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NVIDIA · N1X Grace Blackwell · 128 GB · Qwen3.8 27B · Q4_K_M: ~11 tok/s

NVIDIA RTX Spark N1X laptop, 128 GB

A DGX Spark in a laptop: the same class of Grace Blackwell chip with CUDA, 128 GB of unified memory and slightly more bandwidth. The ASUS ProArt P14 is the first with 128 GB. Big models fit, and dense ones run as slowly as on the Spark.

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What it runs

For each model, grouped by vendor with the newest first: the largest quant that fits with 8K of context and the estimated speed for one user, at 8K and at 32K of context. On a card, a model too big for its memory can still run with part of the weights in system RAM; we assume 64 GB, and the speed shown accounts for it. The model you picked on the ladder is highlighted. Estimates from the spec sheet, not measurements: see how we estimate.

ModelQuantNeeds at 8KFitMax contextDecode at 8KAt 32KPrefill tok/s
DeepSeek
DeepSeek V4.1 Flash 552B-A16B Sep 2026Q4_K_M338 GBdoes not fit
DeepSeek V4 Flash 284B-A13B Jul 2026IQ2_M98 GBfits128K+~35~29~1,700
DeepSeek V3.1 671B-A37B Aug 2025Q4_K_M411 GBdoes not fit
Gemma
Gemma 4 12B May 2026Q8_014 GBfits128K+~15~15~1,800
Gemma 4 31B Mar 2026Q8_035 GBfits128K+~5.9~5.5~710
Gemma 4 26B-A4B Mar 2026Q8_028 GBfits128K+~40~36~5,800
Gemma 3 27B Mar 2025Q8_031 GBfits128K+~6.6~6.1~800
GLM
GLM-5.3 753B-A40B Aug 2026Q4_K_M462 GBdoes not fit
GLM-5.3 Flash 320B-A18B Aug 2026IQ2_M111 GBfits128K+~27~23~1,200
GLM-4.6 355B-A32B Sep 2025IQ2_M125 GBfits15K~13~680
GLM-4.5 Air 106B-A12B Jul 2025Q8_0115 GBfits73K~13~10~1,800
gpt-oss
gpt-oss-120b Aug 2025Q8_0126 GBfits35K~29~23~4,300
gpt-oss-20b Aug 2025Q8_024 GBfits128K+~40~32~6,100
Llama
Llama 4 Scout 109B-A17B Apr 2025Q8_0119 GBfits54K~9.6~7.8~1,300
Llama 3.3 70B Dec 2024Q8_079 GBfits128K+~2.5~2.3~310
Llama 3.1 8B Jul 2024Q8_011 GBfits128K+~20~15~2,700
MiMo
MiMo V2.6 Pro 1.02T-A42B Sep 2026Q4_K_M624 GBdoes not fit
MiMo V2.6 Flash 309B-A15B Sep 2026IQ2_M107 GBfits128K+~32~29~1,500
Mistral
Mistral Medium 3.5 128B Mar 2026Q6_K109 GBfits58K~1.8~1.7~170
Mistral Small 4 119B-A6.5B Mar 2026Q6_K104 GBfits47K~18~7.7~3,400
Mistral Small 3.2 24B Jun 2025Q8_028 GBfits128K+~7.3~6.3~910
Nemotron
Nemotron 3.5 Lightning 30B-A3B Aug 2026Q8_035 GBfits128K+~44~42~6,300
Qwen
Qwen3.8 Flash-Next 125B-A6B Aug 2026Q6_K104 GBfits128K+~34~30~3,600
Qwen3.8 27B Aug 2026 (your pick)Q8_031 GBfits128K+~6.7~6.3~810
Qwen3.6 27B Apr 2026Q8_031 GBfits128K+~6.7~6.3~810
Qwen3.6 35B-A3B Apr 2026Q8_039 GBfits128K+~48~43~7,300
Qwen3.5 9B Feb 2026Q8_011 GBfits128K+~20~18~2,400
Qwen3 Coder 480B-A35B Jul 2025Q4_K_M296 GBdoes not fit
Qwen3 235B-A22B Jul 2025Q3_K_M118 GBfits57K~15~11~990
Qwen3 32B Apr 2025Q8_038 GBfits128K+~5.3~4.5~670

Specifications

Memory
128 GB LPDDR5x-9400 unified
Memory bandwidth
300 GB/s
Bus width
256-bit
Shader cores
6,144
FP16 (dense)
125 TFLOPS
Form factor
14 inch laptop (ASUS ProArt P14 at launch)
CPU
20-core Arm CPU, 6,144-core Blackwell GPU
Architecture
N1X Grace Blackwell
Launched
2026
MSRP
$6,499

Source: manufacturer specifications.

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