Hardware Spec Index

Nexora GX-8420 Ultra 16GB GDDR6 Graphics Card

Graphics Cards · Nexora · SKU GX8420-ULTRA · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index33,942 (Graphics Cards scale)
Category rank#1,091
Street price$1,319
Power335 W (TGP)
Performance per dollar25.73
Released2024

Specifications

BrandNexora
ModelNexora GX-8420 Ultra
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed20 Gbps
Memory bandwidth640 GB/s
Shader units14,336
Boost clock2,144 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)335 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingXeSS 2
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 293 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, “Nexora GX-8420 Ultra 16GB GDDR6 Graphics Card”, https://vextor7.com/item/359227 (accessed 2026-10-19).