Hardware Spec Index

Zephyra GX-5643 XT 16GB GDDR7 Graphics Card

Graphics Cards · Zephyra · SKU GX5643-XT · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index28,752 (Graphics Cards scale)
Category rank#25,345
Street price$989
Power380 W (TGP)
Performance per dollar29.07
Released2026

Specifications

BrandZephyra
ModelZephyra GX-5643 XT
Video memory16 GB GDDR7
Memory bus256-bit
Memory speed30 Gbps
Memory bandwidth960 GB/s
Shader units12,672
Boost clock2,592 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)380 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU800 W
Ray tracingHardware-accelerated
UpscalingXeSS 2
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size3-slot, 285 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 1440p Gaming

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Cite this page: Hardware Spec Index, “Zephyra GX-5643 XT 16GB GDDR7 Graphics Card”, https://vextor7.com/item/97520875 (accessed 2026-10-24).