Model Number Comparison

Number: FX- ##
## indicates a specific number
Correct usage for the processor is:
- AMD Athlon™ 64 FX processors – when referring to the processor family or lineup
- AMD Athlon 64 FX processor – when referring to a generic processor in the family
- AMD Athlon 64 FX-## processor – when referring to a specific number
For example, the first processor in this family, launched on September 23, 2003, was the AMD Athlon 64 FX-51 processor.

The number for the AMD Athlon 64 FX processor communicates relative performance among AMD Athlon 64 FX processors in a series. Higher numbers are indicative of relative performance of AMD processors.

The chart below lists current AMD Athlon 64 FX processors and their associated features and technical specs.

AMD Athlon™ 64 FX

AMD Quad FX Platform
with Dual Socket Direct Connect Architecture

Features	FX-62	FX-70	FX-72	FX-74
Frequency	2.8GHz	2.6GHz	2.8GHz	3.0GHz
Number of Cores	Dual-core	Quad-core Platform (Dual socket, Dual-core)
Socket	Socket AM2	Socket F (1207 FX)
Process Technology	90nm, DSL SOI
Number of Transistors	227M	227M per processor 454M per platform
64-bit Instruction Set Support	Yes, AMD64 Technology
32-bit Instruction Set Support	Yes, x86 ISA
HyperTransport™ Support	1 HyperTransport™ technology link	3 HyperTransport™ technology links per processor
Integrated DDR Memory Controller (MCT)	Yes, Dual-channel
Memory Type	Unbuffered DDR2 memory PC2 6400, PC2 5300, PC2 4200 or PC2 3200
Total Processor-to-System Bandwidth	HyperTransport: up to 8.0 GB/s @ 2.0GHz Memory: up to 12.8 GB/s @ 800MHz Total: up to 20.8 GB/s	HyperTransport: up to 8.0 GB/s @ 2.0GHz Memory: up to 12.8 GB/s @ 800MHz per processor up to 25.6 GB/s @ 800MHz per processor Total: up to 33.6 GBs per platform
Integrated Northbridge	Yes, 128-bit data path @ CPU core frequency
High-Performance, On-chip Cache	L1:256KB L2: 2MB	L1: 512KB Total (256KB per processor) L2: 4MB Total (2MB per processor)
3D and Multimedia Instructions	3DNow!™ Professional technology, SSE/SSE2/SSE3