Hardware Spec Index

Zephyra GX-6420 Pro 16GB GDDR6X Graphics Card

Graphics Cards · Zephyra · SKU GX6420-PRO · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index35,395 (Graphics Cards scale)
Category rank#22,792
Street price$1,879
Power375 W (TGP)
Performance per dollar18.84
Released2023

Specifications

BrandZephyra
ModelZephyra GX-6420 Pro
Video memory16 GB GDDR6X
Memory bus256-bit
Memory speed19 Gbps
Memory bandwidth608 GB/s
Shader units16,384
Boost clock2,138 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)375 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU800 W
Ray tracingHardware-accelerated
UpscalingXeSS
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 321 mm

Related guides

How Much VRAM Do You Need? 1080p, 1440p, 4K and AIResizable BAR (ReBAR) ExplainedChoosing a GPU for 1440p GamingChoosing a GPU for 4K GamingGDDR7 Memory ExplainedPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Zephyra GX-6420 Pro 16GB GDDR6X Graphics Card”, https://vextor7.com/item/13664209 (accessed 2026-10-21).