Hardware Spec Index

Kyndral GX-6391 Max 12GB GDDR6 Graphics Card

Graphics Cards · Kyndral · SKU GX6391-MAX · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index23,634 (Graphics Cards scale)
Category rank#3,357
Street price$689
Power255 W (TGP)
Performance per dollar34.30
Released2021

Specifications

BrandKyndral
ModelKyndral GX-6391 Max
Video memory12 GB GDDR6
Memory bus192-bit
Memory speed18 Gbps
Memory bandwidth432 GB/s
Shader units10,240
Boost clock2,090 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)255 W
Power connectors3× 8-pin PCIe
Recommended PSU700 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2.5-slot, 258 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-6391 Max 12GB GDDR6 Graphics Card”, https://vextor7.com/item/93480052 (accessed 2026-10-22).