Hardware Spec Index

Zephyra GX-4803 Ultra 16GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX4803-ULTRA · Released 2020 · Updated 2026-10-26

Key facts

Benchmark index36,765 (Graphics Cards scale)
Category rank#42,226
Street price$1,719
Power365 W (TGP)
Performance per dollar21.39
Released2020

Specifications

BrandZephyra
ModelZephyra GX-4803 Ultra
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed18 Gbps
Memory bandwidth576 GB/s
Shader units15,872
Boost clock1,746 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)365 W
Power connectors3× 8-pin PCIe
Recommended PSU800 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.0b, 3× DisplayPort 1.4
Resizable BARSupported
Card size3-slot, 311 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, “Zephyra GX-4803 Ultra 16GB GDDR6 Graphics Card”, https://vextor7.com/item/41583571 (accessed 2026-10-26).