Hardware Spec Index

Kyndral GX-6621 Prime 16GB GDDR6X Graphics Card

Graphics Cards · Kyndral · SKU GX6621-PRIME · Released 2024 · Updated 2026-10-26

Key facts

Benchmark index29,785 (Graphics Cards scale)
Category rank#42,043
Street price$1,139
Power300 W (TGP)
Performance per dollar26.15
Released2024

Specifications

BrandKyndral
ModelKyndral GX-6621 Prime
Video memory16 GB GDDR6X
Memory bus256-bit
Memory speed23 Gbps
Memory bandwidth736 GB/s
Shader units12,672
Boost clock2,177 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)300 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, 277 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-6621 Prime 16GB GDDR6X Graphics Card”, https://vextor7.com/item/6525512 (accessed 2026-10-26).