Athlon 64 TF-20 is a low-power single-core microprocessor with 1.6 GHz core clock frequency and 512 KB level 2 cache. Besides 64-bit instructions set and an NX feature (no-execute bit), it also supports Virtualization technology. This, perhaps, is the main reason why this CPU is branded "Athlon 64". Without Virtualization, performance and features of the TF-20 would be no different from Mobile Sempron processors. The processor is packaged into 638-pin package that fits any socket S1 motherboard, but is electrically compatible only with the first revision of this socket - S1g1. The processor was shipped in low-power notebooks, such as Acer Aspire 5516, eMachines E625, and others.

To upgrade the TF-20 microprocessor you will need to determine what processors are supported by a motherboard in your notebook. The best upgrade path is to get one of Turion X2 TL-XX microprocessors - they will likely be supported by your notebook, and they will significantly boost notebook performance in multi-threaded applications, or when you're running more than one process. There are two cautions, though. Turion X2 microprocessors have higher power dissipation than Athlon 64 TF-20, therefore a fan/heatsink in your notebook may not be able to handle increased heat production from the CPU. Higher power dissipation will also shorten battery life in the notebook. Disclaimer: make sure that the processors, you are going to upgrade to, are supported by your laptop!

AMD Athlon 64 TF-20 specifications

General information
Type	CPU/Microprocessor
Market segment	Mobile
Family	AMD Athlon 64 for Notebooks
Model number	TF-20
CPU part number	§  AMGTF20HAX4DN is an OEM/tray microprocessor
Stepping codes	CAAEG  HAAEG
Frequency	1.6 GHz / 1600 MHz
Bus speed	One 800 MHz 16-bit HyperTransport link (1.6 GT/s)
Clock multiplier	8
Package	638-pin lidless micro-PGA
AMD Package numbers	30000 30594
Socket	Socket S1 (S1g1)
Size	1.38" x 1.38" / 3.5cm x 3.5cm
End-of-Life date	Last order date is end of 1st quarter 2010 Last shipment date is end of 3rd quarter 2010
Architecture / Microarchitecture
Instruction set	x86
Microarchitecture	K8
Platform	Kite
Processor core	Sherman
Core stepping	DH-G2
CPUID	70FC2
Manufacturing process	0.065 micron silicon-on-insulator (SOI) technology
Data width	64 bit
The number of CPU cores	1
The number of threads	1
Floating Point Unit	Integrated
Level 1 cache size	64 KB 2-way set associative instruction cache 64 KB 2-way set associative data cache
Level 2 cache size	512 KB 16-way set associative cache
Multiprocessing	Uniprocessor
Extensions & Technologies	MMX instructions Extensions to MMX 3DNow! technology Extensions to 3DNow! SSE / Streaming SIMD Extensions SSE2 / Streaming SIMD Extensions 2 SSE3 / Streaming SIMD Extensions 3 AMD64 / AMD 64-bit technology  AMD-V / AMD Virtualization technology
Security Features	EVP / Enhanced Virus Protection
Low power features	PowerNow! Technology
Integrated Graphics Processing Unit
None
Integrated peripherals / components
Memory controller	The number of controllers: 1 Memory channels (per controller): 2 Memory channels (total): 2 Supported memory: DDR2-667 [1]
Other peripherals	HyperTransport technology
Electrical / Thermal parameters
Maximum operating temperature	95°C
Thermal Design Power	15 Watt

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