The Card

The new Arc B-Series uses a mostly-black color theme. A cutout on the right side, combined with a shorter PCB, maximizes airflow through the cooling stack.


With a length of 27.5 cm, this dual-slot, dual-fan design should fit into all cases easily.


Intel has chosen the battle-tested 8-pin power connector for their card, which is rated for up to 150 W of power delivery. Combined with the slot this enables a 225 W power delivery capability. Intel has given the B580 a 190 W TDP. The Intel Arc logo looks like it is RGB-illuminated.


Even though the PCI-Express connector is x16 physically and has all the gold contact fingers, it is actually PCIe 4.0 x8—same as GeForce RTX 4060, for example. We asked, and Intel confirmed that the card is not PCI-Express 5.0, but it will work in a PCIe 5.0 slot of course, at Gen 4 speed. Intel also confirmed that the interface is x8 wide.


The Arc B580 supports three DisplayPort 2.1 outputs and a single HDMI 2.1. Note how the middle DisplayPort has an outline. This indicates that it is the "primary" port. We asked Intel, and they told us that this port supports up to UHBR 13.5 (54 Gbps), the other outputs support UHBR 10 (40 Gbps).


Near the back of the card you have four screw holes to mount the card with a support bracket, which is mostly used in workstation and server setups.

Compared to Arc A770

Compared to the previous-generation flagship, the Intel Arc A770, the B580 uses the exact same dimensions.


We can definitely see some refinements in the design language, but overall it's a fairly similar look.


Only the PCIe shield with the outputs has been modernized a bit, it's now shiny and has round cutouts.


Here's an illustration of the cooler design.