Hardware Spec Index

Zephyra GX-1663 XT 16GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX1663-XT · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index31,253 (Graphics Cards scale)
Category rank#18,704
Street price$1,199
Power305 W (TGP)
Performance per dollar26.07
Released2021

Specifications

BrandZephyra
ModelZephyra GX-1663 XT
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed20 Gbps
Memory bandwidth640 GB/s
Shader units12,928
Boost clock2,211 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)305 W
Power connectors3× 8-pin PCIe
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size3-slot, 296 mm

Related guides

How Much VRAM Do You Need? 1080p, 1440p, 4K and AIResizable BAR (ReBAR) ExplainedChoosing a GPU for 1440p GamingGDDR7 Memory ExplainedChoosing a GPU for 4K GamingPCIe 5.0 Explained

Similar Graphics Cards

ModelBenchmarkPriceCompare
Veltrix GX-4175 Plus 8GB GDDR6 Graphics Card12,780$209Compare
Nexora GX-3221 Max 16GB GDDR6 Graphics Card29,957$919Compare
Zephyra GX-2868 Prime 32GB GDDR6X Graphics Card40,645$2,079Compare
Zephyra GX-3736 Prime 8GB GDDR7 Graphics Card15,897$279Compare
Teralux GX-6528 Edge 12GB GDDR6 Graphics Card23,079$659Compare
Orbita GX-3150 Core 8GB GDDR6 Graphics Card19,435$429Compare

All Graphics Cards · JSON

Cite this page: Hardware Spec Index, “Zephyra GX-1663 XT 16GB GDDR6 Graphics Card”, https://vextor7.com/item/572009 (accessed 2026-10-19).