Hardware Spec Index

Zephyra GX-4643 Ultra 12GB GDDR7 Graphics Card

Graphics Cards · Zephyra · SKU GX4643-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index25,328 (Graphics Cards scale)
Category rank#27,907
Street price$809
Power330 W (TGP)
Performance per dollar31.31
Released2026

Specifications

BrandZephyra
ModelZephyra GX-4643 Ultra
Video memory12 GB GDDR7
Memory bus192-bit
Memory speed32 Gbps
Memory bandwidth768 GB/s
Shader units10,496
Boost clock2,575 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)330 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingFSR 4, FSR 3.1
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size3-slot, 276 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-4643 Ultra 12GB GDDR7 Graphics Card”, https://vextor7.com/item/675591 (accessed 2026-10-19).