LFMXO5-20TD vs XC7A15T
A comparison of the Lattice MachXO5-NX LFMXO5-20TD and the AMD Artix-7 XC7A15T using the data from both vendors' selection guides.
Side-by-side specifications
| LFMXO5-20TD | XC7A15T | |
|---|---|---|
| Vendor / family | Lattice MachXO5-NX | AMD Artix-7 |
| Logic (LUT4-equivalent) | 16,667 | 16,640 |
| LUTs as published | 16,667 LUT4 | 10,400 LUT6 |
| Vendor logic figure | 20,000 LC | 16,640 LC |
| DSP | 48 18×18 multipliers | 45 DSP slices |
| Block RAM | 0.7 Mb | 0.9 Mb |
| Large RAM | 0.5 Mb | — |
| Max. user I/O | 368 | 250 |
| Transceivers | 1 × SERDES | 4 × GTP 6.6 Gb/s |
| Hard PCI Express | Gen2 | Gen2 |
| Hard processor | None | None |
| Process | 28 nm | 28 nm |
| Configuration memory | Internal flash | SRAM |
| Packages | 3 | 5 |
| 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: 16.7K and 16.6K LUT4 equivalents.
They use different logic architectures: the LFMXO5-20TD is built from LUT4 and the XC7A15T from LUT6, so the raw LUT counts (16.7K vs 10.4K) are not directly comparable.
For arithmetic, the LFMXO5-20TD has 48 18×18 multipliers against 45 DSP slices on the XC7A15T.
The LFMXO5-20TD has more on-chip memory (1.2 Mb vs 0.9 Mb).
Both have transceivers: 1 at up to 0 Gb/s on the LFMXO5-20TD and 4 at up to 6.6 Gb/s on the XC7A15T.
Configuration memory: internal flash on the LFMXO5-20TD, sram on the XC7A15T.
The LFMXO5-20TD is designed with Lattice Radiant and the XC7A15T with AMD Vivado.
Full specifications
See the complete spec sheets with packages and grades: LFMXO5-20TD (MachXO5-NX) and XC7A15T (Artix-7).