The AMD Phenom series of CPUs is AMDs QUAD-CORE series of CPUs and are available at a start of around $200+ sold seperately. Only some of the most advanced motherboards of todays era of computers (march '09) are compatible with these processors. Please look up your motherboard's model number and refer to the company's website to confirm its compatibility with the Phenom processor.
yes, but only smoothly if it were an AMD Phenom X4 9950
You can use an amd sempron or an amd athlon II with an am3 socket, but when am3 was released it was meant to be used with the amd phenom line of CPUs. You can use all three: amd sempron, amd athlon II & amd phenom.
AMD.
1800MHz
Yes, the AMD Phenom II X4 955 is a quad core processor meaning that this processor has four cores or CPUs.
No. If you want dual CPUs from AMD, you need to get opteron CPUs.
Its not needed but recommended for better use.
FM2
Turion
Am3 pga
There are about 193 AMD DESKTOP prosessors currently on the market, ca. 10 families (Phenom, Atlon etc.)
Depends - AMD make lots of different processors - What one are you looking at (Athlon, Phenom, Sempron)