I can't wait to buy a shiny new Sound Blaster ZxR so I can get that noticeably superior audio.
It's important to note that in order to truly experience the noticeably superior audio from a Soundblaster ZxR you need to pair it with an appropriate Purity Audio Ultra GT preamp (retail $53,000), WAVAC SH-833 monoblocs ($350,000 each, you'll need two sets) driving Moon Audio Titan 2's ($510,000 each), with the equipment on an NTT Audiolab RC4 stand ($18,000) and Walker Audio speaker cables ($13,500 a pair, you'll need two pairs because you're bi-amping) alongside a PurePower 2000 power conditioner ($2,800).
Actual measurements of music reproduction quality rather than liberal use of the listener's imagination as in the HotHardware review have shown that even the crappiest DACs built into a cheap motherboard or laptop produce sound that's as good as anything from a professional sound system of 5-10 years ago. The important factor beyond that point is (a) noise immunity of the low-level signal portions (the inside of a computer isn't a good environment for those) and (b) the speakers. Whether you're using a Creative Labs or Intel Express chipset DAC doesn't make any difference.