Hardware Spec Index

Kyndral GX-6643 Pro 8GB GDDR6 Graphics Card

Graphics Cards · Kyndral · SKU GX6643-PRO · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index18,449 (Graphics Cards scale)
Category rank#23,157
Street price$369
Power195 W (TGP)
Performance per dollar50.00
Released2021

Specifications

BrandKyndral
ModelKyndral GX-6643 Pro
Video memory8 GB GDDR6
Memory bus128-bit
Memory speed20 Gbps
Memory bandwidth320 GB/s
Shader units6,912
Boost clock1,748 MHz
Bus interfacePCIe 4.0 x8
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, 234 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-6643 Pro 8GB GDDR6 Graphics Card”, https://vextor7.com/item/97276024 (accessed 2026-10-19).