Phenom II X4 955 (125W) vs Xeon E5520

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Primary details

Comparing Xeon E5520 and Phenom II X4 955 (125W) processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking2110not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation2.58no data
Market segmentServerDesktop processor
Power efficiency1.88no data
Architecture codenameGainestown (2009−2010)Deneb (2009−2011)
Release date30 March 2009 (15 years ago)1 April 2009 (15 years ago)
Launch price (MSRP)$19no data

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E5520 and Phenom II X4 955 (125W) 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 cores4 (Quad-Core)4 (Quad-Core)
Threads84
Base clock speed2.26 GHz3.2 GHz
Boost clock speed2.53 GHz3.2 GHz
L1 cache64 KB (per core)128 KB (per core)
L2 cache256 KB (per core)512 KB (per core)
L3 cache8 MB (shared)6 MB (shared)
Chip lithography45 nm45 nm
Die size263 mm2258 mm2
Maximum core temperature72 °Cno data
Number of transistors731 million758 million
64 bit support++
Windows 11 compatibility--

Compatibility

Information on Xeon E5520 and Phenom II X4 955 (125W) 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 configuration21
SocketFCLGA1366AM3
Power consumption (TDP)80 Watt125 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5520 and Phenom II X4 955 (125W). You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)+no data
Turbo Boost Technology1.0no data
Hyper-Threading Technology+no data
Idle States+no data
Demand Based Switching+no data
PAE40 Bitno data

Security technologies

Xeon E5520 and Phenom II X4 955 (125W) 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 E5520 and Phenom II X4 955 (125W) are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5520 and Phenom II X4 955 (125W). Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR3
Maximum memory size144 GBno data
Max memory channels3no data
Maximum memory bandwidth25.6 GB/sno data
ECC memory support+-

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics cardN/AOn certain motherboards (Chipset feature)

Peripherals

Specifications and connection of peripherals supported by Xeon E5520 and Phenom II X4 955 (125W).

PCIe version2.02.0

Pros & cons summary


Threads 8 4
Power consumption (TDP) 80 Watt 125 Watt

Xeon E5520 has 100% more threads, and 56.3% lower power consumption.

We couldn't decide between Xeon E5520 and Phenom II X4 955 (125W). We've got no test results to judge.

Be aware that Xeon E5520 is a server/workstation processor while Phenom II X4 955 (125W) is a desktop one.


Should you still have questions on choice between Xeon E5520 and Phenom II X4 955 (125W), ask them in Comments section, and we shall answer.

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Intel Xeon E5520
Xeon E5520
AMD Phenom II X4 955 (125W)
Phenom II X4 955 (125W)

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Community ratings

Here you can see how users rate the processors, as well as rate them yourself.


3.3 28 votes

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3.9 266 votes

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Questions & comments

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