Athlon 64 X2 4000+ vs Phenom II X2 555 BE

Primary Details

Comparing Phenom II X2 555 BE and Athlon 64 X2 4000+ processor market type (desktop or notebook), architecture, sales start time and price.

Place in performance ranking	not rated	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Architecture codename	Callisto (2009−2010)	Windsor (2006−2009)
Release date	25 January 2010 (14 years ago)	May 2006 (18 years ago)
Current price	$60	$76

Detailed Specifications

Phenom II X2 555 BE and Athlon 64 X2 4000+ 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	no data
Boost clock speed	3.2 GHz	2 GHz
L1 cache	128 KB (per core)	256 KB
L2 cache	512 KB (per core)	512K
L3 cache	6 MB (shared)	0 KB
Chip lithography	45 nm	90 nm
Die size	258 mm2	220 mm2
Number of transistors	758 million	154 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	Yes	No

Compatibility

Information on Phenom II X2 555 BE and Athlon 64 X2 4000+ 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	AM2
Power consumption (TDP)	80 Watt	89 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Phenom II X2 555 BE and Athlon 64 X2 4000+. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR3

no data

Peripherals

Specifications and connection of peripherals supported by Phenom II X2 555 BE and Athlon 64 X2 4000+.

PCIe version

2.0

no data

Pros & Cons Summary

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Chip lithography	45 nm	90 nm
Power consumption (TDP)	80 Watt	89 Watt

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Should you still have questions on choice between Phenom II X2 555 BE and Athlon 64 X2 4000+, ask them in Comments section, and we shall answer.

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