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ProductApple Mac Studio (M3 Ultra)NVIDIA GeForce RTX 4090NVIDIA RTX A4000Samsung PM9A3 3.84TB U.2 NVMe
TypeComplete systemStandalone componentStandalone componentStandalone component
PricePrice not verifiedPrice not verifiedPrice not verifiedPrice not verified
Price source checkedNot verifiedNot verifiedNot verifiedNot verified
ManufacturerAppleNVIDIANVIDIASamsung
Marketplace links0 exact listings · 6 searches0 exact listings · 6 searches0 exact listings · 6 searches0 exact listings · 6 searches
Spec 1Memory: Up to 512 GB unifiedMemory: 24 GB GDDR6XMemory: 16 GB GDDR6 ECCCapacity: 3.84 TB
Spec 2Chip: M3 UltraInterface: PCIe 4.0 x16Interface: PCIe 4.0 x16Interface: PCIe 4.0 x4 NVMe
Spec 3Software: MLX, llama.cppTBP: 450 WPower: 140 WForm: U.2 2.5 in
Power~480 W max450 W, 16-pin connector; 850 W PSU recommended140 W, 1× 6-pinUp to ~13.5 W
HostStandalonePCIe x16 slot; discontinued, mostly used/refurbished stockPCIe x16 slotU.2 bay or adapter required
Warranty1 year (Apple)Varies; often seller warranty on used units3 years (via partner)Varies; OEM drives often seller warranty