Hardware Spec Index

Zephyra GX-4991 Pro 24GB GDDR6X Graphics Card

Graphics Cards · Zephyra · SKU GX4991-PRO · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index34,527 (Graphics Cards scale)
Category rank#41,360
Street price$1,439
Power335 W (TGP)
Performance per dollar23.99
Released2022

Specifications

BrandZephyra
ModelZephyra GX-4991 Pro
Video memory24 GB GDDR6X
Memory bus384-bit
Memory speed21 Gbps
Memory bandwidth1,008 GB/s
Shader units14,336
Boost clock1,897 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)335 W
Power connectors3× 8-pin PCIe
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingFSR 2
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 298 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-4991 Pro 24GB GDDR6X Graphics Card”, https://vextor7.com/item/5034489 (accessed 2026-10-21).