Hardware Spec Index

Kyndral GX-6477 Ultra 12GB GDDR6 Graphics Card

Graphics Cards · Kyndral · SKU GX6477-ULTRA · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index18,768 (Graphics Cards scale)
Category rank#31,706
Street price$389
Power195 W (TGP)
Performance per dollar48.25
Released2021

Specifications

BrandKyndral
ModelKyndral GX-6477 Ultra
Video memory12 GB GDDR6
Memory bus192-bit
Memory speed16 Gbps
Memory bandwidth384 GB/s
Shader units6,912
Boost clock1,734 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)195 W
Power connectors2× 8-pin PCIe
Recommended PSU600 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2.5-slot, 239 mm

Related guides

How Much VRAM Do You Need? 1080p, 1440p, 4K and AIResizable BAR (ReBAR) ExplainedGDDR7 Memory ExplainedChoosing a GPU for 1440p GamingChoosing a GPU for 4K GamingPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Kyndral GX-6477 Ultra 12GB GDDR6 Graphics Card”, https://vextor7.com/item/1201696 (accessed 2026-10-26).