Hardware Spec Index

Zephyra GX-2638 Ultra 12GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX2638-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index21,869 (Graphics Cards scale)
Category rank#13,635
Street price$639
Power240 W (TGP)
Performance per dollar34.22
Released2021

Specifications

BrandZephyra
ModelZephyra GX-2638 Ultra
Video memory12 GB GDDR6
Memory bus192-bit
Memory speed20 Gbps
Memory bandwidth480 GB/s
Shader units9,216
Boost clock1,753 MHz
Bus interfacePCIe 4.0 x16
Total graphics power (TGP)240 W
Power connectors2× 8-pin PCIe
Recommended PSU650 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.1, 3× DisplayPort 1.4a
Resizable BARSupported
Card size2.5-slot, 266 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-7700 XT 12GB GDDR6 Graphics Card14,911$239Compare
Nexora GX-7957 Ti 8GB GDDR6 Graphics Card11,765$149Compare
Orbita GX-8392 SE 8GB GDDR6 Graphics Card12,372$199Compare
Orbita GX-7048 XT 12GB GDDR6 Graphics Card17,741$279Compare
Teralux GX-3704 Ti 12GB GDDR6 Graphics Card25,490$639Compare
Nexora GX-2939 Edge 32GB GDDR7 Graphics Card40,301$1,789Compare

All Graphics Cards · JSON

Cite this page: Hardware Spec Index, “Zephyra GX-2638 Ultra 12GB GDDR6 Graphics Card”, https://vextor7.com/item/31362534 (accessed 2026-10-25).