LFXP2-5E vs XC6SLX4
A comparison of the Lattice LatticeXP2 LFXP2-5E and the AMD Spartan-6 XC6SLX4 using the data from both vendors' selection guides.
Side-by-side specifications
| LFXP2-5E | XC6SLX4 | |
|---|---|---|
| Vendor / family | Lattice LatticeXP2 | AMD Spartan-6 |
| LUTs as published | 5,000 LUT4 | 2,400 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 | ≈3,840 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | — | 3,840 LC |
| DSP | 12 18×18 multipliers | 8 DSP48A1 slices |
| Block RAM | 0.2 Mb | 0.2 Mb |
| Large RAM | — | — |
| Max. user I/O | 172 | 132 |
| Transceivers | None | None |
| Hard PCI Express | None | None |
| Hard processor | None | None |
| Process | 90 nm | 45 nm |
| Configuration memory | Internal flash | SRAM |
| Packages | 4 | 3 |
| Design tool | Lattice Diamond | AMD 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
The LFXP2-5E has about 30% more logic capacity (5K vs 3.8K LUT4 equivalents).
They use different logic architectures: the LFXP2-5E is built from LUT4 and the XC6SLX4 from LUT6, so the raw LUT counts (5K vs 2.4K) are not directly comparable.
For arithmetic, the LFXP2-5E has 12 18×18 multipliers against 8 DSP48A1 slices on the XC6SLX4.
The XC6SLX4 has more on-chip memory (0.2 Mb vs 0.2 Mb).
Configuration memory: internal flash on the LFXP2-5E, sram on the XC6SLX4.
The LFXP2-5E is designed with Lattice Diamond and the XC6SLX4 with AMD ISE Design Suite.
Full specifications
See the complete spec sheets with packages and grades: LFXP2-5E (LatticeXP2) and XC6SLX4 (Spartan-6).