Hardware Spec Index

Zephyra GX-4778 Prime 16GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX4778-PRIME · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index37,005 (Graphics Cards scale)
Category rank#31,429
Street price$1,389
Power360 W (TGP)
Performance per dollar26.64
Released2020

Specifications

BrandZephyra
ModelZephyra GX-4778 Prime
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed14 Gbps
Memory bandwidth448 GB/s
Shader units15,744
Boost clock1,814 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)360 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, 321 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-4778 Prime 16GB GDDR6 Graphics Card”, https://vextor7.com/item/2116889 (accessed 2026-10-25).