Ascent GX10, GB10 Grace Blackwell, 128GB vs DGX Spark, GB10 Grace Blackwell, 128GB
Neither box holds Qwen3-235B-A22B at BF16. The largest quant that fits is Q3_K_M, on Ascent GX10, GB10 Grace Blackwell, 128GB.
For Qwen3-235B-A22B at BF16Ascent GX10, GB10 Grace Blackwell 128GBDGX Spark, GB10 Grace Blackwell 128GB
- Fit
- Won't fit
- Won't fit
- Headroom
- −352GB
- −352GB
- Est. speed
- —
- —
- Cheapest today
- $3,999.99 at Best Buy
- $4,699 at NVIDIA
- Per GB of memory
- $31
- $37
- Memory
- 128GB unified LPDDR5X memory
- 128GB unified LPDDR5X memory
- Usable for a model
- 120GB
- 120GB
- Memory bandwidth
- 273GB/s
- 273GB/s
- Storage
- 1TB
- 4TB
- Lowest recorded
- $3,999.99 in 2d
- $4,699 in 3d
Fit, headroom and speed are computed from each vendor’s published bandwidth and the model’s own size at 8K context. Prices are the cheapest listing we could read on each seller’s page. The arithmetic is here.
Where they actually differ
- Qwen3-235B-A22BWon't fitWon't fit
- DeepSeek-V3Won't fitWon't fit
- Llama-3.3-70BWon't fitWon't fit
- gpt-oss-120bWon't fitWon't fit
- Mistral-Large-2411Won't fitWon't fit
- Llama-4-Scout-17B-16EWon't fitWon't fit
- Qwen3-32BFitsFits
- Gemma-3-27BFitsFits
- gpt-oss-20bFitsFits
- Llama-4-Maverick-17B-128EWon't fitWon't fit
- Llama-4-BehemothWon't fitWon't fit
- Qwen3-Coder-480B-A35B-InstructWon't fitWon't fit
- Kimi-K2-InstructWon't fitWon't fit
- GLM-4.6Won't fitWon't fit
- DeepSeek-R1Won't fitWon't fit
- MiniMax-M2Won't fitWon't fit
- Qwen3-30B-A3BFitsFits
- Qwen3-4BFitsFits
- Devstral-Small-2507FitsFits
- Phi-4FitsFits
- Gemma-3n-E4BFitsFits
- Qwen3-VL-8B-InstructFitsFits
Every model we track at BF16. The rows where the two boxes agree are dimmed, because they are not what you are choosing between.