Hardware Spec Index

Teralux GX-5666 Ultra 8GB GDDR6 Graphics Card

Graphics Cards · Teralux · SKU GX5666-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index12,025 (Graphics Cards scale)
Category rank#33,248
Street price$139
Power125 W (TGP)
Performance per dollar86.51
Released2021

Specifications

BrandTeralux
ModelTeralux GX-5666 Ultra
Video memory8 GB GDDR6
Memory bus128-bit
Memory speed20 Gbps
Memory bandwidth320 GB/s
Shader units3,200
Boost clock2,058 MHz
Bus interfacePCIe 4.0 x8
Total graphics power (TGP)125 W
Power connectors1× 8-pin PCIe
Recommended PSU550 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2-slot, 214 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-5666 Ultra 8GB GDDR6 Graphics Card”, https://vextor7.com/item/8928496 (accessed 2026-10-21).