	Much higher clock speed 2.93 GHz		Much higher turbo clock speed 3.6 GHz
	Better overclocked clock speed (Air) 3.96 GHz		Significantly better overclocked clock speed (Water) 4.39 GHz

summary	Xeon X3470	X3440
Clock speed	2.93 GHz	2.53 GHz
Turbo clock speed	3.6 GHz	2.93 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
power consumption
TDP	95W	95W
Annual home energy cost	22.89 $/year	22.89 $/year
Annual commercial energy cost	83.22 $/year	83.22 $/year
Performance per watt	1.43 pt/W	1.72 pt/W
Typical power consumption	77.19W	77.19W
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	Yes
Maximum bandwidth	21,333.32 MB/s	21,333.32 MB/s
Maximum memory size	32,768 MB	32,768 MB

details	Xeon X3470	X3440
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	22	19
Voltage range	0.65 - 1.4V	0.65 - 1.4V
Operating temperature	Unknown - 72.7°C	Unknown - 72.7°C
overclocking
Overclocked clock speed	3.96 GHz	3.84 GHz
Overclocked clock speed (Water)	4.39 GHz	4.2 GHz
Overclocked clock speed (Air)	3.96 GHz	3.84 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	DMI	DMI
Number of links	1	1
Transfer rate	2,500 MT/s	2,500 MT/s

Intel Xeon X3470 vs X3440

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