Hardware Spec Index

Zephyra GX-8644 Ultra 24GB GDDR6X Graphics Card

Graphics Cards · Zephyra · SKU GX8644-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index39,850 (Graphics Cards scale)
Category rank#41,359
Street price$1,749
Power400 W (TGP)
Performance per dollar22.78
Released2022

Specifications

BrandZephyra
ModelZephyra GX-8644 Ultra
Video memory24 GB GDDR6X
Memory bus384-bit
Memory speed21 Gbps
Memory bandwidth1,008 GB/s
Shader units17,792
Boost clock2,383 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)400 W
Power connectors3× 8-pin PCIe
Recommended PSU800 W
Ray tracingHardware-accelerated
UpscalingFSR 2
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 318 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-8644 Ultra 24GB GDDR6X Graphics Card”, https://vextor7.com/item/3208702 (accessed 2026-10-21).