Hardware Spec Index

Nexora GX-6639 Ultra 16GB GDDR6 Graphics Card

Graphics Cards · Nexora · SKU GX6639-ULTRA · Released 2022 · Updated 2026-10-24

Key facts

Benchmark index25,303 (Graphics Cards scale)
Category rank#41,478
Street price$639
Power250 W (TGP)
Performance per dollar39.60
Released2022

Specifications

BrandNexora
ModelNexora GX-6639 Ultra
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed18 Gbps
Memory bandwidth576 GB/s
Shader units9,728
Boost clock2,056 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)250 W
Power connectors2× 8-pin PCIe
Recommended PSU650 W
Ray tracingHardware-accelerated
UpscalingXeSS
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2.5-slot, 260 mm

Related guides

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Cite this page: Hardware Spec Index, “Nexora GX-6639 Ultra 16GB GDDR6 Graphics Card”, https://vextor7.com/item/15089103 (accessed 2026-10-24).