Hardware Spec Index

Zephyra GX-1638 Ultra 16GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX1638-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index38,240 (Graphics Cards scale)
Category rank#25,645
Street price$1,939
Power395 W (TGP)
Performance per dollar19.72
Released2019

Specifications

BrandZephyra
ModelZephyra GX-1638 Ultra
Video memory16 GB GDDR6
Memory bus256-bit
Memory speed18 Gbps
Memory bandwidth576 GB/s
Shader units17,536
Boost clock1,921 MHz
Bus interfacePCIe 3.0 x16
Total graphics power (TGP)395 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 (firmware update)
Card size3-slot, 328 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

Similar Graphics Cards

ModelBenchmarkPriceCompare
Veltrix GX-3270 Max 16GB GDDR6 Graphics Card19,054$499Compare
Teralux GX-4947 Edge 8GB GDDR6 Graphics Card15,383$269Compare
Orbita GX-5855 Ti 8GB GDDR6 Graphics Card9,384$109Compare
Veltrix GX-8498 SE 32GB GDDR7 Graphics Card42,723$2,359Compare
Orbita GX-6028 Edge 8GB GDDR6 Graphics Card14,265$189Compare
Nexora GX-6008 Max 8GB GDDR7 Graphics Card19,460$479Compare

All Graphics Cards · JSON

Cite this page: Hardware Spec Index, “Zephyra GX-1638 Ultra 16GB GDDR6 Graphics Card”, https://vextor7.com/item/54377538 (accessed 2026-10-20).