Hardware Spec Index

Kyndral GX-6639 Core 12GB GDDR7 Graphics Card

Graphics Cards · Kyndral · SKU GX6639-CORE · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index22,687 (Graphics Cards scale)
Category rank#12,704
Street price$709
Power305 W (TGP)
Performance per dollar32.00
Released2025

Specifications

BrandKyndral
ModelKyndral GX-6639 Core
Video memory12 GB GDDR7
Memory bus192-bit
Memory speed28 Gbps
Memory bandwidth672 GB/s
Shader units9,472
Boost clock2,322 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)305 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingFSR 4, FSR 3.1
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size3-slot, 259 mm

Related guides

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Cite this page: Hardware Spec Index, “Kyndral GX-6639 Core 12GB GDDR7 Graphics Card”, https://vextor7.com/item/424977 (accessed 2026-10-20).