Core details	Pentium D	Pentium D	Pentium D	Pentium D		Pentium Extreme Edition	Pentium Extreme Edition
Development name	Smithfield	Smithfield	Presler	Presler		Smithfield	Presler
Construction size (nm)	90	90	65	65		90	65
Transistor count (millions)	250	250	328	328		250	328
Number of processor cores	2	2	2	2		2	2
Registers - ALU (bits)	32	32	32	32		32	32
Registers - FPU (bits)	80 (128 Ext)	80 (128 Ext)	80 (128 Ext)	80 (128 Ext)		80 (128 Ext)	80 (128 Ext)
Connection Type	LGA 775	LGA 775	LGA 775	LGA 775		LGA 775	LGA 775
Model Details
Name / Core speed (GHz)	805 / 2.67	820 / 2.8	915 / 2.8	920 / 2.8		840 / 3.2	955 / 3.47
		830 / 3.0	925 / 3.0	930 / 3.0			965 / 3.73
		840 / 3.2	935 / 3.2	940 / 3.2
			945 / 3.4	950 / 3.4
				960 / 3.6
FSB Details
CLK speed (MHz)	133	200	200	200		200	266
Data transfer rate (MHz)	533	800	800	800		800	1066
Total bus width (bits)	64	64	64	64		64	64
Maximum bandwidth (GB/sec)	4.27	6.40	6.40	6.40		6.40	8.53
Cache details
L1 amount (KiB)	~ 28 x 2	~ 28 x 2	~ 28 x 2	~ 28 x 2		~ 28 x 2	~ 28 x 2
L1 location	on-die	on-die	on-die	on-die		on-die	on-die
L1 instruction cache size (KiB)	~ 12 x 2	~ 12 x 2	~ 12 x 2	~ 12 x 2		~ 12 x 2	~ 12 x 2
L2 data cache size (KiB)	16 x 2	16 x 2	16 x 2	16 x 2		16 x 2	16 x 2
L2 amount (KiB)	1024 x 2	1024 x 2	2048 x 2	2048 x2		1024 x 2	2048 x2
L2 location	on-die	on-die	on-die	on-die		on-die	on-die
L2 bus width (bits)	256	256	256	256		256	256
Extension support
MMX	Yes	Yes	Yes	Yes		Yes	Yes
3DNow!	No	No	No	No		No	No
SSE	Yes	Yes	Yes	Yes		Yes	Yes
Enhanced 3DNow!	No	No	No	No		No	No
3DNow! Professional	No	No	No	No		No	No
SSE2	Yes	Yes	Yes	Yes		Yes	Yes
SSE3	Yes	Yes	Yes	Yes		Yes	Yes
SSSE3	No	No	No	No		No	No
Additional Features
Intel 64	Yes	Yes	Yes	Yes		Yes	Yes
AMD64	No	No	No	No		No	No
HyperThreading	No	No	No	No		Yes	Yes
NX Bit	Yes	Yes	Yes	Yes		Yes	Yes
Virtualization Technology	No	No	No	Yes		No	Yes

Notes

© AMD & Intel CPU Specifications - N D Evanson 2008