Celeron 1017U vs Pentium D 840

Primary details

Comparing Pentium D 840 and Celeron 1017U processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	2500
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Laptop
Series	no data	Intel Celeron
Power efficiency	no data	5.29
Architecture codename	Smithfield (2005)	Ivy Bridge (2012−2013)
Release date	May 2005 (19 years ago)	1 July 2013 (11 years ago)

Detailed specifications

Pentium D 840 and Celeron 1017U 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)	2 (Dual-core)
Threads	2	2
Base clock speed	3.2 GHz	1.6 GHz
Boost clock speed	3.2 GHz	1.6 GHz
Bus rate	no data	5 GT/s
L1 cache	28 KB	128 KB
L2 cache	2 MB	512 KB
L3 cache	0 KB	2 MB
Chip lithography	90 nm	22 nm
Die size	206 mm2	94 mm2
Maximum core temperature	70 °C	105 °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 840 and Celeron 1017U 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	FCBGA1023
Power consumption (TDP)	130 Watt	17 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 840 and Celeron 1017U. You'll probably need this information if you require some particular technology.

Instruction set extensions	no data	Intel® SSE4.1, Intel® SSE4.2
Enhanced SpeedStep (EIST)	+	+
My WiFi	no data	-
Turbo Boost Technology	-	-
Hyper-Threading Technology	-	-
Idle States	+	+
Thermal Monitoring	-	+
Flex Memory Access	no data	+
Demand Based Switching	-	-
PAE	32 Bit	no data
FDI	no data	+
Fast Memory Access	no data	+
FSB parity	-	no data

Security technologies

Pentium D 840 and Celeron 1017U technologies aimed at improving security, for example, by protecting against hacks.

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

Virtualization technologies

Virtual machine speed-up technologies supported by Pentium D 840 and Celeron 1017U are enumerated here.

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

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 840 and Celeron 1017U. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types	DDR1, DDR2, DDR3	DDR3
Maximum memory size	no data	32 GB
Max memory channels	no data	2
Maximum memory bandwidth	no data	25.6 GB/s

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card	no data	Intel® HD Graphics for 3rd Generation Intel® Processors
Graphics max frequency	no data	1 GHz

Graphics interfaces

Available interfaces and connections of Pentium D 840 and Celeron 1017U integrated GPUs.

Number of displays supported	no data	3
eDP	no data	+
DisplayPort	-	+
HDMI	-	+
SDVO	no data	+
CRT	no data	+

Peripherals

Specifications and connection of peripherals supported by Pentium D 840 and Celeron 1017U.

PCIe version	no data	2.0
PCI Express lanes	no data	16

Pros & cons summary

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Chip lithography	90 nm	22 nm
Power consumption (TDP)	130 Watt	17 Watt

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Should you still have questions on choice between Pentium D 840 and Celeron 1017U, ask them in Comments section, and we shall answer.

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