EP4CGX50 vs XC6SLX75T
A comparison of the Altera Cyclone IV EP4CGX50 and the AMD Spartan-6 XC6SLX75T using the data from both vendors' selection guides.
Side-by-side specifications
| EP4CGX50 | XC6SLX75T | |
|---|---|---|
| Vendor / family | Altera Cyclone IV | AMD Spartan-6 |
| LUTs as published | 50,000 LUT4 | 46,648 LUT6 |
| LUT type | 4-input look-up table | 6-input look-up table, fracturable into two LUT5 with shared inputs |
| LUT4 equivalent (approx.) | ≈50,000 | ≈74,637 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | 50,000 LE | 74,637 LC |
| DSP | 140 18×18 multipliers | 132 DSP48A1 slices |
| Block RAM | 2.4 Mb | 3 Mb |
| Large RAM | — | — |
| Max. user I/O | 310 | 348 |
| Transceivers | 8 × XCVR 3.125 Gb/s | 8 × GTP 3.2 Gb/s |
| Hard PCI Express | Gen2 | Gen1 x1 |
| Hard processor | None | None |
| Process | 60 nm | 45 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 2 | 3 |
| 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 XC6SLX75T has about 49% more logic capacity (74.6K vs 50K LUT4 equivalents).
They use different logic architectures: the EP4CGX50 is built from LUT4 and the XC6SLX75T from LUT6, so the raw LUT counts (50K vs 46.6K) are not directly comparable.
For arithmetic, the EP4CGX50 has 140 18×18 multipliers against 132 DSP48A1 slices on the XC6SLX75T.
The XC6SLX75T has more on-chip memory (3 Mb vs 2.4 Mb).
Both have transceivers: 8 at up to 3.125 Gb/s on the EP4CGX50 and 8 at up to 3.2 Gb/s on the XC6SLX75T.
The EP4CGX50 is designed with Altera Quartus Prime and the XC6SLX75T with AMD ISE Design Suite.
Full specifications
See the complete spec sheets with packages and grades: EP4CGX50 (Cyclone IV) and XC6SLX75T (Spartan-6).