Nvidia announces a version of DGX Spark with 64 GB of unified memory for $4,999, or $1,000 more than the 128 GB version at launch (Michael Kan/PCMag)

Michael Kan / PCMag: Nvidia announces a version of DGX Spark with 64 GB of unified memory for $4,999, or $1,000 more than the 128 GB version at launch — The ongoing memory shortage has prompted Nvidia to create a 64GB version of its DGX Spark mini PC, which runs AI models locally. The only problem?