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Differences What are the advantages of each

Front view of Intel Xeon X7560

Reasons to consider the
Intel Xeon X7560

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Much more l3 cache 24 MB vs 10 MB Around 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
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
More cores 8 vs 4 Twice as many cores; run more applications at once
More threads 16 vs 8 Twice as many threads
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Front view of Intel Xeon E5-2643

Reasons to consider the
Intel Xeon E5-2643

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Much higher clock speed 3.3 GHz vs 2.27 GHz More than 45% higher clock speed
Much higher turbo clock speed 3.5 GHz vs 2.67 GHz More than 30% higher turbo clock speed
Much better performance per watt 7.41 pt/W vs 0.47 pt/W More than 15.8x better performance per watt
Much better performance per dollar 1.09 pt/$ vs 0.02 pt/$ Around 68.5x better performance per dollar
Much better overclocked clock speed (Air) 3.3 GHz vs 2.39 GHz Around 40% better overclocked clock speed (Air)
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Water) 3.3 GHz vs 2.27 GHz More than 45% better overclocked clock speed (Water)
Newer Mar, 2012 vs Mar, 2010 Release date over 1 years later

Benchmarks Real world tests of Xeon X7560 vs E5-2643

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X7560
2,615
Xeon E5-2643
12,252

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X7560
1,459.5
Xeon E5-2643
2,764

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X7560
96.75 MB/s
Xeon E5-2643
2,195,000 MB/s

Specifications Full list of technical specs

summary

Xeon X7560  vs
E5-2643 
Clock speed 2.27 GHz 3.3 GHz
Turbo clock speed 2.67 GHz 3.5 GHz
Cores Octa core Quad core
Socket type
LGA 1567
LGA 2011

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 130W 130W
Annual home energy cost 31.32 $/year 31.32 $/year
Annual commercial energy cost 113.88 $/year 113.88 $/year
Performance per watt 0.47 pt/W 7.41 pt/W
Typical power consumption 105.63W 105.63W

bus

Architecture QPI QPI
Number of links 4 2
Data rate 102,400 MB/s 64,000 MB/s
Transfer rate 6,400 MT/s 8,000 MT/s
Clock speed 3,200 MHz 4,000 MHz

details

Xeon X7560  vs
E5-2643 
Threads 16 8
L2 cache 2 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 24 MB 10 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 8 2

overclocking

Overclocked clock speed 2.39 GHz 3.3 GHz
Overclocked clock speed (Water) 2.27 GHz 3.3 GHz
Overclocked clock speed (Air) 2.39 GHz 3.3 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
DDR3-800
DDR
Intel Xeon X7560
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Intel Xeon E5-2643
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