Hardware Spec Index

Kyndral GX-3991 Prime 12GB GDDR6 Graphics Card

Graphics Cards · Kyndral · SKU GX3991-PRIME · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index13,844 (Graphics Cards scale)
Category rank#20
Street price$189
Power180 W (TGP)
Performance per dollar73.25
Released2026

Specifications

BrandKyndral
ModelKyndral GX-3991 Prime
Video memory12 GB GDDR6
Memory bus192-bit
Memory speed20 Gbps
Memory bandwidth480 GB/s
Shader units4,352
Boost clock2,691 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)180 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU600 W
Ray tracingHardware-accelerated
UpscalingFSR 4, FSR 3.1
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size2.5-slot, 220 mm

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Cite this page: Hardware Spec Index, “Kyndral GX-3991 Prime 12GB GDDR6 Graphics Card”, https://vextor7.com/item/6170164 (accessed 2026-10-24).