Hardware Spec Index

Kyndral GX-3991 Core 32GB GDDR6X Graphics Card

Graphics Cards · Kyndral · SKU GX3991-CORE · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index44,108 (Graphics Cards scale)
Category rank#11,412
Street price$2,259
Power435 W (TGP)
Performance per dollar19.53
Released2023

Specifications

BrandKyndral
ModelKyndral GX-3991 Core
Video memory32 GB GDDR6X
Memory bus512-bit
Memory speed19 Gbps
Memory bandwidth1,216 GB/s
Shader units19,840
Boost clock2,049 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)435 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU850 W
Ray tracingHardware-accelerated
UpscalingXeSS
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3.5-slot, 338 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-3991 Core 32GB GDDR6X Graphics Card”, https://vextor7.com/item/321428 (accessed 2026-10-21).