Hardware Spec Index

Nexora GX-3991 Pro 16GB GDDR6X Graphics Card

Graphics Cards · Nexora · SKU GX3991-PRO · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index31,343 (Graphics Cards scale)
Category rank#4,387
Street price$1,379
Power335 W (TGP)
Performance per dollar22.73
Released2023

Specifications

BrandNexora
ModelNexora GX-3991 Pro
Video memory16 GB GDDR6X
Memory bus256-bit
Memory speed22.4 Gbps
Memory bandwidth717 GB/s
Shader units14,336
Boost clock2,023 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)335 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingDLSS 3
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 294 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-3991 Pro 16GB GDDR6X Graphics Card”, https://vextor7.com/item/8977959 (accessed 2026-10-20).