GX 400 vs XC6VHX255T
A comparison of the Altera Stratix 10 GX/SX GX 400 and the AMD Virtex-6 XC6VHX255T using the data from both vendors' selection guides.
Side-by-side specifications
| GX 400 | XC6VHX255T | |
|---|---|---|
| Vendor / family | Altera Stratix 10 GX/SX | AMD Virtex-6 |
| LUTs as published | 128,160 ALMs | 158,400 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.) | ≈256,320 | ≈253,440 |
| CoreScore (SERV cores) | — | — |
| Vendor logic figure | 378,000 LE | 253,440 LC |
| DSP | 648 variable-precision DSP blocks | 576 DSP48E1 slices |
| Block RAM | 30 Mb | 18.1 Mb |
| Large RAM | — | — |
| Max. user I/O | 374 | 480 |
| Transceivers | 16 × XCVR 28.3 Gb/s, 8 × XCVR 17.4 Gb/s | 24 × GTX 6.6 Gb/s, 24 × GTH 11.18 Gb/s |
| Hard PCI Express | Gen3 x16 | Gen2 x8 |
| Hard processor | None | None |
| Process | 14 nm | 40 nm |
| Configuration memory | SRAM | SRAM |
| Packages | 1 | 2 |
| 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
Both devices offer similar logic capacity: 256K and 253K LUT4 equivalents.
They use different logic architectures: the GX 400 is built from ALMs and the XC6VHX255T from LUT6, so the raw LUT counts (128K vs 158K) are not directly comparable.
For arithmetic, the GX 400 has 648 variable-precision DSP blocks against 576 DSP48E1 slices on the XC6VHX255T.
The GX 400 has more on-chip memory (30 Mb vs 18.1 Mb).
Both have transceivers: 24 at up to 28.3 Gb/s on the GX 400 and 48 at up to 11.18 Gb/s on the XC6VHX255T.
The GX 400 is designed with Altera Quartus Prime and the XC6VHX255T with AMD ISE Design Suite.
Full specifications
See the complete spec sheets with packages and grades: GX 400 (Stratix 10 GX/SX) and XC6VHX255T (Virtex-6).