Hardware Spec Index

Kyndral GX-8645 Ultra 16GB GDDR6 Graphics Card

Graphics Cards · Kyndral · SKU GX8645-ULTRA · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index23,904 (Graphics Cards scale)
Category rank#23,473
Street price$679
Power260 W (TGP)
Performance per dollar35.20
Released2020

Specifications

BrandKyndral
ModelKyndral GX-8645 Ultra
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed16 Gbps
Memory bandwidth512 GB/s
Shader units10,368
Boost clock2,359 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)260 W
Power connectors3× 8-pin PCIe
Recommended PSU700 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.0b, 3× DisplayPort 1.4
Resizable BARSupported
Card size2.5-slot, 259 mm

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Cite this page: Hardware Spec Index, “Kyndral GX-8645 Ultra 16GB GDDR6 Graphics Card”, https://vextor7.com/item/5849652 (accessed 2026-10-20).