Creative has never skimped on features but in trying to be all things to
all people sometimes gets into difficulties. All flavours of the new cards share the same core X-Fi processor and have common headline features. There’s CMSS-3D and 24-bit Crystalizer, which together are referred to as Xtreme Fidelity and then there’s EAX Advanced HD 5.0. The two higher-end cards also add X-Ram to the feature list. This is 64MB of on board memory dedicated to audio. This can be likened to local texture memory on a graphics card, enabling developers to place onto the card directly.