Pentium 4 HT 651 vs Athlon II X2 240

Primary details

Comparing Athlon II X2 240 and Pentium 4 HT 651 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	2758	not rated
Place by popularity	not in top-100	not in top-100
Cost-effectiveness evaluation	3.28	no data
Market segment	Desktop processor	Desktop processor
Power efficiency	0.96	no data
Architecture codename	Regor (2009−2013)	Cedar Mill (2006)
Release date	23 July 2009 (15 years ago)	January 2006 (18 years ago)
Launch price (MSRP)	$35	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Athlon II X2 240 and Pentium 4 HT 651 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	2
Base clock speed	2.8 GHz	no data
Boost clock speed	2.8 GHz	3.4 GHz
L1 cache	256 KB	28 KB
L2 cache	2 MB	2 MB
L3 cache	0 KB	0 KB
Chip lithography	45 nm	65 nm
Die size	117 mm2	81 mm2
Number of transistors	410 million	188 million
64 bit support	+	+
Windows 11 compatibility	-	-

Compatibility

Information on Athlon II X2 240 and Pentium 4 HT 651 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	1	1
Socket	AM3	775
Power consumption (TDP)	65 Watt	86 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon II X2 240 and Pentium 4 HT 651. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

DDR1, DDR2, DDR3

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Peripherals

Specifications and connection of peripherals supported by Athlon II X2 240 and Pentium 4 HT 651.

PCIe version

2.0

no data

Pros & cons summary

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Physical cores	2	1
Chip lithography	45 nm	65 nm
Power consumption (TDP)	65 Watt	86 Watt

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Should you still have questions on choice between Athlon II X2 240 and Pentium 4 HT 651, ask them in Comments section, and we shall answer.

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