Hardware Spec Index

Zephyra GX-3918 XT 12GB GDDR6X Graphics Card

Graphics Cards · Zephyra · SKU GX3918-XT · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index26,822 (Graphics Cards scale)
Category rank#36,845
Street price$999
Power280 W (TGP)
Performance per dollar26.85
Released2021

Specifications

BrandZephyra
ModelZephyra GX-3918 XT
Video memory12 GB GDDR6X
Memory bus192-bit
Memory speed23 Gbps
Memory bandwidth552 GB/s
Shader units11,520
Boost clock2,393 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)280 W
Power connectors3× 8-pin PCIe
Recommended PSU700 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 275 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-3918 XT 12GB GDDR6X Graphics Card”, https://vextor7.com/item/832064 (accessed 2026-10-21).