Hardware Spec Index

Kyndral GX-3991 Core 16GB GDDR6X Graphics Card

Graphics Cards · Kyndral · SKU GX3991-CORE · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index28,649 (Graphics Cards scale)
Category rank#8,216
Street price$839
Power280 W (TGP)
Performance per dollar34.15
Released2024

Specifications

BrandKyndral
ModelKyndral GX-3991 Core
Video memory16 GB GDDR6X
Memory bus256-bit
Memory speed19 Gbps
Memory bandwidth608 GB/s
Shader units11,520
Boost clock2,531 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)280 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU700 W
Ray tracingHardware-accelerated
UpscalingXeSS 2
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 287 mm

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Cite this page: Hardware Spec Index, “Kyndral GX-3991 Core 16GB GDDR6X Graphics Card”, https://vextor7.com/item/45307803 (accessed 2026-10-19).