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AMD Athlon X2 EE 4xxx series Dual-Core processor (Brisbane, Rev. G, Energy Efficient, 45 W TDP)


Model name: Athlon X2 EE 4xxx series Dual-Core.
Code name: Brisbane, Rev. G, Energy Efficient, 45 W TDP.
Supplier: AMD.
Component class: CPU.


Generation: K8D.


64 bit technology: AMD64.

Multimedia instruction sets: MMX, Enhanced 3DNow!, SSE, SSE2, SSE3.


L1 cache: (2x) 64 kbyte instruction cache, 64 kbyte data cache (Harvard architecture).
L2 cache: (2x) 512 kbyte.


128 bit (dual-channel), 200/400/800 MHz, DDR2-800 memory controller: max. 8 x 512 Mbyte = 4 Gbyte (4 x 1 Gbyte double-sided Unbuffered PC2-6400 memory module).

1000 MHz HyperTransport bus.

Memory protection: NX bit (Enhanced Virus Protection, EVP).

Virtualization technology: AMD Virtualization (AMD-V, Pacifica).


Dual-core technology: two cores connected through HyperTransport bus.


Power management

Power management: Cool'n'Quiet (CnQ).

Clock speed

Clock speed Model Multiplier Introduction Order part numbers
200/2100 MHz AMD Athlon X2 4050e EE CPU 10.5 April 2008 OEM (stepping G2): ADH4050IAA5DO,
PIB (stepping G2): ADH4050DOBOX
200/2300 MHz AMD Athlon X2 4450e EE CPU 11.5 April 2008 OEM (stepping G2): ADH4450IAA5DO,
PIB (stepping G2): ADH4450DOBOX
200/2300 MHz AMD Athlon X2 4450B EE 1 CPU 11.5 April 2008 OEM (stepping G2): ADH445BIAA5DO,
PIB (stepping G2): ADH445BDOBOX
200/2500 MHz AMD Athlon X2 4850e EE CPU 12.5 March 2008 OEM (stepping G2): ADH4850IAA5DO,
PIB (stepping G2): ADH4850DOBOX

  1. Business Class: availability guaranteed for 24 months after release; Socket AM2+


Voltage: 1.15-1.25 V.
Power dissipation: 45 W TDP

Temperature: max. 55-78 °C.

Manufacturing process: 65 nm, SoI (Silicon-on-Insulator), 200 mm wafer.

Number of transistors: 221 million.

Die size: 118 mm2.

Packaging: Socket AM2.

Manufactured in: AMD Fab 36, Dresden, Germany.

Step level


Step levels: G2.

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