Hardware Spec Index

Zephyra GX-4921 Prime 16GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX4921-PRIME · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index23,195 (Graphics Cards scale)
Category rank#30,282
Street price$639
Power240 W (TGP)
Performance per dollar36.30
Released2020

Specifications

BrandZephyra
ModelZephyra GX-4921 Prime
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed18 Gbps
Memory bandwidth576 GB/s
Shader units9,344
Boost clock2,429 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)240 W
Power connectors2× 8-pin PCIe
Recommended PSU650 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.0b, 3× DisplayPort 1.4
Resizable BARSupported
Card size2.5-slot, 256 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-4921 Prime 16GB GDDR6 Graphics Card”, https://vextor7.com/item/13575232 (accessed 2026-10-26).