XC6SLX100 vs XC7S100
A comparison of the AMD Spartan-6 XC6SLX100 and the AMD Spartan-7 XC7S100 using the data from both vendors' selection guides.
Side-by-side specifications
| XC6SLX100 | XC7S100 | |
|---|---|---|
| Vendor / family | AMD Spartan-6 | AMD Spartan-7 |
| LUTs as published | 63,288 LUT6 | 64,000 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.) | ≈101,261 | ≈102,400 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | 101,261 LC | 102,400 LC |
| DSP | 180 DSP48A1 slices | 160 DSP slices |
| Block RAM | 4.7 Mb | 4.2 Mb |
| Large RAM | — | — |
| Max. user I/O | 480 | 400 |
| Transceivers | None | None |
| Hard PCI Express | None | None |
| Hard processor | None | None |
| Process | 45 nm | 28 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 3 | 2 |
| 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
Both devices offer similar logic capacity: 101K and 102K LUT4 equivalents.
For arithmetic, the XC6SLX100 has 180 DSP48A1 slices against 160 DSP slices on the XC7S100.
The XC6SLX100 has more on-chip memory (4.7 Mb vs 4.2 Mb).
The XC6SLX100 is designed with AMD ISE Design Suite and the XC7S100 with AMD Vivado; open source: openXC7 (experimental) with Project X-Ray.
Full specifications
See the complete spec sheets with packages and grades: XC6SLX100 (Spartan-6) and XC7S100 (Spartan-7).