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NVIDIA DGX Spark vs STORMCRAFT Phantom Gaming PC

These are not really competitors. The DGX Spark is a small AI development box built around the GB10 Grace Blackwell Superchip, 128 GB of unified memory and a CUDA software stack, aimed at running and fine-tuning models up to about 200 billion parameters locally. The STORMCRAFT Phantom is a full gaming tower with a Ryzen 7 9800X3D and an RTX 5090, built for games, 3D work and CUDA-accelerated apps on Windows 11. Buy the Spark to develop AI; buy the Phantom to play, render and game with a top GPU.

  • Choose the DGX Spark if you develop or fine-tune large AI models locally and want 128 GB of unified memory in a 1.2 kg box.
  • Choose the STORMCRAFT Phantom if you want a gaming and workstation tower with an RTX 5090, a 9800X3D and Windows 11 out of the box.

Prices

  • NVIDIA DGX Spark: $7,500.00 at Alibaba.com (checked today)
  • STORMCRAFT Phantom Gaming PC: $8,999.99 at Walmart (checked today)
  • Difference: the NVIDIA DGX Spark is $1,499.99 cheaper than the STORMCRAFT Phantom Gaming PC today
NVIDIA
NVIDIA DGX Spark

NVIDIA DGX Spark
$7,500.00at Alibaba.comChecked 6 h ago
See all prices and details
Visit Alibaba.com
Pros
  • 128 GB unified memory fits models up to about 200 billion parameters
  • Tiny, light and quiet next to a tower
  • CUDA and the NVIDIA AI stack work out of the box
  • 10GbE and WiFi 7 for linking two units or a workstation
Cons
  • Arm CPU and DGX OS limit everyday desktop software
  • No discrete upgrade path for GPU or memory
  • Not built for gaming
  • Best value only if you actually run large models
STORMCRAFT
STORMCRAFT Gaming PC PHANTOM

STORMCRAFT Phantom Gaming PC

STORMCRAFT Gaming PC PHANTOM

$8,999.99at WalmartChecked 5 h ago
See all prices and details
Visit Walmart
Pros
  • RTX 5090 is one of the fastest consumer GPUs for games and rendering
  • 9800X3D is a top gaming CPU
  • Standard parts are easy to upgrade and repair
  • Windows 11 runs everything mainstream
Cons
  • 32 GB system RAM is modest for heavy AI or 3D work
  • Large tower with a 1300 W PSU draws far more power
  • No preloaded AI development stack
  • Only 2 TB of storage

What separates them

NVIDIA DGX SparkSTORMCRAFT Phantom Gaming PC
Primary purposeAI prototyping, fine-tuning and inference on DGX OSGaming, 3D rendering and general Windows workloads
Memory128 GB LPDDR5x unified, shared between CPU and GPU32 GB DDR5 6000 MHz, separate from 32 GB of RTX 5090 VRAM
GPU compute6,144 CUDA cores, about 1 petaFLOP of AI performanceRTX 5090, far more CUDA cores and much higher raw graphics throughput
CPU20-core Arm (10 Cortex-X925 + 10 Cortex-A725)8-core AMD Ryzen 7 9800X3D, x86 with 3D V-Cache
Operating systemNVIDIA DGX OS, Linux-based, AI stack preloadedWindows 11 Home, runs games and mainstream apps
Size and power1.2 kg, 5.91 x 5.91 x 1.99 in, 240 W external supplyFull tower with 360 mm AIO and 1300 W PSU
Storage1 TB or 4 TB NVMe with self-encryption2 TB NVMe SSD
UpgradabilityMemory and GPU are soldered to the Superchip; storage onlyStandard desktop parts, GPU, RAM and drives can be swapped

Price history

  • NVIDIA DGX Spark: lowest $7,500.00 on Nov 11 at Alibaba.com.
  • STORMCRAFT Phantom Gaming PC: lowest $8,999.99 on Nov 11 at Newegg.

