Hardware Spec Index

Zephyra GX-8403 XT 16GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX8403-XT · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index31,424 (Graphics Cards scale)
Category rank#31,455
Street price$979
Power305 W (TGP)
Performance per dollar32.10
Released2019

Specifications

BrandZephyra
ModelZephyra GX-8403 XT
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed14 Gbps
Memory bandwidth448 GB/s
Shader units12,672
Boost clock1,938 MHz
Bus interfacePCIe 3.0 x16
Total graphics power (TGP)305 W
Power connectors3× 8-pin PCIe
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.0b, 3× DisplayPort 1.4
Resizable BARSupported (firmware update)
Card size3-slot, 279 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-8403 XT 16GB GDDR6 Graphics Card”, https://vextor7.com/item/52942909 (accessed 2026-10-22).