Transfer rate 6,400 MT/s 5,000 MT/s
Intel Xeon X5550
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Intel Xeon E3-1260L
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