Prices at every store

NVIDIA DGX Spark

  • Alibaba.comNew

    In stock

    $7,500.00+ $25.10 shippingChecked 6 h ago
    Visit Alibaba.com
  • NeweggNew

    In stock

    $9,399.00Free shippingChecked 2 h ago
    Visit Newegg
  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $7,799.99Free shippingChecked 6 h ago
    Visit Amazon
  • WalmartNew

    Out of stockSold by Joes Tech ShopReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $8,250.00Free shippingChecked 2 h ago
    Visit Walmart

Store links may earn us a commission. Some prices via Klarna.

All 4 stores and price history →

STORMCRAFT Phantom Gaming PC

  • NeweggNew

    In stock

    $8,999.99Free shippingChecked 5 h ago
    Visit Newegg
  • WalmartNew

    In stockSold by Newegg Inc.Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.

    $8,999.99Free shippingChecked 5 h ago
    Visit Walmart

Store links may earn us a commission. Some prices via Klarna.

All 2 stores and price history →

Specs compared

SpecNVIDIA DGX SparkSTORMCRAFT Phantom Gaming PC
Processor20-core Arm processor (10 Cortex-X925 + 10 Cort…AMD Ryzen 7 9800X3D
Memory128 GB LPDDR5x unified system memory32GB DDR5 6000MHz RGB
Storage1 TB or 4 TB NVMe M.2 with self-encryption2TB NVMe SSD
Power supply240W external power supply (included)1300W PSU
colorGoldBlack
Memory bandwidth273 GB/s—
Ports4x USB Type-C, 1x HDMI 2.1a—
Weight1.2 kg (2.6 lbs)—
CUDA cores6,144—
Model supportAI models up to 200 billion parameters—
Graphics card—NVIDIA GeForce RTX 5090
CPU cooler—360mm AIO
Show all 20 specsShow fewer specs
SpecNVIDIA DGX SparkSTORMCRAFT Phantom Gaming PC
Operating system—Windows 11 Home
Number Of Cores—8-core
Graphics Processor—NVIDIA GPU
Style—Tower
Hard Drive Type—Solid State Drive
Processor Speed—4.7 GHz
Installed Memory—32 GB RAM
Drive Capacity—2 TB Storage

What reviewers say

NVIDIA DGX Spark

Hands-on coverage treats the DGX Spark as a niche developer tool: reviewers like the memory capacity and CUDA support in a tiny box, but note that its bandwidth and Arm platform keep it well behind full GPUs for heavy training.

What people mention
  • MemoryPraisedReviewers highlight the 128 GB unified pool as the reason it can hold models far bigger than consumer GPUs allow.
  • BandwidthCriticisedCommentators note 273 GB/s is low next to data-center GPUs, so training and inference are slower.
  • SoftwarePraisedThe preloaded NVIDIA AI stack and DGX OS are seen as a real convenience for getting started.
  • Arm compatibilityMixedThe Arm CPU is fine for AI tooling but some x86 desktop software needs workarounds.

Questions and answers

Which is better for running large language models locally?
The DGX Spark. Its 128 GB of unified memory holds models up to roughly 200 billion parameters, which the Phantom's 32 GB of system RAM and 32 GB of VRAM cannot. The Phantom is faster for smaller models that fit in its VRAM.
Can the Phantom play games and the Spark not?
Yes. The Phantom runs Windows 11 with an RTX 5090 and a Ryzen 7 9800X3D, a top-tier gaming setup. The Spark runs DGX OS on Arm and is not a gaming machine.
Which is better for video editing and 3D rendering?
The Phantom, for most people. The RTX 5090 and x86 CPU run Adobe, Blender and DaVinci Resolve natively on Windows. The Spark's Arm platform depends on software that supports it.
Is the Spark worth stepping up to over a gaming PC for AI work?
Only if your models need more than about 32 GB of memory. For small models and inference, an RTX 5090 tower is faster and more flexible. For fine-tuning large models locally, the Spark's unified memory is the reason to pick it.
Which is easier to upgrade?
The Phantom. It uses standard desktop parts, so you can change the GPU, RAM and drives. On the Spark, memory and GPU are fixed to the Superchip; only storage is user-replaceable.
Which draws less power and takes less space?
The Spark. It weighs 1.2 kg and uses a 240 W external supply. The Phantom is a full tower with a 360 mm liquid cooler and a 1300 W power supply.

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