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Differences What are the advantages of each

Front view of Intel Xeon X5680

Reasons to consider the
Intel Xeon X5680

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Much better geekbench 3 Multi-Core score 21,510 vs 14,564 Around 50% better geekbench 3 Multi-Core score
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Supports trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Supports more RAM 294,912 MB vs 24,576 MB Supports 12x more RAM
Higher Maximum operating temperature 78.5 °C vs 67.9 °C More than 15% higher Maximum operating temperature
Much lower annual home energy cost 31.32 $/year vs 50.68 $/year Around 40% lower annual home energy cost
Better performance per watt 6.11 pt/W vs 4.35 pt/W More than 40% better performance per watt
Much lower annual commercial energy cost 113.88 $/year vs 148.92 $/year Around 25% lower annual commercial energy cost
Better overclocked clock speed (Water) 4.55 GHz vs 4.28 GHz More than 5% better overclocked clock speed (Water)
Front view of Intel Core i7 980X

Reasons to consider the
Intel Core i7 980X

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Significantly better performance per dollar 0.76 pt/$ vs 0.48 pt/$ Around 60% better performance per dollar
Better overclocked clock speed (Air) 4.53 GHz vs 4.24 GHz More than 5% better overclocked clock speed (Air)
Slightly better geekbench 3 single core score 2,586 vs 2,414 More than 5% better geekbench 3 single core score

Benchmarks Real world tests of Xeon X5680 vs Core i7 980X

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X5680
21,510
Core i7 980X
14,564

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X5680
2,414
Core i7 980X
2,586

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X5680
1,560,000 MB/s
Core i7 980X
1,710,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X5680
15,844
Core i7 980X
14,533

GeekBench (64-bit) Data courtesy Primate Labs

Xeon X5680
15,090
Core i7 980X
15,418

GeekBench

Xeon X5680
15,844
Core i7 980X
15,418

PassMark Data courtesy Passmark

Xeon X5680
8,748
Core i7 980X
8,879

PassMark (Single Core)

Xeon X5680
1,452
Core i7 980X
1,454

Specifications Full list of technical specs

summary

Xeon X5680  vs
Core i7 980X 
Clock speed 3.33 GHz 3.33 GHz
Turbo clock speed 3.6 GHz 3.6 GHz
Cores Hexa core Hexa 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 130W 130W
Annual home energy cost 31.32 $/year 50.68 $/year
Annual commercial energy cost 113.88 $/year 148.92 $/year
Performance per watt 6.11 pt/W 4.35 pt/W
Typical power consumption 105.63W N/A

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 No
Maximum bandwidth 31,999.98 MB/s 25,599.99 MB/s
Maximum memory size 294,912 MB 24,576 MB

details

Xeon X5680  vs
Core i7 980X 
Architecture x86-64 x86-64
Threads 12 12
L2 cache 2 MB 2 MB
L2 cache per core 0.33 MB/core 0.33 MB/core
L3 cache 12 MB 12 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 1
Clock multiplier 25 25
Voltage range 0.75 - 1.35V 0.8 - 1.38V
Operating temperature Unknown - 78.5°C Unknown - 67.9°C

overclocking

Overclock popularity 4 85
Overclocked clock speed 4.24 GHz 4.53 GHz
Overclocked clock speed (Water) 4.55 GHz 4.28 GHz
Overclocked clock speed (Air) 4.24 GHz 4.53 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 1
Data rate 51,200 MB/s 25,600 MB/s
Transfer rate 6,400 MT/s 6,400 MT/s
Clock speed 3,200 MHz 3,200 MHz
Intel Xeon X5680
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Intel Core i7 980X
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