Vendor spec-table host-interface (PCI Express generation) readings: NVIDIA GeForce RTX 30/40/50 product spec tables, RTX 6000 ADA + RTX PRO 6000 datasheets, Intel Arc B580 ARK + Arc Pro B60 datasheet

RETRIEVED AND TRANSCRIBED VERBATIM 2026-10-04, one page per cited part. This source exists to fill accelerator records whose interconnect field was EMPTY or carried an unresolvable 'pcie' value, by recording the HOST INTERFACE generation each vendor publishes on its own spec table. Every reading below is a spec-table cell, not a third-party spec-database value. NVIDIA GeForce product pages, from the 'Technology Support' row of each page's spec table, verbatim 'PCI Express Gen N': - GeForce RTX 3090 family page (https://www.nvidia.com/en-us/geforce/graphics-cards/30-series/rtx-3090-3090ti/, Ampere): 'PCI Express Gen 4', with the row's two 'Yes' columns confirming BOTH the RTX 3090 and the RTX 3090 Ti. Applies to nvidia-rtx-3090 and nvidia-rtx-3090-ti. - GeForce RTX 4090 page (https://www.nvidia.com/en-us/geforce/graphics-cards/40-series/rtx-4090/, Ada): 'PCI Express Gen 4'. Applies to nvidia-rtx-4090. - GeForce RTX 4080 family page (https://www.nvidia.com/en-us/geforce/graphics-cards/40-series/rtx-4080/, Ada): 'PCI Express Gen 4'. Applies to nvidia-rtx-4080. - GeForce RTX 5090 page (https://www.nvidia.com/en-us/geforce/graphics-cards/50-series/rtx-5090/, Blackwell): 'PCI Express Gen 5'. Applies to nvidia-rtx-5090. - GeForce RTX 5080 page (https://www.nvidia.com/en-us/geforce/graphics-cards/50-series/rtx-5080/, Blackwell): 'PCI Express Gen 5'. Applies to nvidia-rtx-5080. - GeForce RTX 5070 family page (https://www.nvidia.com/en-us/geforce/graphics-cards/50-series/rtx-5070-family/, Blackwell): 'PCI Express Gen 5', with two 'Yes' columns covering the RTX 5070, 5070 Ti and 5070 SUPER. Applies to nvidia-rtx-5070-ti and local-nvidia-rtx-5070. NVIDIA workstation datasheets, from each sheet's spec table row labelled 'System interface': - RTX 6000 ADA Generation, doc 2504660 (https://www.nvidia.com/content/dam/en-zz/Solutions/design-visualization/rtx-6000/proviz-print-rtx6000-datasheet-web-2504660.pdf): 'System interface PCIe 4.0 x16', and the Key Features line 'PCIe Gen 4'. Applies to nvidia-rtx-6000-ada. - RTX PRO 6000 Blackwell Workstation Edition, doc 3519208 (https://www.nvidia.com/content/dam/en-zz/Solutions/design-visualization/quadro-product-literature/workstation-datasheet-blackwell-rtx-pro6000-x-nvidia-us-3519208-web.pdf): 'System interface PCIe 5.0 x16', plus a prose sentence 'PCIe Gen 5: Support for PCIe Gen 5 provides double the bandwidth of PCIe Gen 4'. Applies to nvidia-rtx-pro-6000-blackwell. Intel, from each document's spec table: - Arc B580, Intel ARK specifications page (https://www.intel.com/content/www/us/en/products/sku/241598/intel-arc-b580-graphics/specifications.html): row 'PCI Express Configurations' with value 'PCI Express 4.0 x8'. NOTE THE LANE COUNT: x8, not x16, and Gen 4, not Gen 5 - both facts matter and are recorded per part rather than per family. Applies to intel-arc-b580. - Arc Pro B60 datasheet (https://www.thailand.intel.com/content/dam/www/central-libraries/us/en/documents/2026-03/datasheet-b60-gpu.pdf): 'PCIe Support Gen 5.0 x16 (x8 Electrical), with 4.0 Backwards Compatibility'. The ELECTRICAL x8 on a Gen 5 x16 connector is the anomaly already recorded on the intel-arc-pro-b60 record and is why host bandwidth there is half what the connector implies. Applies to intel-arc-pro-b60. WHAT THIS SOURCE DELIBERATELY DOES NOT COVER. It records HOST interface only. It does not assert any scale-up fabric: every GeForce part listed here has NO NVLink (the sole exception in this repo is the RTX 3090 family, whose NVLink bridge is recorded on nvidia-rtx-3090-ti's own notes, not here). Do not read 'PCI Express Gen 5' on a GeForce record as evidence of any multi-GPU fabric. It also does not cover the sOC parts (Apple M-series, Horizon Journey 6P), which have no PCIe interface at all and are correctly left with an empty interconnect list.