 Often coupled with 8 - 16 MB RAM and a VLB video card, the CPU was capable of playing every title available for several years after its release, making it a "sweet spot" in CPU performance and longevity.The introduction of 3D graphics spelled the end of the 486's reign, because of their heavy use of floating point calculations and the need for faster cache and more memory bandwidth.Developers began to target the P5 Pentium processor family almost exclusively with x86 assembly language optimizations which led to the usage of terms such as "Pentium compatible processor" for software requirements.