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Intel Xeon X3440

Front view of Intel Xeon X3440
Front view of Intel Core i7 860

Intel Core i7 860

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Differences What are the advantages of each

Front view of Intel Xeon X3440

Reasons to consider the
Intel Xeon X3440

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Much lower typical power consumption 77.19W vs 156.35W 2x lower typical power consumption
Much lower annual home energy cost 22.89 $/year vs 53.98 $/year 2.4x lower annual home energy cost
Much lower annual commercial energy cost 83.22 $/year vs 157.68 $/year More than 45% lower annual commercial energy cost
Better performance per dollar 0.71 pt/$ vs 0.57 pt/$ More than 25% better performance per dollar
Better performance per watt 1.72 pt/W vs 0.96 pt/W Around 80% better performance per watt
Newer Sep, 2009 vs Jul, 2009 Release date 2 months later
Front view of Intel Core i7 860

Reasons to consider the
Intel Core i7 860

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Higher turbo clock speed 3.46 GHz vs 2.93 GHz Around 20% higher turbo clock speed
Higher clock speed 2.8 GHz vs 2.53 GHz More than 10% higher clock speed
Better geekbench 3 single core score 2,065 vs 1,726 Around 20% better geekbench 3 single core score
Better overclocked clock speed (Air) 4.14 GHz vs 3.84 GHz Around 10% better overclocked clock speed (Air)

Benchmarks Real world tests of Xeon X3440 vs Core i7 860

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Xeon X3440
6,898
Core i7 860
7,379

GeekBench 3 (Single core) Data courtesy Primate Labs

Xeon X3440
1,726
Core i7 860
2,065

GeekBench 3 (AES single core) Data courtesy Primate Labs

Xeon X3440
108,800 MB/s
Core i7 860
134,600 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Xeon X3440
6,463
Core i7 860
7,260

GeekBench (64-bit) Data courtesy Primate Labs

Xeon X3440
9,536
Core i7 860
8,106

GeekBench

Xeon X3440
9,536
Core i7 860
8,959

PassMark Data courtesy Passmark

Xeon X3440
4,559
Core i7 860
5,051

PassMark (Single Core)

Xeon X3440
1,036
Core i7 860
1,226

Specifications Full list of technical specs

summary

 Xeon X3440  vs
Core i7 860 
Clock speed 2.53 GHz 2.8 GHz
Turbo clock speed 2.93 GHz 3.46 GHz
Cores Quad core Quad core
Socket type
LGA 1156

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

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 DMI DMI
Number of links 1 1
Transfer rate 2,500 MT/s 2,500 MT/s

details

 Xeon X3440  vs
Core i7 860 
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 45 nm
Transistor count 774,000,000 774,000,000
Max CPUs 1 1
Clock multiplier 19 21
Voltage range 0.65 - 1.4V 0.65 - 1.4V
Operating temperature Unknown - 72.7°C Unknown - 72.7°C

overclocking
Overclock popularity 5 130
Overclocked clock speed 3.84 GHz 4.14 GHz
Overclocked clock speed (Water) 4.2 GHz 4.15 GHz
Overclocked clock speed (Air) 3.84 GHz 4.14 GHz

power consumption
TDP 95W 95W
Annual home energy cost 22.89 $/year 53.98 $/year
Annual commercial energy cost 83.22 $/year 157.68 $/year
Performance per watt 1.72 pt/W 0.96 pt/W
Typical power consumption 77.19W 156.35W

memory controller
Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3-800
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 16,384 MB
Intel Xeon X3440
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Intel Core i7 860
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