Hardware Spec Index

Zephyra GX-3991 Pro 32GB GDDR7 Graphics Card

Graphics Cards · Zephyra · SKU GX3991-PRO · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index38,981 (Graphics Cards scale)
Category rank#15,367
Street price$1,939
Power510 W (TGP)
Performance per dollar20.10
Released2026

Specifications

BrandZephyra
ModelZephyra GX-3991 Pro
Video memory32 GB GDDR7
Memory bus512-bit
Memory speed30 Gbps
Memory bandwidth1,920 GB/s
Shader units17,920
Boost clock2,827 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)510 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU950 W
Ray tracingHardware-accelerated
UpscalingXeSS 2
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size3.5-slot, 328 mm

Related guides

How Much VRAM Do You Need? 1080p, 1440p, 4K and AIResizable BAR (ReBAR) ExplainedGDDR7 Memory ExplainedPCIe 5.0 ExplainedPCIe 4.0 vs PCIe 5.0Choosing a GPU for 4K Gaming

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Cite this page: Hardware Spec Index, “Zephyra GX-3991 Pro 32GB GDDR7 Graphics Card”, https://vextor7.com/item/4883413 (accessed 2026-10-22).