NVIDIA announced a 64GB unified-memory configuration of the DGX Spark on October 2, 2026, with a $4,999 starting price and U.S. availability scheduled for October 23 through six OEM partners. It has half the unified memory of the original 128GB configuration, while retaining the GB10 Grace Blackwell Superchip, DGX OS and NVIDIA’s AI software stack.
NeoTeo previously covered NVIDIA’s push to bring local AI into the home. The 64GB configuration extends that story with a smaller memory tier and an advertised route to combine two systems.
NVIDIA’s 64GB DGX Spark configuration
The 64GB model keeps the GB10 Grace Blackwell Superchip and NVIDIA’s AI software stack. Its unified memory is shared by the CPU and GPU, giving the system a single 64GB pool for local AI workloads. The original DGX Spark configuration has 128GB.
That distinction matters when assessing NVIDIA’s model-size claims: the company gives separate advertised limits for one unit and for a pair of linked systems.
What NVIDIA says one system and two can handle
NVIDIA advertises support for models with up to 100 billion parameters on one 64GB DGX Spark. With two linked 64GB systems pooling 128GB of memory, NVIDIA advertises models up to 200 billion parameters.
| Configuration | Unified memory | NVIDIA-advertised maximum model size |
| One DGX Spark 64GB | 64GB | Up to 100 billion parameters |
| Two linked DGX Spark 64GB systems | 128GB pooled | Up to 200 billion parameters |
NVIDIA also reports that two clustered 64GB systems achieved up to 1.7× the performance of one 128GB system in its Qwen 3.8 27B test. That result applies to this specific test and comparison, rather than describing performance across all models and workloads.
How NVIDIA says two systems connect
NVIDIA says the two units connect directly through their ConnectX-7 ports using a QSFP cable. NVIDIA Sync Cluster Assistant configures the cluster. NVIDIA describes the link as 200 GbE over QSFP.
An earlier NVIDIA Sync tutorial demonstrates the general workflow on DGX Spark systems, including device discovery, cluster setup, network validation and SSH configuration. It predates the 64GB announcement.
U.S. starting price and scheduled availability
NVIDIA announced a $4,999 starting price for the 64GB configuration. It scheduled U.S. availability for October 23, 2026, through Acer, ASUS, Dell, Gigabyte, HP and MSI.
