Hardware Spec Index

Kyndral GX-6391 Ultra 24GB GDDR6X Graphics Card

Graphics Cards · Kyndral · SKU GX6391-ULTRA · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index32,267 (Graphics Cards scale)
Category rank#39,800
Street price$1,449
Power330 W (TGP)
Performance per dollar22.27
Released2023

Specifications

BrandKyndral
ModelKyndral GX-6391 Ultra
Video memory24 GB GDDR6X
Memory bus384-bit
Memory speed21 Gbps
Memory bandwidth1,008 GB/s
Shader units14,208
Boost clock2,319 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)330 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, 291 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-6391 Ultra 24GB GDDR6X Graphics Card”, https://vextor7.com/item/63668024 (accessed 2026-10-26).