Hardware Spec Index

Zephyra GX-4638 Max 8GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX4638-MAX · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index13,910 (Graphics Cards scale)
Category rank#3,196
Street price$249
Power155 W (TGP)
Performance per dollar55.86
Released2020

Specifications

BrandZephyra
ModelZephyra GX-4638 Max
Video memory8 GB GDDR6
Memory bus128-bit
Memory speed20 Gbps
Memory bandwidth320 GB/s
Shader units4,736
Boost clock2,402 MHz
Bus interfacePCIe 4.0 x8
Total graphics power (TGP)155 W
Power connectors2× 8-pin PCIe
Recommended PSU600 W
Ray tracingHardware-accelerated
UpscalingFSR 1 (spatial)
Display outputs1× HDMI 2.0b, 3× DisplayPort 1.4
Resizable BARSupported
Card size2-slot, 215 mm

Related guides

How Much VRAM Do You Need? 1080p, 1440p, 4K and AIResizable BAR (ReBAR) ExplainedGDDR7 Memory ExplainedChoosing a GPU for 1440p GamingChoosing a GPU for 4K GamingPCIe 5.0 Explained

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Cite this page: Hardware Spec Index, “Zephyra GX-4638 Max 8GB GDDR6 Graphics Card”, https://vextor7.com/item/13627832 (accessed 2026-10-20).