5CGXC4 vs LFE5UM-45
A comparison of the Altera Cyclone V 5CGXC4 and the Lattice ECP5 LFE5UM-45 using the data from both vendors' selection guides.
Side-by-side specifications
| 5CGXC4 | LFE5UM-45 | |
|---|---|---|
| Vendor / family | Altera Cyclone V | Lattice ECP5 |
| Logic (LUT4-equivalent) | 37,736 | 44,000 |
| LUTs as published | 18,868 ALMs | 44,000 LUT4 |
| Vendor logic figure | 50,000 LE | — LC |
| DSP | 70 variable-precision DSP blocks | 72 18×18 multipliers |
| Block RAM | 2.4 Mb | 1.9 Mb |
| Large RAM | — | — |
| Max. user I/O | 336 | 245 |
| Transceivers | 6 × XCVR 3.125 Gb/s | 4 × SERDES 3.2 Gb/s |
| Hard PCI Express | Gen1 | None |
| Hard processor | None | None |
| Process | 28 nm | 40 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 5 | 3 |
| Design tool | Altera Quartus Prime | Lattice Diamond |
Highlighted values are higher. Logic is compared in LUT4 equivalents; see how FPGA vendors count logic.
Key differences
The LFE5UM-45 has about 17% more logic capacity (44K vs 37.7K LUT4 equivalents).
They use different logic architectures: the 5CGXC4 is built from ALMs and the LFE5UM-45 from LUT4, so the raw LUT counts (18.9K vs 44K) are not directly comparable.
For arithmetic, the LFE5UM-45 has 72 18×18 multipliers against 70 variable-precision DSP blocks on the 5CGXC4.
The 5CGXC4 has more on-chip memory (2.4 Mb vs 1.9 Mb).
Both have transceivers: 6 at up to 3.125 Gb/s on the 5CGXC4 and 4 at up to 3.2 Gb/s on the LFE5UM-45.
The 5CGXC4 is designed with Altera Quartus Prime and the LFE5UM-45 with Lattice Diamond.
Full specifications
See the complete spec sheets with packages and grades: 5CGXC4 (Cyclone V) and LFE5UM-45 (ECP5).