Transmeta Corporation : Efficeon


Frequency	1.1 GHz	Up to 1.7 GHz	Up to 1.4 GHz	1.0 GHz - 1.1 GHz
L1 Instruction Cache	128 KB	128 KB	128 KB	128 KB
L1 Data Cache	64 KB	64 KB	64 KB	64 KB
L2 Write-Back Cache	1 MB	1 MB	1 MB	1 MB
VLIW Processor Engine	256-bit	256-bit	256-bit	256-bit
Instructions Issued Per Clock Cycle	Up to 8	Up to 8	Up to 8	Up to 8
Fully Integrated Northbridge	Yes	Yes	Yes	Yes
Integrated DDR SDRAM Memory Support	DDR-266, 333	DDR-266, 333	DDR-266, 333	DDR-266, 333
Support for ECC Memory	Yes	Yes	Yes	Yes
Integrated Graphics Interface	AGP 1X, 2X, and 4X	AGP 1X, 2X, and 4X	AGP 1X, 2X, and 4X	AGP 1X, 2X, and 4X
System Bus	HyperTransport™	HyperTransport	HyperTransport	HyperTransport
System Bus Speed	400 MHz	400 MHz	400 MHz	400 MHz
Aggregate I/O Total Bandwidth	1.6 GB/s	1.6 GB/s	1.6 GB/s	1.6 GB/s
Integrated Low Pin Count Bus (LPC)	Yes	Yes	Yes	Yes
Multimedia Instruction Support	MMX, SSE-SSE3	MMX, SSE-SSE3	MMX, SSE-SSE3	MMX, SSE-SSE2
Full x86 Software and OS Compatibility	Yes	Yes	Yes	Yes
Enhanced LongRun™ Power Management	Yes	Yes	Yes	Yes
Enhanced LongRun Thermal Management	Yes	Yes	Yes	Yes
Max Temperature	Up to 100°C Tj	Up to 100C Tj	Up to 100C Tj	Up to 100C Tj
Process Geometry	Fujitsu 90nm	Fujitsu 90nm	Fujitsu 90nm	TSMC 130nm
Package Size	21mm x 21mm	29mm x 29mm	21mm x 21mm	21mm x 21mm
Package	592-pin OBGA 0.8mm ball pitch	783-pin OBGA 1mm ball pitch	592-pin OBGA 0.8mm ball pitch	783-pin OBGA 1mm ball pitch

For detailed specifications for system developers, Click here.