Hardware Spec Index

Kyndral GX-3991 Plus 16GB GDDR6X Graphics Card

Graphics Cards · Kyndral · SKU GX3991-PLUS · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index31,571 (Graphics Cards scale)
Category rank#9,710
Street price$1,139
Power310 W (TGP)
Performance per dollar27.72
Released2022

Specifications

BrandKyndral
ModelKyndral GX-3991 Plus
Video memory16 GB GDDR6X
Memory bus256-bit
Memory speed23 Gbps
Memory bandwidth736 GB/s
Shader units13,056
Boost clock1,892 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)310 W
Power connectors3× 8-pin PCIe
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingXeSS
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 287 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-3991 Plus 16GB GDDR6X Graphics Card”, https://vextor7.com/item/85965702 (accessed 2026-10-23).