Hardware Spec Index

Zephyra GX-6491 Ultra 12GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX6491-ULTRA · Released 2023 · Updated 2026-10-23

Key facts

Benchmark index22,913 (Graphics Cards scale)
Category rank#48,025
Street price$549
Power230 W (TGP)
Performance per dollar41.74
Released2023

Specifications

BrandZephyra
ModelZephyra GX-6491 Ultra
Video memory12 GB GDDR6
Memory bus192-bit
Memory speed18 Gbps
Memory bandwidth432 GB/s
Shader units8,704
Boost clock1,983 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)230 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, 253 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-6491 Ultra 12GB GDDR6 Graphics Card”, https://vextor7.com/item/91581501 (accessed 2026-10-23).