Xeon X3470 vs Pentium D 820

Primary details

Comparing Pentium D 820 and Xeon X3470 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	1885
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Server
Series	Pentium D	no data
Power efficiency	no data	2.05
Architecture codename	Smithfield (2005)	no data
Release date	May 2005 (19 years ago)	1 July 2009 (15 years ago)

Detailed specifications

Pentium D 820 and Xeon X3470 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 cores	2 (Dual-core)	4 (Quad-Core)
Threads	2	8
Base clock speed	2.8 GHz	2.93 GHz
Boost clock speed	2.8 GHz	3.6 GHz
Bus rate	800 MHz	no data
L1 cache	28 KB	no data
L2 cache	2 MB	no data
L3 cache	0 KB	8 MB Intel® Smart Cache
Chip lithography	90 nm	45 nm
Die size	206 mm2	no data
Maximum core temperature	64 °C	73 °C
Number of transistors	169 million	no data
64 bit support	+	+
Windows 11 compatibility	-	-
VID voltage range	1.2V-1.4V	no data

Compatibility

Information on Pentium D 820 and Xeon X3470 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 configuration	2	1
Socket	PLGA775	FCLGA1156,LGA1156
Power consumption (TDP)	95 Watt	95 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 820 and Xeon X3470. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.2
Enhanced SpeedStep (EIST)	-	+
Turbo Boost Technology	-	1.0
Hyper-Threading Technology	-	+
Idle States	+	+
Demand Based Switching	-	+
PAE	32 Bit	36 Bit
FSB parity	-	no data

Security technologies

Pentium D 820 and Xeon X3470 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	+
EDB	+	+

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 820 and Xeon X3470 are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 820 and Xeon X3470. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3-800, DDR3-1066, DDR3-1333
Maximum memory size	no data	32 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	21 GB/s
ECC memory support	-	+

Peripherals

Specifications and connection of peripherals supported by Pentium D 820 and Xeon X3470.

PCIe version	no data	2.0
PCI Express lanes	no data	16

Synthetic benchmark performance

Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.

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Pros & cons summary

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Physical cores	2	4
Threads	2	8
Chip lithography	90 nm	45 nm

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Should you still have questions on choice between Pentium D 820 and Xeon X3470, ask them in Comments section, and we shall answer.

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