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White graphics card with dual fans, aluminium backplate and ARGB logo lighting

ONIX

ONIX 8346-00278 LUMI Arc B580 12GB graphics card

SKU CH-PCDD-D3127 MPN 8346-00278

White Arc B580 GPU with 12GB GDDR6, 20 Xe-cores at 2740 MHz, 192-bit bus, PCIe 4.0 x8, HDMI 2.1, three DisplayPort 2.1 outputs, and 16.8 million-color ARGB lighting

  • Graphics processorArc B580
  • Memory capacity12 GB
  • Interface typePCI Express 4.0 x8
  • Highest resolution7680 × 4320
  • Type of memoryGDDR6
  • Core frequency2740 MHz
  • 12 GB GDDR6 memory on a 192-bit bus for high-resolution textures
  • 20 Xe-cores at 2740 MHz core clock deliver strong compute performance
  • PCI Express 4.0 x8 interface provides modern platform bandwidth
  • HDMI 2.1 plus three DisplayPort 2.1 outputs drive up to four displays
  • White aluminium backplate with 16.8 million colour ARGB lighting enhances build aesthetics

Arc B580 12 GB for white-themed builds

The ONIX LUMI Arc B580 12GB graphics card targets enthusiasts building white-themed systems. Its Intel Arc B580 GPU delivers 20 Xe-cores clocked at 2740 MHz alongside 12GB of GDDR6 memory on a 192-Bit interface. The PCI Express 4.0 x8 connection suits modern platforms and the card supports DirectX 12 Ultimate plus OpenGL 4.6 for current APIs.

ARGB lighting and aluminium backplate

A programmable ARGB logo on the shroud offers 16.8 million colours with software control for effects, brightness and synchronisation. The aluminium backplate adds structural rigidity and a clean white finish that matches the shroud. Dual ball-bearing fans keep acoustic output below 30 dBA while maintaining component temperatures.

Four modern display outputs

One HDMI 2.1 port and three DisplayPort 2.1 connectors drive up to four monitors simultaneously. The white colour scheme extends across the shroud and backplate for visual consistency in light-coloured cases. Standard mounting brackets fit typical ATX chassis without special clearances.

How it compares

Measured against everything we stock in Desktop GPUs & Video Cards, at today’s prices. Recalculated every night.

Price $255.99
Cheaper than about 63% of the 4,285 comparable items (median $354.99).
Memory capacity 12 GB
Higher than about 60% of the 3,563 comparable items (median 8 GB).
Recommended power supply 600 W
Lower than about 65% of the 2,103 comparable items (median 650 W).

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Specifications

Product
Brand nameONIX
Product lineLUMI
Model name8346-00278
Part number8346-00278
Product colorWhite
Processor
TDP rating203 W
Xe-cores20
Memory
Type of memoryGDDR6
Display
Highest resolution7680 × 4320
Graphics
Graphics processorArc B580
Memory capacity12 GB
Core frequency2740 MHz
Chipset makerIntel
Graphics seriesIntel Arc B-Series
Effective memory speed19000 MHz
Memory bus width192-Bit
DirectX support12 Ultimate
OpenGL support4.6
Supported displays4
Ports & slots
Interface typePCI Express 4.0 x8
HDMI ports1 x HDMI 2.1
DisplayPort connectors3 x DisplayPort 2.1
Power
Recommended power supply600 W
Power input connector8-Pin
Size & build
Form factorATX
Max graphics card length260 mm
Card size260 × 130 × 52 mm
Slots occupied2.2 Slots
Shipping weight1.16 kg
Package size371 × 196 × 80 mm
More details
Cooling solutionDouble Fans

Questions about this item

Will the dual ball-bearing fans need replacement after long-term use?

The dual ball-bearing fans are designed for reliable, long-lasting cooling and a noise level kept below 30 dBA, reducing wear compared to sleeve-bearing alternatives.

What limits performance first during sustained workloads?

The PCI Express 4.0 x8 interface provides half the lane bandwidth of a full x16 link, which can become the bottleneck before the 12GB GDDR6 memory or 20 Xe-cores saturate.

How much heat and noise does the card produce when running all day?

Noise stays below 30 dBA thanks to the dual ball-bearing fan design, while the aluminum backplate helps dissipate heat from the 2740 MHz core clock and 19000 MHz memory.

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