LFE3-35EA vs XC7A25T
A comparison of the Lattice LatticeECP3 LFE3-35EA and the AMD Artix-7 XC7A25T using the data from both vendors' selection guides.
Side-by-side specifications
| LFE3-35EA | XC7A25T | |
|---|---|---|
| Vendor / family | Lattice LatticeECP3 | AMD Artix-7 |
| LUTs as published | 33,000 LUT4 | 14,600 LUT6 |
| LUT type | 4-input look-up table | 6-input look-up table, fracturable into two LUT5 with shared inputs |
| LUT4 equivalent (approx.) | ≈33,000 | ≈23,360 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | — | 23,360 LC |
| DSP | 64 18×18 multipliers | 80 DSP slices |
| Block RAM | 1.3 Mb | 1.6 Mb |
| Large RAM | — | — |
| Max. user I/O | 310 | 150 |
| Transceivers | 4 × SERDES 3.2 Gb/s | 4 × GTP 6.6 Gb/s |
| Hard PCI Express | None | Gen2 |
| Hard processor | None | None |
| Process | 65 nm | 28 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 3 | 2 |
| Design tool | Lattice Diamond | AMD 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 LFE3-35EA has about 41% more logic capacity (33K vs 23.4K LUT4 equivalents).
They use different logic architectures: the LFE3-35EA is built from LUT4 and the XC7A25T from LUT6, so the raw LUT counts (33K vs 14.6K) are not directly comparable.
For arithmetic, the XC7A25T has 80 DSP slices against 64 18×18 multipliers on the LFE3-35EA.
The XC7A25T has more on-chip memory (1.6 Mb vs 1.3 Mb).
Both have transceivers: 4 at up to 3.2 Gb/s on the LFE3-35EA and 4 at up to 6.6 Gb/s on the XC7A25T.
The LFE3-35EA is designed with Lattice Diamond and the XC7A25T with AMD Vivado.
Full specifications
See the complete spec sheets with packages and grades: LFE3-35EA (LatticeECP3) and XC7A25T (Artix-7).