LFMXO5-15D vs XC6SLX9
A comparison of the Lattice MachXO5-NX LFMXO5-15D and the AMD Spartan-6 XC6SLX9 using the data from both vendors' selection guides.
Side-by-side specifications
| LFMXO5-15D | XC6SLX9 | |
|---|---|---|
| Vendor / family | Lattice MachXO5-NX | AMD Spartan-6 |
| LUTs as published | 11,667 LUT4 | 5,720 LUT6 |
| LUT type | 4-input look-up table | 6-input look-up table, fracturable into two LUT5 with shared inputs |
| LUT4 equivalent (approx.) | ≈11,667 | ≈9,152 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | 14,000 LC | 9,152 LC |
| DSP | 16 18×18 multipliers | 16 DSP48A1 slices |
| Block RAM | 0.3 Mb | 0.6 Mb |
| Large RAM | 0.5 Mb | — |
| Max. user I/O | 305 | 200 |
| Transceivers | None | None |
| Hard PCI Express | None | None |
| Hard processor | None | None |
| Process | 28 nm | 45 nm |
| Configuration memory | Internal flash | SRAM |
| Packages | 2 | 5 |
| Design tool | Lattice Radiant | 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 LFMXO5-15D has about 27% more logic capacity (11.7K vs 9.2K LUT4 equivalents).
They use different logic architectures: the LFMXO5-15D is built from LUT4 and the XC6SLX9 from LUT6, so the raw LUT counts (11.7K vs 5.7K) are not directly comparable.
The LFMXO5-15D has more on-chip memory (0.8 Mb vs 0.6 Mb).
Configuration memory: internal flash on the LFMXO5-15D, sram on the XC6SLX9.
The LFMXO5-15D is designed with Lattice Radiant and the XC6SLX9 with AMD ISE Design Suite.
Full specifications
See the complete spec sheets with packages and grades: LFMXO5-15D (MachXO5-NX) and XC6SLX9 (Spartan-6).