Hardware Spec Index

Kyndral GX-6621 Ultra 16GB GDDR7 Graphics Card

Graphics Cards · Kyndral · SKU GX6621-ULTRA · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index33,013 (Graphics Cards scale)
Category rank#4,473
Street price$1,139
Power410 W (TGP)
Performance per dollar28.98
Released2025

Specifications

BrandKyndral
ModelKyndral GX-6621 Ultra
Video memory16 GB GDDR7
Memory bus256-bit
Memory speed32 Gbps
Memory bandwidth1,024 GB/s
Shader units13,824
Boost clock2,864 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)410 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU850 W
Ray tracingHardware-accelerated
UpscalingXeSS 2
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size3.5-slot, 291 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-6621 Ultra 16GB GDDR7 Graphics Card”, https://vextor7.com/item/32938607 (accessed 2026-10-25).