Pentium D 945 vs Xeon E5-2420 v2

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Primary details

Comparing Xeon E5-2420 v2 and Pentium D 945 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking1427not rated
Place by popularitynot in top-100not in top-100
Cost-effectiveness evaluation1.36no data
Market segmentServerDesktop processor
Power efficiency4.73no data
Architecture codenameIvy Bridge-EN (2013−2014)Presler (2005−2007)
Release date1 September 2013 (11 years ago)23 July 2006 (18 years ago)
Launch price (MSRP)$480$163

Cost-effectiveness evaluation

Performance per price, higher is better.

no data

Detailed specifications

Xeon E5-2420 v2 and Pentium D 945 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 cores6 (Hexa-Core)2 (Dual-core)
Threads122
Base clock speed2.2 GHz3.4 GHz
Boost clock speed2.7 GHz3.4 GHz
Bus rate7.2 GT/sno data
L1 cache64 KB (per core)16 KB (per core)
L2 cache256 KB (per core)2 MB (per die)
L3 cache15 MB (shared)0 KB
Chip lithography22 nm65 nm
Die size160 mm22x 81 mm2
Maximum core temperature76 °Cno data
Maximum case temperature (TCase)no data63 °C
Number of transistors1,400 million376 million
64 bit support++
Windows 11 compatibility--
VID voltage rangeno data1.2V-1.3375V

Compatibility

Information on Xeon E5-2420 v2 and Pentium D 945 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
SocketFCLGA1356LGA775,PLGA775
Power consumption (TDP)80 Watt95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Xeon E5-2420 v2 and Pentium D 945. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® AVXno data
AES-NI+-
AVX+-
Enhanced SpeedStep (EIST)++
Turbo Boost Technology2.0-
Hyper-Threading Technology+-
Idle States++
Thermal Monitoring+-
Flex Memory Access-no data
Demand Based Switching+-
PAE46 Bit32 Bit
FSB parityno data-

Security technologies

Xeon E5-2420 v2 and Pentium D 945 technologies aimed at improving security, for example, by protecting against hacks.

TXT+-
EDB++
Secure Key+no data
OS Guard+no data

Virtualization technologies

Virtual machine speed-up technologies supported by Xeon E5-2420 v2 and Pentium D 945 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Xeon E5-2420 v2 and Pentium D 945. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory typesDDR3DDR1, DDR2, DDR3
Maximum memory size384 GBno data
Max memory channels3no data
Maximum memory bandwidth38.4 GB/sno data
ECC memory support+-

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 E5-2420 v2 and Pentium D 945.

PCIe version3.0no data
PCI Express lanes24no data

Pros & cons summary


Recency 1 September 2013 23 July 2006
Physical cores 6 2
Threads 12 2
Chip lithography 22 nm 65 nm
Power consumption (TDP) 80 Watt 95 Watt

Xeon E5-2420 v2 has an age advantage of 7 years, 200% more physical cores and 500% more threads, a 195.5% more advanced lithography process, and 18.8% lower power consumption.

We couldn't decide between Xeon E5-2420 v2 and Pentium D 945. We've got no test results to judge.

Be aware that Xeon E5-2420 v2 is a server/workstation processor while Pentium D 945 is a desktop one.


Should you still have questions on choice between Xeon E5-2420 v2 and Pentium D 945, ask them in Comments section, and we shall answer.

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Intel Xeon E5-2420 v2
Xeon E5-2420 v2
Intel Pentium D 945
Pentium D 945

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Community ratings

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Questions & comments

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