LIFCL-33U vs XC7S25
A comparison of the Lattice CrossLink-NX LIFCL-33U and the AMD Spartan-7 XC7S25 using the data from both vendors' selection guides.
Side-by-side specifications
| LIFCL-33U | XC7S25 | |
|---|---|---|
| Vendor / family | Lattice CrossLink-NX | AMD Spartan-7 |
| Logic (LUT4-equivalent) | 27,500 | 23,360 |
| LUTs as published | 27,500 LUT4 | 14,600 LUT6 |
| Vendor logic figure | 33,000 LC | 23,360 LC |
| DSP | 64 18×18 multipliers | 80 DSP slices |
| Block RAM | 1.1 Mb | 1.6 Mb |
| Large RAM | 2.5 Mb | — |
| Max. user I/O | 52 | 150 |
| Transceivers | None | None |
| Hard PCI Express | None | None |
| Hard processor | None | None |
| Process | 28 nm | 28 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 2 | 3 |
| Design tool | Lattice Radiant | AMD Vivado |
Highlighted values are higher. Logic is compared in LUT4 equivalents; see how FPGA vendors count logic.
Key differences
The LIFCL-33U has about 18% more logic capacity (27.5K vs 23.4K LUT4 equivalents).
They use different logic architectures: the LIFCL-33U is built from LUT4 and the XC7S25 from LUT6, so the raw LUT counts (27.5K vs 14.6K) are not directly comparable.
For arithmetic, the XC7S25 has 80 DSP slices against 64 18×18 multipliers on the LIFCL-33U.
The LIFCL-33U has more on-chip memory (3.6 Mb vs 1.6 Mb).
The LIFCL-33U is designed with Lattice Radiant and the XC7S25 with AMD Vivado.
Full specifications
See the complete spec sheets with packages and grades: LIFCL-33U (CrossLink-NX) and XC7S25 (Spartan-7).