LFMXO5-55TDQ vs XC7A35T
A comparison of the Lattice MachXO5-NX LFMXO5-55TDQ and the AMD Artix-7 XC7A35T using the data from both vendors' selection guides.
Side-by-side specifications
| LFMXO5-55TDQ | XC7A35T | |
|---|---|---|
| Vendor / family | Lattice MachXO5-NX | AMD Artix-7 |
| Logic (LUT4-equivalent) | 31,667 | 33,280 |
| LUTs as published | 31,667 LUT4 | 20,800 LUT6 |
| Vendor logic figure | 38,000 LC | 33,280 LC |
| DSP | 93 18×18 multipliers | 90 DSP slices |
| Block RAM | 0.3 Mb | 1.8 Mb |
| Large RAM | 2.5 Mb | — |
| Max. user I/O | 297 | 250 |
| Transceivers | 2 × 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 | 1 | 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: 31.7K and 33.3K LUT4 equivalents.
They use different logic architectures: the LFMXO5-55TDQ is built from LUT4 and the XC7A35T from LUT6, so the raw LUT counts (31.7K vs 20.8K) are not directly comparable.
For arithmetic, the LFMXO5-55TDQ has 93 18×18 multipliers against 90 DSP slices on the XC7A35T.
The LFMXO5-55TDQ has more on-chip memory (2.8 Mb vs 1.8 Mb).
Both have transceivers: 2 at up to 0 Gb/s on the LFMXO5-55TDQ and 4 at up to 6.6 Gb/s on the XC7A35T.
Configuration memory: internal flash on the LFMXO5-55TDQ, sram on the XC7A35T.
The LFMXO5-55TDQ is designed with Lattice Radiant and the XC7A35T with AMD Vivado.
Full specifications
See the complete spec sheets with packages and grades: LFMXO5-55TDQ (MachXO5-NX) and XC7A35T (Artix-7).