Hardware Spec Index

Kyndral GX-8456 Ultra 16GB GDDR6X Graphics Card

Graphics Cards · Kyndral · SKU GX8456-ULTRA · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index28,787 (Graphics Cards scale)
Category rank#2,198
Street price$1,009
Power290 W (TGP)
Performance per dollar28.53
Released2023

Specifications

BrandKyndral
ModelKyndral GX-8456 Ultra
Video memory16 GB GDDR6X
Memory bus256-bit
Memory speed23 Gbps
Memory bandwidth736 GB/s
Shader units12,032
Boost clock2,116 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)290 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU700 W
Ray tracingHardware-accelerated
UpscalingDLSS 3
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 282 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-8456 Ultra 16GB GDDR6X Graphics Card”, https://vextor7.com/item/9059737 (accessed 2026-10-24).