Hardware Spec Index

Teralux GX-3866 Ultra 12GB GDDR6 Graphics Card

Graphics Cards · Teralux · SKU GX3866-ULTRA · Released 2023 · Updated 2026-10-27

Key facts

Benchmark index19,022 (Graphics Cards scale)
Category rank#12,733
Street price$439
Power210 W (TGP)
Performance per dollar43.33
Released2023

Specifications

BrandTeralux
ModelTeralux GX-3866 Ultra
Video memory12 GB GDDR6
Memory bus192-bit
Memory speed18 Gbps
Memory bandwidth432 GB/s
Shader units7,552
Boost clock2,574 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)210 W
Power connectors2× 8-pin PCIe
Recommended PSU650 W
Ray tracingHardware-accelerated
UpscalingFSR 3
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2.5-slot, 251 mm

Related guides

How Much VRAM Do You Need? 1080p, 1440p, 4K and AIResizable BAR (ReBAR) ExplainedGDDR7 Memory ExplainedChoosing a GPU for 1440p GamingChoosing a GPU for 4K GamingPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Teralux GX-3866 Ultra 12GB GDDR6 Graphics Card”, https://vextor7.com/item/93358738 (accessed 2026-10-27).