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ProductNVIDIA DGX SparkApple Mac Studio (M3 Ultra)NVIDIA H100 PCIe 80GBAMD Radeon PRO W7900
TypeComplete systemComplete systemStandalone componentStandalone component
PricePrice not verifiedPrice not verifiedPrice not verifiedPrice not verified
Price source checkedNot verifiedNot verifiedNot verifiedNot verified
ManufacturerNVIDIAAppleNVIDIAAMD
Marketplace links0 exact listings · 6 searches0 exact listings · 6 searches0 exact listings · 6 searches0 exact listings · 6 searches
Spec 1Superchip: GB10 Grace BlackwellMemory: Up to 512 GB unifiedMemory: 80 GB HBM2eMemory: 48 GB GDDR6 ECC
Spec 2Memory: 128 GB unified LPDDR5xChip: M3 UltraInterface: PCIe 5.0 x16Interface: PCIe 4.0 x16
Spec 3Storage: Up to 4 TB NVMeSoftware: MLX, llama.cppPower: 350 WPower: 295 W
PowerApprox. 240 W external PSU~480 W max350 W, passive cooling295 W, 2× 8-pin
HostStandalone desktop; ConnectX-7 for pairing two unitsStandaloneServer chassis with front-to-back airflow; not for desktopsPCIe x16; ROCm support varies by framework
WarrantyPer NVIDIA/OEM partner1 year (Apple)Via authorized partner; check seller3 years (AMD)