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Intel Xeon X5670

Front view of Intel Xeon X5670
Front view of Intel Xeon E5540

Intel Xeon E5540

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Differences What are the advantages of each

Front view of Intel Xeon X5670

Reasons to consider the
Intel Xeon X5670

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Much higher clock speed 2.93 GHz vs 2.53 GHz More than 15% higher clock speed
Significantly higher turbo clock speed 3.33 GHz vs 2.8 GHz Around 20% higher turbo clock speed
Much more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much better PassMark score 8,013 vs 4,857 Around 65% better PassMark score
Much more l3 cache 12 MB vs 8 MB 50% more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 4 2 more cores; run more applications at once
Much better performance per watt 8.54 pt/W vs 2.24 pt/W More than 3.8x better performance per watt
Much higher Maximum operating temperature 81.3 °C vs 76 °C More than 5% higher Maximum operating temperature
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
More threads 12 vs 8 4 more threads
Much better overclocked clock speed (Air) 4.29 GHz vs 3.57 GHz More than 20% better overclocked clock speed (Air)
Supports more RAM 294,912 MB vs 147,456 MB Supports 2x more RAM
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More l2 cache per core 0.33 MB/core vs 0.25 MB/core Around 35% more l2 cache per core
Newer Mar, 2010 vs Mar, 2009 Release date 11 months later
Better overclocked clock speed (Water) 4.5 GHz vs 4.45 GHz Almost the same
Front view of Intel Xeon E5540

Reasons to consider the
Intel Xeon E5540

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Lower typical power consumption 65W vs 77.19W More than 15% lower typical power consumption
Lower annual commercial energy cost 70.08 $/year vs 83.22 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 22.89 $/year More than 15% lower annual home energy cost

Benchmarks Real world tests of Xeon X5670 vs E5540

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5670
24,364
Xeon E5540
8,617

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5670
2,341
Xeon E5540
1,679

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5670
1,590,000 MB/s
Xeon E5540
112,700 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5670
13,847
Xeon E5540
7,362

GeekBench

Xeon X5670
14,780
Xeon E5540
8,085

PassMark Data courtesy Passmark

Xeon X5670
8,013
Xeon E5540
4,857

PassMark (Single Core)

Xeon X5670
1,347
Xeon E5540
1,141

Specifications Full list of technical specs

summary

 Xeon X5670  vs
E5540 
Clock speed 2.93 GHz 2.53 GHz
Turbo clock speed 3.33 GHz 2.8 GHz
Cores Hexa core Quad core
Socket type
LGA 1366

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

power consumption
TDP 95W 80W
Annual home energy cost 22.89 $/year 19.27 $/year
Annual commercial energy cost 83.22 $/year 70.08 $/year
Performance per watt 8.54 pt/W 2.24 pt/W
Typical power consumption 77.19W 65W

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Triple Channel Triple Channel
Supports ECC Yes Yes
Maximum bandwidth 31,999.98 MB/s 25,599.99 MB/s
Maximum memory size 294,912 MB 147,456 MB

details

 Xeon X5670  vs
E5540 
Architecture x86-64 x86-64
Threads 12 8
L2 cache 2 MB 1 MB
L2 cache per core 0.33 MB/core 0.25 MB/core
L3 cache 12 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 2 2
Clock multiplier 22 19
Voltage range 0.75 - 1.35V 0.75 - 1.35V
Operating temperature Unknown - 81.3°C Unknown - 76°C

overclocking
Overclock popularity 8 0
Overclocked clock speed 4.29 GHz 3.57 GHz
Overclocked clock speed (Water) 4.5 GHz 4.45 GHz
Overclocked clock speed (Air) 4.29 GHz 3.57 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

bus
Architecture QPI QPI
Number of links 2 2
Data rate 51,200 MB/s 46,928 MB/s
Transfer rate 6,400 MT/s 5,860 MT/s
Clock speed 3,200 MHz 2,930 MHz
Intel Xeon X5670
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Intel Xeon E5540
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