5CEA4 vs XC6SLX45
A comparison of the Altera Cyclone V 5CEA4 and the AMD Spartan-6 XC6SLX45 using the data from both vendors' selection guides.
Side-by-side specifications
| 5CEA4 | XC6SLX45 | |
|---|---|---|
| Vendor / family | Altera Cyclone V | AMD Spartan-6 |
| LUTs as published | 18,480 ALMs | 27,288 LUT6 |
| LUT type | adaptive logic module: fracturable 8-input LUT (one 6-input or two independent 4-input functions) | 6-input look-up table, fracturable into two LUT5 with shared inputs |
| LUT4 equivalent (approx.) | ≈36,960 | ≈43,661 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | 49,000 LE | 43,661 LC |
| DSP | 66 variable-precision DSP blocks | 58 DSP48A1 slices |
| Block RAM | 3 Mb | 2 Mb |
| Large RAM | — | — |
| Max. user I/O | 224 | 358 |
| Transceivers | None | None |
| Hard PCI Express | None | None |
| Hard processor | None | None |
| Process | 28 nm | 45 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 5 | 4 |
| Design tool | Altera Quartus Prime | AMD ISE Design Suite |
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 XC6SLX45 has about 18% more logic capacity (43.7K vs 37K LUT4 equivalents).
They use different logic architectures: the 5CEA4 is built from ALMs and the XC6SLX45 from LUT6, so the raw LUT counts (18.5K vs 27.3K) are not directly comparable.
For arithmetic, the 5CEA4 has 66 variable-precision DSP blocks against 58 DSP48A1 slices on the XC6SLX45.
The 5CEA4 has more on-chip memory (3 Mb vs 2 Mb).
The 5CEA4 is designed with Altera Quartus Prime; open source: Yosys + nextpnr-mistral (experimental) with Mistral and the XC6SLX45 with AMD ISE Design Suite.
Full specifications
See the complete spec sheets with packages and grades: 5CEA4 (Cyclone V) and XC6SLX45 (Spartan-6).