NVIDIA DGX Spark
$4,650
$36 per GB of memory
0.06 GB/s per dollar
In stock at last check
Where to buy
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Amazon new
$4,650
NVIDIA DGX Spark™ - Personal AI Desktop Supercomputer – Desktop GB10 Grace Blackwell Chip
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Specs
- Memory
- 128 GB LPDDR5X
- Memory bandwidth
- 273 GB/s
- FP16 compute
- Not published
- INT8 compute
- Not published
- Power
- 240 W
- MSRP
- Not published
- Memory architecture
- Unified with the CPU
Fields marked "not published" are ones the vendor does not state. We leave them blank rather than estimate.
What it can run
Whether a model's weights fit in 128 GB, with a 20 percent allowance for the KV cache, activations, and the runtime. This is arithmetic on the quantization format, not a benchmark. Long contexts and large batches need more.
| Model | Q4 (4-bit) ? | Q5 (5-bit) | Q8 (8-bit) | FP16 |
|---|---|---|---|---|
| Qwen3-8B (8.2B) | Fits | Fits | Fits | Fits |
| gpt-oss-20b (21B) | Fits | Fits | Fits | Fits |
| Mistral Small 3.2 24B (24B) | Fits | Fits | Fits | Fits |
| Gemma 3 27B (27B) | Fits | Fits | Fits | Fits |
| Llama 3.3 70B Instruct (70B) | Fits | Fits | Fits | No |
| gpt-oss-120b (117B) | Fits | Fits | No | No |
| Qwen3-235B-A22B (235B) | No | No | No | No |
| DeepSeek-V3 (671B) | No | No | No | No |
| Kimi K3 (2800B) | No | No | No | No |
Sources
- NVIDIA DGX Spark product page — NVIDIA