Athlon 64 FX-76 vs Athlon 64 FX-55

Primary details

Comparing Athlon 64 FX-55 and Athlon 64 FX-76 processor market type (desktop or notebook), architecture, sales start time and price.

Place in the ranking	3163	not rated
Place by popularity	not in top-100	not in top-100
Market segment	Desktop processor	Desktop processor
Power efficiency	0.23	no data
Architecture codename	Clawhammer (2001−2005)	Windsor (2006−2007)
Release date	10 October 2004 (20 years ago)	November 2006 (18 years ago)
Launch price (MSRP)	$180	no data

Cost-effectiveness evaluation

Performance per price, higher is better.

Detailed specifications

Athlon 64 FX-55 and Athlon 64 FX-76 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	1 (Single-Core)	2 (Dual-core)
Threads	1	2
Base clock speed	2.6 GHz	no data
Boost clock speed	2.6 GHz	3.2 GHz
L1 cache	128 KB	128 KB
L2 cache	1 MB	1 MB
L3 cache	0 KB	0 KB
Chip lithography	130 nm	90 nm
Die size	193 mm2	235 mm2
Maximum case temperature (TCase)	63 °C	no data
Number of transistors	105 million	227 million
64 bit support	+	+
Windows 11 compatibility	-	-
Unlocked multiplier	+	-

Compatibility

Information on Athlon 64 FX-55 and Athlon 64 FX-76 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	939	F
Power consumption (TDP)	104 Watt	125 Watt

Memory specs

Types, maximum amount and channel quantity of RAM supported by Athlon 64 FX-55 and Athlon 64 FX-76. Depending on the motherboard, higher memory frequencies may be supported.

Supported memory types

DDR1 Depends on motherboard

DDR1

Graphics specifications

General parameters of integrated GPUs, if any.

Integrated graphics card

On certain motherboards (Chipset feature)

no data

Pros & cons summary

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Physical cores	1	2
Threads	1	2
Chip lithography	130 nm	90 nm
Power consumption (TDP)	104 Watt	125 Watt

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