Intel Arc B580 reference adds PCIe 5.0 x8 and 12 GB GDDR6
The Haze2K1 sheet gives the Arc B580 a PCIe 5.0 x8 interface and 12 GB GDDR6, while core count and price stay open.
| Intel Arc B580 | Intel Arc A580 Reference Design | |
|---|---|---|
| Xe-Cores | TBC | 24 |
| Memory | 12GB GDDR6 | 8GB GDDR6 |
| Memory Bus | 192-bit | 256-bit |
| Memory Speed | 19 Gbps | 16 Gbps |
| Maximum Memory Bandwidth | 456 GB/s | 512 GB/s |
| PCIe Interface | PCIe 5.0×8 | PCIe 4.0×16 |
| Launch Date | Q4 2024? | October 2023 |
| MSRP | TBC | $179 |
The sheet lists a PCIe 5.0 x8 interface. It does not lock in a launch date, a price, or a core count.
The memory figure still reads as a capacity step. A 192-bit bus at 19 Gbps caps bandwidth at 456 GB/s, below the A580's 512 GB/s.
The missing Xe-core count and TBC price keep the buyer's decision open. The cost and yield path for BGM-G21 is open because the core count is TBC.
The sheet does not say whether the B570 or any B300/B500+ model is in the first wave. No benchmark, driver, or board-partner sample is in the document yet.
Lead with the interface change, keep the sheet as a constraint, and leave launch, price, and core count open.
After x.com. We did not report this. The pictures, if any, are theirs.
