Hardware Spec Index

Zephyra GX-8646 XT 8GB GDDR6 Graphics Card

Graphics Cards · Zephyra · SKU GX8646-XT · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index17,342 (Graphics Cards scale)
Category rank#31,909
Street price$349
Power190 W (TGP)
Performance per dollar49.69
Released2020

Specifications

BrandZephyra
ModelZephyra GX-8646 XT
Video memory8 GB GDDR6
Memory bus128-bit
Memory speed18 Gbps
Memory bandwidth288 GB/s
Shader units6,528
Boost clock2,021 MHz
Bus interfacePCIe 4.0 x8
Total graphics power (TGP)190 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 size2.5-slot, 232 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-8646 XT 8GB GDDR6 Graphics Card”, https://vextor7.com/item/91672244 (accessed 2026-10-20).