Athlon XP 2800+ vs Pentium D 840

Primary details

Comparing Pentium D 840 and Athlon XP 2800+ processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Architecture codename	Smithfield (2005)	Barton (2001−2004)
Release date	May 2005 (19 years ago)	January 2001 (23 years ago)

Detailed specifications

Pentium D 840 and Athlon XP 2800+ 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)	1 (Single-Core)
Threads	2	1
Base clock speed	3.2 GHz	no data
Boost clock speed	3.2 GHz	2.25 GHz
L1 cache	28 KB	128 KB
L2 cache	2 MB	512K
L3 cache	0 KB	0 KB
Chip lithography	90 nm	130 nm
Die size	206 mm2	101 mm2
Maximum core temperature	70 °C	no data
Number of transistors	169 million	63 million
64 bit support	+	-
Windows 11 compatibility	-	-
VID voltage range	1.2V-1.4V	no data

Compatibility

Information on Pentium D 840 and Athlon XP 2800+ 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	A
Power consumption (TDP)	130 Watt	74 Watt

Technologies and extensions

Technological solutions and additional instructions supported by Pentium D 840 and Athlon XP 2800+. You'll probably need this information if you require some particular technology.

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

Security technologies

Pentium D 840 and Athlon XP 2800+ 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 Pentium D 840 and Athlon XP 2800+ are enumerated here.

VT-d	-	no data
VT-x	-	no data

Memory specs

Types, maximum amount and channel quantity of RAM supported by Pentium D 840 and Athlon XP 2800+. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1, DDR2, DDR3

no data

Pros & cons summary

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Physical cores	2	1
Threads	2	1
Chip lithography	90 nm	130 nm
Power consumption (TDP)	130 Watt	74 Watt

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