Hardware Spec Index

Kyndral GX-6421 Ultra 32GB GDDR7 Graphics Card

Graphics Cards · Kyndral · SKU GX6421-ULTRA · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index42,348 (Graphics Cards scale)
Category rank#46,920
Street price$2,499
Power565 W (TGP)
Performance per dollar16.95
Released2025

Specifications

BrandKyndral
ModelKyndral GX-6421 Ultra
Video memory32 GB GDDR7
Memory bus512-bit
Memory speed28 Gbps
Memory bandwidth1,792 GB/s
Shader units20,096
Boost clock2,359 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)565 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU1000 W
Ray tracingHardware-accelerated
UpscalingXeSS 2
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size3.5-slot, 344 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-6421 Ultra 32GB GDDR7 Graphics Card”, https://vextor7.com/item/68303983 (accessed 2026-10-19).