Hardware Spec Index

Zephyra GX-3990 Ultra 16GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX3990-ULTRA · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index21,749 (Graphics Cards scale)
Category rank#30,436
Street price$539
Power230 W (TGP)
Performance per dollar40.35
Released2024

Specifications

BrandZephyra
ModelZephyra GX-3990 Ultra
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed18 Gbps
Memory bandwidth576 GB/s
Shader units8,704
Boost clock2,319 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)230 W
Power connectors2× 8-pin PCIe
Recommended PSU650 W
Ray tracingHardware-accelerated
UpscalingXeSS 2
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2.5-slot, 259 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-3990 Ultra 16GB GDDR6 Graphics Card”, https://vextor7.com/item/17513688 (accessed 2026-10-19).