Introducing the MCX64-V™ heatsink fan, for AMD®’s Athlon™ 64 and
Opteron™ processors, specifically designed to comply with AMD® mechanical
specifications, while surpassing the thermal and acoustical requirements.The
MCX64-V™ is primarily intended for OEM’s, system integrators, and users who
desire to keep their cooling solution in strict conformance with AMD®
specifications, while offering top notch cooling performance at low audible
noise levels.

Introducing the MCX6400-V™ heatsink for AMD® Athlon™ 64 and Opteron™
processors. This model is the heaviest, and features a larger number of pins for
higher heat dissipation than any other Swiftech™ heatsink at the date of this
release. It is primarily intended for extreme applications and operating
conditions".

CNC machined, C110 copper base, flatness better than 0.0003", micro surface
finish 8 or better.
405 Helicoid Pins made of High Thermal Conductivity Aluminum Alloy, press fitted
in the base.
Weight: 26.4 oz (750 g)
MSRP: $ 54.95
SHIPPING: NOW

Introducing the MCX64-V™ heatsink fan, for AMD®’s Athlon™ 64 and
Opteron™ processors, specifically designed to comply with AMD® mechanical
specifications, while surpassing the thermal and acoustical requirements.The
MCX64-V™ is primarily intended for OEM’s, system integrators, and users who
desire to keep their cooling solution in strict conformance with AMD®
specifications, while offering top notch cooling performance at low audible
noise levels.

CNC machined, C110 copper base, flatness better than 0.0003", micro surface
finish 8 or better.
360 Helicoid Pins made of High Thermal Conductivity Aluminum Alloy, press fitted
in the base.
Weight: 15.5 oz (440 g) with fan

Fan specifications
Part # Voltage
(V) Operating Range
(V) Rated current
(mA) Speed
(RPM) Max.
Air Flow
(CFM) Noise
(dB-A)

AFB0812M-F00 12 7.0 to 13.8 0.12 2700 31.4 28.0

MSRP: $ 51.95 (with fan)
SHIPPING: NOW

Comparative performance data between the two heatsinks is available here:

http://www.swiftnets.com/products/mcx64-v.asp