Hardware Spec Index

Zephyra GX-4638 Prime 16GB GDDR7 Graphics Card

Graphics Cards · Zephyra · SKU GX4638-PRIME · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index20,622 (Graphics Cards scale)
Category rank#32,275
Street price$469
Power255 W (TGP)
Performance per dollar43.97
Released2025

Specifications

BrandZephyra
ModelZephyra GX-4638 Prime
Video memory16 GB GDDR7
Memory bus256-bit
Memory speed28 Gbps
Memory bandwidth896 GB/s
Shader units7,552
Boost clock2,423 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)255 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU700 W
Ray tracingHardware-accelerated
UpscalingFSR 4, FSR 3.1
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size2.5-slot, 246 mm

Related guides

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Cite this page: Hardware Spec Index, “Zephyra GX-4638 Prime 16GB GDDR7 Graphics Card”, https://vextor7.com/item/13624934 (accessed 2026-10-20).