Hardware Spec Index

Zephyra GX-4978 XT 16GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX4978-XT · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index34,969 (Graphics Cards scale)
Category rank#12,078
Street price$1,409
Power340 W (TGP)
Performance per dollar24.82
Released2024

Specifications

BrandZephyra
ModelZephyra GX-4978 XT
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed16 Gbps
Memory bandwidth512 GB/s
Shader units14,592
Boost clock2,400 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)340 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingFSR 3
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 305 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-4978 XT 16GB GDDR6 Graphics Card”, https://vextor7.com/item/479446 (accessed 2026-10-20).