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Differences What are the advantages of each

Front view of Intel Xeon X5650

Reasons to consider the
Intel Xeon X5650

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More cores 6 vs 2 Three times as many cores; run more applications at once
Much better PassMark score 7,510 vs 1,971 More than 3.8x better PassMark score
More threads 12 vs 2 10 more threads
Much better performance per watt 7.89 pt/W vs 1.56 pt/W More than 5x better performance per watt
Much better performance per dollar 1.44 pt/$ vs 0.14 pt/$ Around 10.5x better performance per dollar
Much higher Maximum operating temperature 81.3 °C vs 65 °C More than 25% higher Maximum operating temperature
Significantly newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Much better overclocked clock speed (Water) 4.64 GHz vs 3 GHz Around 55% better overclocked clock speed (Water)
Significantly better overclocked clock speed (Air) 3.84 GHz vs 3.63 GHz More than 5% better overclocked clock speed (Air)
Newer Mar, 2010 vs Jun, 2006 Release date over 3 years later
Front view of Intel Xeon 5160

Reasons to consider the
Intel Xeon 5160

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Much more l2 cache 4 MB vs 2 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3 GHz vs 2.66 GHz Around 15% higher clock speed
Much more l2 cache per core 2 MB/core vs 0.33 MB/core More than 6x more l2 cache per core
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 X5650 vs 5160

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5650
22,313
Xeon 5160
5,525

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5650
2,176
Xeon 5160
1,569

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5650
1,470,000 MB/s
Xeon 5160
120,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5650
13,247
Xeon 5160
2,576

GeekBench

Xeon X5650
14,009
Xeon 5160
3,222

PassMark Data courtesy Passmark

Xeon X5650
7,510
Xeon 5160
1,971

PassMark (Single Core)

Xeon X5650
1,234
Xeon 5160
1,130

Specifications Full list of technical specs

summary

Xeon X5650  vs
5160 
Clock speed 2.66 GHz 3 GHz
Cores Hexa core Dual core
Socket type
LGA 1366
LGA 771

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 7.89 pt/W 1.56 pt/W
Typical power consumption 77.19W 65W

memory controller

Memory controller Built-in Built-in
Supports ECC Yes No

details

Xeon X5650  vs
5160 
Architecture x86-64 x86-64
Threads 12 2
L2 cache 2 MB 4 MB
L2 cache per core 0.33 MB/core 2 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 2 2
Clock multiplier 20 9
Voltage range 0.75 - 1.35V 1 - 1.5V
Operating temperature Unknown - 81.3°C Unknown - 65°C

overclocking

Overclock popularity 11 2
Overclocked clock speed 3.84 GHz 3.63 GHz
Overclocked clock speed (Water) 4.64 GHz 3 GHz
Overclocked clock speed (Air) 3.84 GHz 3.63 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 FSB
Number of links 2 1
Clock speed 3,200 MHz 1,333 MHz
Intel Xeon X5650
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Intel Xeon 5160
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