LAV-AT-X70 vs XC7K420T
A comparison of the Lattice Avant-X LAV-AT-X70 and the AMD Kintex-7 XC7K420T using the data from both vendors' selection guides.
Side-by-side specifications
| LAV-AT-X70 | XC7K420T | |
|---|---|---|
| Vendor / family | Lattice Avant-X | AMD Kintex-7 |
| Logic (LUT4-equivalent) | 397,000 | 416,960 |
| LUTs as published | 397,000 LUT4 | 260,600 LUT6 |
| Vendor logic figure | 637,000 LC | 416,960 LC |
| DSP | 1,800 18×18 multipliers | 1,680 DSP slices |
| Block RAM | 35.6 Mb | 29.4 Mb |
| Large RAM | — | — |
| Max. user I/O | 554 | 400 |
| Transceivers | 28 × SERDES 25 Gb/s | 32 × GTX 12.5 Gb/s |
| Hard PCI Express | None | Gen2 |
| Hard processor | None | None |
| Process | 16 nm | 28 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 2 | 2 |
| 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: 397K and 417K LUT4 equivalents.
They use different logic architectures: the LAV-AT-X70 is built from LUT4 and the XC7K420T from LUT6, so the raw LUT counts (397K vs 261K) are not directly comparable.
For arithmetic, the LAV-AT-X70 has 1,800 18×18 multipliers against 1,680 DSP slices on the XC7K420T.
The LAV-AT-X70 has more on-chip memory (35.6 Mb vs 29.4 Mb).
Both have transceivers: 28 at up to 25 Gb/s on the LAV-AT-X70 and 32 at up to 12.5 Gb/s on the XC7K420T.
The LAV-AT-X70 is designed with Lattice Radiant and the XC7K420T with AMD Vivado.
Full specifications
See the complete spec sheets with packages and grades: LAV-AT-X70 (Avant-X) and XC7K420T (Kintex-7).