FPGA & adaptive SoC databook · online editionRev. 2026.10

5SGXB5 vs GX 400

A comparison of the Altera Stratix V 5SGXB5 and the Altera Stratix 10 GX/SX GX 400 using the data from both vendors' selection guides.

Side-by-side specifications

5SGXB5GX 400
Vendor / familyAltera Stratix VAltera Stratix 10 GX/SX
LUTs as published185,000 ALMs128,160 ALMs
LUT typeadaptive logic module: fracturable 8-input LUT (one 6-input or two independent 4-input functions)adaptive logic module: fracturable 8-input LUT (one 6-input or two independent 4-input functions)
LUT4 equivalent (approx.)≈370,000≈256,320
CoreScore (SERV cores)——
Vendor logic figure490,000 LE378,000 LE
DSP399 variable-precision DSP blocks648 variable-precision DSP blocks
Block RAM41 Mb30 Mb
Large RAM——
Max. user I/O600374
Transceivers66 × GX 14.1 Gb/s16 × XCVR 28.3 Gb/s, 8 × XCVR 17.4 Gb/s
Hard PCI ExpressGen3Gen3 x16
Hard processorNoneNone
Process28 nm14 nm
Configuration memorySRAMSRAM
Packages21
Design toolAltera Quartus PrimeAltera Quartus Prime

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 5SGXB5 has about 44% more logic capacity (370K vs 256K LUT4 equivalents).

For arithmetic, the GX 400 has 648 variable-precision DSP blocks against 399 variable-precision DSP blocks on the 5SGXB5.

The 5SGXB5 has more on-chip memory (41 Mb vs 30 Mb).

Both have transceivers: 66 at up to 14.1 Gb/s on the 5SGXB5 and 24 at up to 28.3 Gb/s on the GX 400.

The 5SGXB5 is designed with Altera Quartus Prime and the GX 400 with Altera Quartus Prime.

Full specifications

See the complete spec sheets with packages and grades: 5SGXB5 (Stratix V) and GX 400 (Stratix 10 GX/SX).