XC6SLX25T vs XC7A15T
A comparison of the AMD Spartan-6 XC6SLX25T and the AMD Artix-7 XC7A15T using the data from both vendors' selection guides.
Side-by-side specifications
| XC6SLX25T | XC7A15T | |
|---|---|---|
| Vendor / family | AMD Spartan-6 | AMD Artix-7 |
| LUTs as published | 15,032 LUT6 | 10,400 LUT6 |
| LUT type | 6-input look-up table, fracturable into two LUT5 with shared inputs | 6-input look-up table, fracturable into two LUT5 with shared inputs |
| LUT4 equivalent (approx.) | ≈24,051 | ≈16,640 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | 24,051 LC | 16,640 LC |
| DSP | 38 DSP48A1 slices | 45 DSP slices |
| Block RAM | 0.9 Mb | 0.9 Mb |
| Large RAM | — | — |
| Max. user I/O | 250 | 250 |
| Transceivers | 2 × GTP 3.2 Gb/s | 4 × GTP 6.6 Gb/s |
| Hard PCI Express | Gen1 x1 | Gen2 |
| Hard processor | None | None |
| Process | 45 nm | 28 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 2 | 5 |
| Design tool | AMD ISE Design Suite | AMD Vivado |
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 XC6SLX25T has about 45% more logic capacity (24.1K vs 16.6K LUT4 equivalents).
For arithmetic, the XC7A15T has 45 DSP slices against 38 DSP48A1 slices on the XC6SLX25T.
Both have transceivers: 2 at up to 3.2 Gb/s on the XC6SLX25T and 4 at up to 6.6 Gb/s on the XC7A15T.
The XC6SLX25T is designed with AMD ISE Design Suite and the XC7A15T with AMD Vivado.
Full specifications
See the complete spec sheets with packages and grades: XC6SLX25T (Spartan-6) and XC7A15T (Artix-7).