Hardware Spec Index

Kyndral GX-6643 Prime 8GB GDDR6 Graphics Card

Graphics Cards · Kyndral · SKU GX6643-PRIME · Released 2022 · Updated 2026-10-25

Key facts

Benchmark index12,266 (Graphics Cards scale)
Category rank#4,675
Street price$169
Power125 W (TGP)
Performance per dollar72.58
Released2022

Specifications

BrandKyndral
ModelKyndral GX-6643 Prime
Video memory8 GB GDDR6
Memory bus128-bit
Memory speed20 Gbps
Memory bandwidth320 GB/s
Shader units3,200
Boost clock2,005 MHz
Bus interfacePCIe 4.0 x8
Total graphics power (TGP)125 W
Power connectors1× 8-pin PCIe
Recommended PSU550 W
Ray tracingHardware-accelerated
UpscalingXeSS
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2-slot, 218 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 Prime 8GB GDDR6 Graphics Card”, https://vextor7.com/item/52323293 (accessed 2026-10-25).