Hardware Spec Index

Zephyra GX-5644 Ultra 24GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX5644-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index40,782 (Graphics Cards scale)
Category rank#16,826
Street price$2,139
Power400 W (TGP)
Performance per dollar19.07
Released2020

Specifications

BrandZephyra
ModelZephyra GX-5644 Ultra
Video memory24 GB GDDR6
Memory bus384-bit
Memory speed18 Gbps
Memory bandwidth864 GB/s
Shader units18,048
Boost clock2,386 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)400 W
Power connectors3× 8-pin PCIe
Recommended PSU800 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.0b, 3× DisplayPort 1.4
Resizable BARSupported
Card size3-slot, 333 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-5644 Ultra 24GB GDDR6 Graphics Card”, https://vextor7.com/item/76355247 (accessed 2026-10-19).