Hardware Spec Index

Zephyra GX-3420 Ultra 24GB GDDR6X Graphics Card

Graphics Cards · Zephyra · SKU GX3420-ULTRA · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index27,613 (Graphics Cards scale)
Category rank#5,293
Street price$959
Power300 W (TGP)
Performance per dollar28.79
Released2021

Specifications

BrandZephyra
ModelZephyra GX-3420 Ultra
Video memory24 GB GDDR6X
Memory bus384-bit
Memory speed22.4 Gbps
Memory bandwidth1,075 GB/s
Shader units12,416
Boost clock1,764 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)300 W
Power connectors3× 8-pin PCIe
Recommended PSU700 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 278 mm

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Cite this page: Hardware Spec Index, “Zephyra GX-3420 Ultra 24GB GDDR6X Graphics Card”, https://vextor7.com/item/3582952 (accessed 2026-10-23).