FPGA & adaptive SoC databook · online editionRev. 2026.10

10AX066 vs XC6VSX475T

A comparison of the Altera Arria 10 10AX066 and the AMD Virtex-6 XC6VSX475T using the data from both vendors' selection guides.

Side-by-side specifications

10AX066XC6VSX475T
Vendor / familyAltera Arria 10AMD Virtex-6
LUTs as published250,540 ALMs297,600 LUT6
LUT typeadaptive logic module: fracturable 8-input LUT (one 6-input or two independent 4-input functions)6-input look-up table, fracturable into two LUT5 with shared inputs
LUT4 equivalent (approx.)≈501,080≈476,160
CoreScore (SERV cores)——
Vendor logic figure865,000 LE476,160 LC
DSP1,687 variable-precision DSP blocks2,016 DSP48E1 slices
Block RAM41.7 Mb37.4 Mb
Large RAM——
Max. user I/O696840
Transceivers48 × XCVR 17.4 Gb/s36 × GTX 6.6 Gb/s
Hard PCI ExpressGen3 x8Gen2 x8
Hard processorNoneNone
Process20 nm40 nm
Configuration memorySRAMSRAM
Packages22
Design toolAltera Quartus PrimeAMD ISE Design Suite

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

Both devices offer similar logic capacity: 501K and 476K LUT4 equivalents.

They use different logic architectures: the 10AX066 is built from ALMs and the XC6VSX475T from LUT6, so the raw LUT counts (251K vs 298K) are not directly comparable.

For arithmetic, the XC6VSX475T has 2,016 DSP48E1 slices against 1,687 variable-precision DSP blocks on the 10AX066.

The 10AX066 has more on-chip memory (41.7 Mb vs 37.4 Mb).

Both have transceivers: 48 at up to 17.4 Gb/s on the 10AX066 and 36 at up to 6.6 Gb/s on the XC6VSX475T.

The 10AX066 is designed with Altera Quartus Prime and the XC6VSX475T with AMD ISE Design Suite.

Full specifications

See the complete spec sheets with packages and grades: 10AX066 (Arria 10) and XC6VSX475T (Virtex-6).