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ProductNVIDIA DGX SparkApple Mac Studio (M3 Ultra)NVIDIA GeForce RTX 4090Seasonic PRIME TX-1600 ATX 3.1
TypeComplete systemComplete systemStandalone componentStandalone component
PricePrice not verifiedPrice not verifiedPrice not verifiedPrice not verified
Price source checkedNot verifiedNot verifiedNot verifiedNot verified
ManufacturerNVIDIAAppleNVIDIASeasonic
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: 24 GB GDDR6XOutput: 1600 W
Spec 2Memory: 128 GB unified LPDDR5xChip: M3 UltraInterface: PCIe 4.0 x16Efficiency: 80 PLUS Titanium
Spec 3Storage: Up to 4 TB NVMeSoftware: MLX, llama.cppTBP: 450 WConnector: 12V-2x6
PowerApprox. 240 W external PSU~480 W max450 W, 16-pin connector; 850 W PSU recommended1600 W
HostStandalone desktop; ConnectX-7 for pairing two unitsStandalonePCIe x16 slot; discontinued, mostly used/refurbished stockMulti-GPU workstations
WarrantyPer NVIDIA/OEM partner1 year (Apple)Varies; often seller warranty on used units12 years (Seasonic)