Core details	Pentium II	Pentium II	Pentium II	Pentium II Overdrive
Development name	KLamath	Deschutes	Deschutes	Deschutes
Construction size (nm)	350	250	250	250
Transistor count (millions)	7.5	7.5	7.5	7.5
Number of processor cores	1	1	1	1
Registers - ALU (bits)	32	32	32	32
Registers - FPU (bits)	80 (64 Ext)	80 (64 Ext)	80 (64 Ext)	80 (64 Ext)
Connection Type	Slot 1	Slot 1	Slot 1	Socket 8
Model Details
Name / Core speed (MHz)	233	266	350	333
	266	300	400
	300	333	450
FSB Details
CLK speed (MHz)	66	66	100	66
Data transfer rate (MHz)	66	66	100	66
Total bus width (bits)	64	64	64	64
Maximum bandwidth (GB/sec)	0.53	0.53	0.80	0.53
Cache details
L1 amount (kiB)	32	32	32	32
L1 location	on-die	on-die	on-die	on-die
L1 instruction cache size (kiB)	16	16	16	16
L2 data cache size (kiB)	16	16	16	16
L2 amount (kiB)	512	512	512	512
L2 location 1	CPU PCB	CPU PCB	CPU PCB	CPU PCB
L2 bus width (bits)	64	64	64	64
Extension support
MMX	Yes	Yes	Yes	Yes
3DNow!	No	No	No	No
SSE	No	No	No	No
Enhanced 3DNow!	No	No	No	No
3DNow! Professional	No	No	No	No
SSE2	No	No	No	No
SSE3	No	No	No	No
SSSE3	No	No	No	No
Additional Features
Intel 64	No	No	No	No
AMD64	No	No	No	No
HyperThreading	No	No	No	No
NX Bit	No	No	No	No
Virtualization Technology	No	No	No	No

Notes

1 - L2 cache run at 50% CPU core speed

© AMD & Intel CPU Specifications - N D Evanson 2008