Hardware Spec Index

Kyndral GX-8639 Ultra 16GB GDDR7 Graphics Card

Graphics Cards · Kyndral · SKU GX8639-ULTRA · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index25,740 (Graphics Cards scale)
Category rank#19,200
Street price$739
Power320 W (TGP)
Performance per dollar34.83
Released2026

Specifications

BrandKyndral
ModelKyndral GX-8639 Ultra
Video memory16 GB GDDR7
Memory bus256-bit
Memory speed28 Gbps
Memory bandwidth896 GB/s
Shader units10,112
Boost clock2,478 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)320 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingDLSS 4 (frame generation)
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size3-slot, 258 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-8639 Ultra 16GB GDDR7 Graphics Card”, https://vextor7.com/item/42322441 (accessed 2026-10-20).