FPGA & adaptive SoC databook · online editionRev. 2026.10

5SEE9 vs LAV-AT-E50

A comparison of the Altera Stratix V 5SEE9 and the Lattice Avant-E LAV-AT-E50 using the data from both vendors' selection guides.

Side-by-side specifications

5SEE9LAV-AT-E50
Vendor / familyAltera Stratix VLattice Avant-E
LUTs as published317,000 ALMs255,000 LUT4
LUT typeadaptive logic module: fracturable 8-input LUT (one 6-input or two independent 4-input functions)4-input look-up table
LUT4 equivalent (approx.)≈634,000≈255,000
CoreScore (SERV cores)——
Vendor logic figure840,000 LE409,000 LC
DSP352 variable-precision DSP blocks1,120 18×18 multipliers
Block RAM51.6 Mb22.7 Mb
Large RAM——
Max. user I/O840553
TransceiversNoneNone
Hard PCI ExpressNoneNone
Hard processorNoneNone
Process28 nm16 nm
Configuration memorySRAMSRAM
Packages22
Design toolAltera Quartus PrimeLattice Radiant

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 5SEE9 has about 149% more logic capacity (634K vs 255K LUT4 equivalents).

They use different logic architectures: the 5SEE9 is built from ALMs and the LAV-AT-E50 from LUT4, so the raw LUT counts (317K vs 255K) are not directly comparable.

For arithmetic, the LAV-AT-E50 has 1,120 18×18 multipliers against 352 variable-precision DSP blocks on the 5SEE9.

The 5SEE9 has more on-chip memory (51.6 Mb vs 22.7 Mb).

The 5SEE9 is designed with Altera Quartus Prime and the LAV-AT-E50 with Lattice Radiant.

Full specifications

See the complete spec sheets with packages and grades: 5SEE9 (Stratix V) and LAV-AT-E50 (Avant-E).