Duron Morgan Background

The AMD Morgan core architecture is a Palomino-derived extension to the Duron series of budget-oriented microprocessors. Upgrades include 3DNow! Professional, hardware data pre-fetching, and various core improvements for better regulation of both thermal and power consumption rates. The scaledback cache architecture comes over from the Spitfire, as the Morgan still features 64 KB to the Palomino's 256 KB. The addition of a hardware data pre-fetch mechanism works well to offset the Morgan's cache deficiency. This latest-model Duron can boast performance exceeding that of the supposedly more powerful Athlon Thunderbird. The Morgan is expected to be the last Duron core marketed by AMD. The impressive Athlon Thoroughbred will soon relegate the XP to entry-level systems.

Table 7-88: Duron Morgan Specifications
Processor Family	Model Name	AMD Duron Morgan

	Performance Rating	1000 – 1300 MHz
	Generation	Seventh: 80686 IA-32
Operational Rates	L1 Cache Speed	1.0x Core Rate
	L2 Cache Speed	1.0x Core Rate
	Front-side Bus Speed	100 MHz (200 DDR)
	Multiplier Ratio	9.0x – 13.0x (14.0x Max)
Physical Design	Interface Packing	462-Pin Socket A
	Core Die Size	.18 micron, 106 mm
	Transistor Count	25.2 Million
	Voltage Interface	Split Core and I/O
	Core Voltage	1.75 volts
	Power Consumption	39.2 – 42.7 watts
	Maximum Power	55.2 – 60 watts
Architectural Design	Core Technology	OOO and Speculative Execution RISC
	Register Support	Integer = 32 bit
		Floating-Point = 80 bit
		MM = 64 bit
	Execution Units	3 × IEU
		3 × AGU
		3 × FP
	Data Bus Width	64 (+8) bit
	Max Memory Support	Physical = 16 Gigabyte
Virtual = 64 Terabyte
	Multi-Processor Support	SMP via EV6 Bus
	Level 1 Code Cache	64 KB 2-way
	Level 1 Data Cache	64 KB 2-way
	Level 2 Cache	64 KB Exclusive
	Hardware Date Pre-fetch	Supported
	Pre-fetch Queue	16 Byte
	Static Branch Prediction	Supported
	Dynamic Branch Prediction	2048 Entry
	RSB Branch Prediction	12 Entry
	Floating-Point Processor	Integrated
	Multimedia Extensions	MMX, 3DNow!, Extended 3DNow!, 3DNow! Professional (SSE)

Table 7-89: Duron Morgan Overclocking
Duron Morgan	Model Rating	1000 – 1300 MHz

	Typical O/C Potential	1300 – 1400+ MHz
Overclocking Tolerances	Recommended Cooling Type	Forced-Air Heatsink
	Recommended Heatsink Coolers	Thermalright SK-6
		Alpha PAL-8045
		TaiSol CGK742092
	Recommended Peltier Active Cooler	Swifttech MCX370
	Maximum Core Voltage	1.85 volts with Heatsink Cooler
	Maximum Core Temperature	90° Celsius

Strategy

The Duron Morgan processor offers an overclocking opportunity for most configurations. Many Duron Morgan processors are able to exceed 1300 MHz with quality forced-air heatsink cooling. Some of the higher speed processors in the series have been known to overclock past 1400 MHz with relative ease. This Palomino-derived processor displays great thermal and electrical efficiency.