Hardware Spec Index

Kyndral GX-4639 Ultra 24GB GDDR6X Graphics Card

Graphics Cards · Kyndral · SKU GX4639-ULTRA · Released 2021 · Updated 2026-10-21

Key facts

Benchmark index39,683 (Graphics Cards scale)
Category rank#27,912
Street price$2,209
Power425 W (TGP)
Performance per dollar17.96
Released2021

Specifications

BrandKyndral
ModelKyndral GX-4639 Ultra
Video memory24 GB GDDR6X
Memory bus384-bit
Memory speed22.4 Gbps
Memory bandwidth1,075 GB/s
Shader units19,200
Boost clock2,106 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)425 W
Power connectors3× 8-pin PCIe
Recommended PSU850 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3.5-slot, 340 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-4639 Ultra 24GB GDDR6X Graphics Card”, https://vextor7.com/item/15475686 (accessed 2026-10-21).