LFMXO5-65T vs XC7S50
A comparison of the Lattice MachXO5-NX LFMXO5-65T and the AMD Spartan-7 XC7S50 using the data from both vendors' selection guides.
Side-by-side specifications
| LFMXO5-65T | XC7S50 | |
|---|---|---|
| Vendor / family | Lattice MachXO5-NX | AMD Spartan-7 |
| Logic (LUT4-equivalent) | 54,167 | 52,160 |
| LUTs as published | 54,167 LUT4 | 32,600 LUT6 |
| Vendor logic figure | 65,000 LC | 52,160 LC |
| DSP | 128 18×18 multipliers | 120 DSP slices |
| Block RAM | 2.2 Mb | 2.6 Mb |
| Large RAM | 1 Mb | — |
| Max. user I/O | 371 | 250 |
| Transceivers | 1 × SERDES | None |
| Hard PCI Express | Gen2 | None |
| Hard processor | None | None |
| Process | 28 nm | 28 nm |
| Configuration memory | Internal flash | SRAM |
| Packages | 3 | 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
Both devices offer similar logic capacity: 54.2K and 52.2K LUT4 equivalents.
They use different logic architectures: the LFMXO5-65T is built from LUT4 and the XC7S50 from LUT6, so the raw LUT counts (54.2K vs 32.6K) are not directly comparable.
For arithmetic, the LFMXO5-65T has 128 18×18 multipliers against 120 DSP slices on the XC7S50.
The LFMXO5-65T has more on-chip memory (3.2 Mb vs 2.6 Mb).
Only the LFMXO5-65T has multi-gigabit transceivers (1).
Configuration memory: internal flash on the LFMXO5-65T, sram on the XC7S50.
The LFMXO5-65T is designed with Lattice Radiant and the XC7S50 with AMD Vivado.
Full specifications
See the complete spec sheets with packages and grades: LFMXO5-65T (MachXO5-NX) and XC7S50 (Spartan-7).