Hardware Spec Index

Zephyra GX-3668 Ultra 12GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX3668-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index21,855 (Graphics Cards scale)
Category rank#32,529
Street price$519
Power220 W (TGP)
Performance per dollar42.11
Released2021

Specifications

BrandZephyra
ModelZephyra GX-3668 Ultra
Video memory12 GB GDDR6
Memory bus192-bit
Memory speed14 Gbps
Memory bandwidth336 GB/s
Shader units8,320
Boost clock2,560 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)220 W
Power connectors2× 8-pin PCIe
Recommended PSU650 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2.5-slot, 249 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-3668 Ultra 12GB GDDR6 Graphics Card”, https://vextor7.com/item/2433767 (accessed 2026-10-22).