Pentium N3540 vs Pentium D 820

Primary details

Comparing Pentium D 820 and Pentium N3540 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	3084	2645
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	Pentium D	Intel Pentium
Power efficiency	0.31	9.59
Architecture codename	Smithfield (2005)	Bay Trail-M (2013−2014)
Release date	May 2005 (19 years ago)	22 May 2014 (10 years ago)
Launch price (MSRP)	no data	$251

Detailed specifications

Pentium D 820 and Pentium N3540 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	4
Base clock speed	2.8 GHz	2.16 GHz
Boost clock speed	2.8 GHz	2.66 GHz
Bus rate	800 MHz	no data
L1 cache	28 KB	224 KB
L2 cache	2 MB	2 MB
L3 cache	0 KB	2 MB L2 Cache
Chip lithography	90 nm	22 nm
Die size	206 mm2	no data
Maximum core temperature	64 °C	100 °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 Pentium N3540 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	FCBGA1170
Power consumption (TDP)	95 Watt	7.5 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 820 and Pentium N3540. You'll probably need this information if you require some particular technology.

Enhanced SpeedStep (EIST)	-	+
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Demand Based Switching	-	no data
PAE	32 Bit	no data
Smart Connect	no data	+
FSB parity	-	no data

Security technologies

Pentium D 820 and Pentium N3540 technologies aimed at improving security, for example, by protecting against hacks.

TXT	-	no data
EDB	+	+
Secure Key	no data	+
Anti-Theft	no data	-

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 820 and Pentium N3540 are enumerated here.

VT-d	-	-
VT-x	-	+

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 820 and Pentium N3540. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3L-1333
Maximum memory size	no data	8 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	21.32 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel HD Graphics for Intel Atom Processor Z3700 Series
Quick Sync Video	-	+
Graphics max frequency	no data	896 MHz

Graphics interfaces

Available interfaces and connections of Pentium D 820 and Pentium N3540 integrated GPUs.

Number of displays supported

no data

2

Graphics API support

APIs supported by Pentium D 820 and Pentium N3540 integrated GPUs, sometimes API versions are included.

DirectX

no data

11.2

Peripherals

Specifications and connection of peripherals supported by Pentium D 820 and Pentium N3540.

PCIe version	no data	2.0
PCI Express lanes	no data	4
USB revision	no data	3.0 and 2.0
Total number of SATA ports	no data	2
Number of USB ports	no data	5

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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Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

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Pros & cons summary

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Performance score	0.31	0.76
Physical cores	2	4
Threads	2	4
Chip lithography	90 nm	22 nm
Power consumption (TDP)	95 Watt	7 Watt

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Should you still have questions on choice between Pentium D 820 and Pentium N3540, ask them in Comments section, and we shall answer.

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