Unverified60% confidenceFactExact time
The interconnect bandwidth between DGX Sparks is expected to be in the range of 100–400 Gbps, far lower than the 900 GB/s bandwidth provided by NVLink within data-center DGX systems.
2
Sources
60%
Confidence
Long-term
Relevance
8/7/2026
First Seen
Sources
Related Claims
UnverifiedA single DGX Spark with 128GB of unified memory and 273GB/s of bandwidth cannot hold DeepSeek 1017's expert weights, so the community typically forms a 512GB cluster with 4 units; the DGX Spark's price has risen from 3999 dollars to about 6950 dollars, and four units cost about 27800 dollars excluding networking.76% similarUnverifiedThe LPDDR5x unified memory bandwidth of the DGX Spark is approximately 273 GB/s, which is orders of magnitude lower than the HBM3e used in data center products (up to 8 TB/s per GPU).73% similarUnverified单台DGX H100服务器内8块GPU的双向带宽可达900GB/s69% similarVerifiedThe RTX 4090's GDDR6X memory interface bandwidth reaches up to 1008 GB/s69% similar
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