Hardware Spec Index

Zephyra GX-2978 Ultra 12GB GDDR7 Graphics Card

Graphics Cards · Zephyra · SKU GX2978-ULTRA · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index23,342 (Graphics Cards scale)
Category rank#19,523
Street price$739
Power305 W (TGP)
Performance per dollar31.59
Released2025

Specifications

BrandZephyra
ModelZephyra GX-2978 Ultra
Video memory12 GB GDDR7
Memory bus192-bit
Memory speed28 Gbps
Memory bandwidth672 GB/s
Shader units9,600
Boost clock2,411 MHz
Bus interfacePCIe 5.0 x16
Total graphics power (TGP)305 W
Power connectors1× 12V-2x6 (16-pin)
Recommended PSU750 W
Ray tracingHardware-accelerated
UpscalingDLSS 4 (frame generation)
Display outputs1× HDMI 2.1b, 3× DisplayPort 2.1b
Resizable BARSupported
Card size3-slot, 260 mm

Related guides

How Much VRAM Do You Need? 1080p, 1440p, 4K and AIResizable BAR (ReBAR) ExplainedGDDR7 Memory ExplainedPCIe 5.0 ExplainedPCIe 4.0 vs PCIe 5.0Choosing a GPU for 1440p Gaming

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Cite this page: Hardware Spec Index, “Zephyra GX-2978 Ultra 12GB GDDR7 Graphics Card”, https://vextor7.com/item/2911070 (accessed 2026-10-20).