FPGA & adaptive SoC databook · online editionRev. 2026.10

XCAU20P vs XCKU025

A comparison of the AMD Artix UltraScale+ XCAU20P and the AMD Kintex UltraScale XCKU025 using the data from both vendors' selection guides.

Side-by-side specifications

XCAU20PXCKU025
Vendor / familyAMD Artix UltraScale+AMD Kintex UltraScale
LUTs as published109,000 LUT6145,440 LUT6
LUT type6-input look-up table, fracturable into two LUT5 with shared inputs6-input look-up table, fracturable into two LUT5 with shared inputs
LUT4 equivalent (approx.)≈174,400≈232,704
CoreScore (SERV cores)——
Vendor logic figure238,000 SLC318,000 SLC
DSP900 DSP slices1,152 DSP slices
Block RAM7 Mb12.7 Mb
Large RAM——
Max. user I/O228312
Transceivers12 × GTY 32.75 Gb/s12 × GTH/GTY 16.3 Gb/s
Hard PCI ExpressGen3 x8Gen3
Hard processorNoneNone
Process16 nm20 nm
Configuration memorySRAMSRAM
Packages21
Design toolAMD VivadoAMD Vivado

Highlighted values are higher. LUT counts are shown as published; the LUT4 equivalent is an approximation to compare different LUT types, see how FPGA vendors count logic. Add up to two more devices to this comparison.

Key differences

The XCKU025 has about 33% more logic capacity (233K vs 174K LUT4 equivalents).

For arithmetic, the XCKU025 has 1,152 DSP slices against 900 DSP slices on the XCAU20P.

The XCKU025 has more on-chip memory (12.7 Mb vs 7 Mb).

Both have transceivers: 12 at up to 32.75 Gb/s on the XCAU20P and 12 at up to 16.3 Gb/s on the XCKU025.

The XCAU20P is designed with AMD Vivado and the XCKU025 with AMD Vivado.

Full specifications

See the complete spec sheets with packages and grades: XCAU20P (Artix UltraScale+) and XCKU025 (Kintex UltraScale).