Hardware Spec Index

Kyndral GX-4645 XT 16GB GDDR6X Graphics Card

Graphics Cards · Kyndral · SKU GX4645-XT · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index31,953 (Graphics Cards scale)
Category rank#153
Street price$1,499
Power340 W (TGP)
Performance per dollar21.32
Released2023

Specifications

BrandKyndral
ModelKyndral GX-4645 XT
Video memory16 GB GDDR6X
Memory bus256-bit
Memory speed23 Gbps
Memory bandwidth736 GB/s
Shader units14,720
Boost clock2,578 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)340 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingFSR 3
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 307 mm

Related guides

How Much VRAM Do You Need? 1080p, 1440p, 4K and AIResizable BAR (ReBAR) ExplainedChoosing a GPU for 1440p GamingChoosing a GPU for 4K GamingGDDR7 Memory ExplainedPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Kyndral GX-4645 XT 16GB GDDR6X Graphics Card”, https://vextor7.com/item/81315550 (accessed 2026-10-26).