Product comparison · 2 cpus

Acer Intel Xeon X3440 vs Acer Intel Xeon X5550

45specifications compared
20differ
25identical
6known for one product only

Key differences

The Acer Intel Xeon X5550 has 0.13 GHz more processor base frequency than the Acer Intel Xeon X3440 (2.66 GHz vs 2.53 GHz). The Acer Intel Xeon X5550 has 3.9 GT/s more system bus rate than the Acer Intel Xeon X3440 (6.4 GT/s vs 2.50 GT/s). The Acer Intel Xeon X5550 has 0.13 GHz more processor boost frequency than the Acer Intel Xeon X3440 (3.06 GHz vs 2.93 GHz). Processor family: Intel® Xeon® 3000 Sequence on the Acer Intel Xeon X3440, Intel® Xeon® 5000 Sequence on the Acer Intel Xeon X5550. Processor model: X3440 on the Acer Intel Xeon X3440, X5550 on the Acer Intel Xeon X5550.

Processor family
- Intel Xeon X3440:Intel® Xeon® 3000 Sequence
- Intel Xeon X5550:Intel® Xeon® 5000 Sequence
Processor model
- Intel Xeon X3440:X3440
- Intel Xeon X5550:X5550
Processor base frequency
- Intel Xeon X3440:2.53 GHz
- Intel Xeon X5550:2.66 GHz
Processor socket
- Intel Xeon X3440:LGA 1156 (Socket H)
- Intel Xeon X5550:Socket B (LGA 1366)
System bus rate
- Intel Xeon X3440:2.50 GT/s
- Intel Xeon X5550:6.4 GT/s
Processor boost frequency
- Intel Xeon X3440:2.93 GHz
- Intel Xeon X5550:3.06 GHz
L3 cache speed
- Intel Xeon X3440:2.53 GHz
- Intel Xeon X5550:2.66 GHz
VID Voltage Range
- Intel Xeon X3440:0.6500 - 1.4000 V
- Intel Xeon X5550:0.75 - 1.35 V

Side by side

Differences highlightedShow differences only

Comparison of Intel Xeon X3440, Intel Xeon X5550
51 specifications	A Acer Intel Xeon X3440 View product	B Acer Intel Xeon X5550 View product
Processor13 differ
Processor familyDiffers	Intel® Xeon® 3000 Sequence	Intel® Xeon® 5000 Sequence
Processor modelDiffers	X3440	X5550
Processor base frequencyDiffers	2.53 GHz	2.66 GHz
Processor cores	4	4
Processor socketDiffers	LGA 1156 (Socket H)	Socket B (LGA 1366)
Processor lithography	45 nm	45 nm
Package type	Tray	Tray
Component for	Server/workstation	Server/workstation
Processor threads	8	8
System bus rateDiffers	2.50 GT/s	6.4 GT/s
Processor operating modes	64-bit	64-bit
Processor boost frequencyDiffers	2.93 GHz	3.06 GHz
Processor cache	8 MB	8 MB
Processor cache type	L3	L3
L3 cache speedDiffers	2.53 GHz	2.66 GHz
Thermal Design Power (TDP)	95 W	95 W
VID Voltage RangeDiffers	0.6500 - 1.4000 V	0.75 - 1.35 V
Compatible chipsetsDiffers	Intel® 3400, Intel® 3420, Intel® 3450	Intel® 5500, Intel® 5520
SteppingDiffers	B1	D0
Bus typeDiffers	DMI	QPI
Memory bandwidth supported by processor (max)Differs	21 GB/s	32 GB/s
Processor codeDiffers	SLBLF	SLBF5
Number of QPI linksKnown for one	Unknown — not stated by the source	2
Memory2 differ
Maximum internal memory supported by processorDiffers	32 GB	144 GB
Memory types supported by processor	DDR3-SDRAM	DDR3-SDRAM
Memory clock speeds supported by processor	800,1066,1333 MHz	800,1066,1333 MHz
Memory channelsDiffers	Dual-channel	Triple-channel
ECC	Yes	Yes
Features3 differ
Execute Disable Bit	Yes	Yes
Idle States	Yes	Yes
Market segment	Server	Server
Maximum number of PCI Express lanesKnown for one	1	Unknown — not stated by the source
PCI Express slots versionKnown for one	2.0	Unknown — not stated by the source
PCI Express configurationsKnown for one	1x16, 2x8, 4x4	Unknown — not stated by the source
Number of Processing Die TransistorsDiffers	774 M	731 M
Processing Die sizeDiffers	296 mm²	263 mm²
Supported instruction setsKnown for one	SSE4.2	Unknown — not stated by the source
CPU configuration (max)Differs	1	2
Graphics & IMC lithography	45 nm	45 nm
Processor special featuresidentical
Enhanced Intel SpeedStep Technology	Yes	Yes
Intel Trusted Execution TechnologyKnown for one	Yes	Unknown — not stated by the source
Intel® Hyper Threading Technology (Intel® HT Technology)	Yes	Yes
Intel® Smart Cache	Yes	Yes
Intel® Turbo Boost Technology	Yes	Yes
Intel Demand Based Switching	Yes	Yes
Intel VT-x with Extended Page Tables (EPT)	Yes	Yes
Intel Virtualization Technology (VT-x)	Yes	Yes
Intel Virtualization Technology for Directed I/O (VT-d)	Yes	Yes
Operational conditions1 differ
TcaseDiffers	72.7 °C	75 °C
Weight & dimensions1 differ
Processor package sizeDiffers	37.5 mm	42.5 mm
Other featuresidentical
Intel® Virtualization Technology (Intel® VT)	VT-d, VT-x	VT-d, VT-x

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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