Hardware Spec Index

Zephyra GX-4257 Ultra 12GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX4257-ULTRA · Released 2023 · Updated 2026-10-24

Key facts

Benchmark index24,762 (Graphics Cards scale)
Category rank#14,608
Street price$769
Power255 W (TGP)
Performance per dollar32.20
Released2023

Specifications

BrandZephyra
ModelZephyra GX-4257 Ultra
Video memory12 GB GDDR6
Memory bus192-bit
Memory speed18 Gbps
Memory bandwidth432 GB/s
Shader units9,984
Boost clock2,486 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)255 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU700 W
Ray tracingHardware-accelerated
UpscalingDLSS 3
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2.5-slot, 261 mm

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Cite this page: Hardware Spec Index, “Zephyra GX-4257 Ultra 12GB GDDR6 Graphics Card”, https://vextor7.com/item/32635175 (accessed 2026-10-24).