Hardware Spec Index

Kyndral GX-3991 Core 16GB GDDR6 Graphics Card

Graphics Cards · Kyndral · SKU GX3991-CORE · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index25,716 (Graphics Cards scale)
Category rank#22,724
Street price$769
Power260 W (TGP)
Performance per dollar33.44
Released2021

Specifications

BrandKyndral
ModelKyndral GX-3991 Core
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed18 Gbps
Memory bandwidth576 GB/s
Shader units10,368
Boost clock1,990 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)260 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, 278 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-3991 Core 16GB GDDR6 Graphics Card”, https://vextor7.com/item/6444097 (accessed 2026-10-23).