AMD’s Premium 4x4 Platform to Use Server Infrastructure
 

Advanced Micro Devices will use server form-factors for its next-generation AMD Athlon 64 FX microprocessors and 4x4 platform. This will result in much higher price of 4x4 computers as compared to typical Athlon 64 X2-based offerings as well as competing Intel Core 2 Extreme-based platforms.

The new AMD Athlon 64 FX-70 (2.60GHz, 2MB L2 cache [1MB per core]), FX-72 (2.80GHz, 2MB L2 cache [1MB per core]) and FX-74 (3.00GHz, 2MB L2 cache [1MB per core]) microprocessors will be compatible with socket F infrastructure, a 1207-pin land grid array (LGA) form-factor. It is unclear whether the new AMD Athlon 64 FX processors require registered DDR2 memory modules, which cost more than typical DDR2 components and which are somewhat slower, but it is highly-likely that this will be a requirement.

heres is a picture for Kentsfield ready motherboards owners need when they post this in AMD forums: