LFXP2-5E vs XC7S6
A comparison of the Lattice LatticeXP2 LFXP2-5E and the AMD Spartan-7 XC7S6 using the data from both vendors' selection guides.
Side-by-side specifications
| LFXP2-5E | XC7S6 | |
|---|---|---|
| Vendor / family | Lattice LatticeXP2 | AMD Spartan-7 |
| LUTs as published | 5,000 LUT4 | 3,752 LUT6 |
| LUT type | 4-input look-up table | 6-input look-up table, fracturable into two LUT5 with shared inputs |
| LUT4 equivalent (approx.) | ≈5,000 | ≈6,003 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | — | 6,000 LC |
| DSP | 12 18×18 multipliers | 10 DSP slices |
| Block RAM | 0.2 Mb | 0.2 Mb |
| Large RAM | — | — |
| Max. user I/O | 172 | 100 |
| Transceivers | None | None |
| Hard PCI Express | None | None |
| Hard processor | None | None |
| Process | 90 nm | 28 nm |
| Configuration memory | Internal flash | SRAM |
| Packages | 4 | 3 |
| 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 XC7S6 has about 20% more logic capacity (6K vs 5K LUT4 equivalents).
They use different logic architectures: the LFXP2-5E is built from LUT4 and the XC7S6 from LUT6, so the raw LUT counts (5K vs 3.8K) are not directly comparable.
For arithmetic, the LFXP2-5E has 12 18×18 multipliers against 10 DSP slices on the XC7S6.
The XC7S6 has more on-chip memory (0.2 Mb vs 0.2 Mb).
Configuration memory: internal flash on the LFXP2-5E, sram on the XC7S6.
The LFXP2-5E is designed with Lattice Diamond and the XC7S6 with AMD Vivado; open source: openXC7 (experimental) with Project X-Ray.
Full specifications
See the complete spec sheets with packages and grades: LFXP2-5E (LatticeXP2) and XC7S6 (Spartan-7).