Phenom II X4 955 BE vs Xeon E5440

Primary details

Comparing Xeon E5440 and Phenom II X4 955 BE processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2143not rated
Place by popularitynot in top-100not in top-100
Market segmentServerDesktop processor
Power efficiency1.77no data
Architecture codenameno dataDeneb (2009−2011)
Release date1 January 2008 (16 years ago)23 April 2009 (15 years ago)

Detailed specifications

Xeon E5440 and Phenom II X4 955 BE basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.

Physical coresno data4 (Quad-Core)
Threadsno data4
Base clock speed2.83 GHz3.2 GHz
Boost clock speedno data3.2 GHz
L1 cacheno data128 KB (per core)
L2 cacheno data512 KB (per core)
L3 cache12 MB L2 Cache6 MB (shared)
Chip lithography45 nm45 nm
Die sizeno data258 mm2
Maximum core temperature67 °Cno data
Number of transistorsno data758 million
64 bit support++
Windows 11 compatibility--
Unlocked multiplier-+
VID voltage range0.85V-1.35Vno data

Compatibility

Information on Xeon E5440 and Phenom II X4 955 BE compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configurationno data1
SocketLGA771AM3
Power consumption (TDP)80 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5440 and Phenom II X4 955 BE. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology-no data
Hyper-Threading Technology-no data
Idle States+no data
Thermal Monitoring+-
Demand Based Switching+no data
FSB parity+no data

Security technologies

Xeon E5440 and Phenom II X4 955 BE technologies aimed at improving security, for example, by protecting against hacks.

TXT-no data
EDB+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5440 and Phenom II X4 955 BE are enumerated here.

AMD-V-+
VT-x+no data
EPT-no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5440 and Phenom II X4 955 BE. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesno dataDDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardno dataOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Xeon E5440 and Phenom II X4 955 BE.

PCIe versionno data2.0

Pros & cons summary


Recency 1 January 2008 23 April 2009
Power consumption (TDP) 80 Watt 125 Watt

Xeon E5440 has 56.3% lower power consumption.

Phenom II X4 955 BE, on the other hand, has an age advantage of 1 year.

We couldn't decide between Xeon E5440 and Phenom II X4 955 BE. We've got no test results to judge.

Be aware that Xeon E5440 is a server/workstation processor while Phenom II X4 955 BE is a desktop one.


Should you still have questions on choice between Xeon E5440 and Phenom II X4 955 BE, ask them in Comments section, and we shall answer.

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Intel Xeon E5440
Xeon E5440
AMD Phenom II X4 955 BE
Phenom II X4 955 BE

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Community ratings

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