FPGA & adaptive SoC databook · online editionRev. 2026.10

SX 850 vs TX 850

A comparison of the Altera Stratix 10 GX/SX SX 850 and the Altera Stratix 10 TX TX 850 using the data from both vendors' selection guides.

Side-by-side specifications

SX 850TX 850
Vendor / familyAltera Stratix 10 GX/SXAltera Stratix 10 TX
LUTs as published284,960 ALMs284,960 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.)≈569,920≈569,920
CoreScore (SERV cores)——
Vendor logic figure841,000 LE841,000 LE
DSP2,016 variable-precision DSP blocks2,016 variable-precision DSP blocks
Block RAM68 Mb68 Mb
Large RAM——
Max. user I/O688440
Transceivers32 × XCVR 28.3 Gb/s, 16 × XCVR 17.4 Gb/s48 × GXE 57.8 Gb/s, 16 × GXT 28.3 Gb/s, 8 × GX 17.4 Gb/s
Hard PCI ExpressGen3 x16Gen3 x16
Hard processor4× Arm Cortex-A534× Arm Cortex-A53 (optional)
Process14 nm14 nm
Configuration memorySRAMSRAM
Packages12
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

Both devices offer similar logic capacity: 570K and 570K LUT4 equivalents.

Both have transceivers: 48 at up to 28.3 Gb/s on the SX 850 and 72 at up to 57.8 Gb/s on the TX 850.

The SX 850 is designed with Altera Quartus Prime and the TX 850 with Altera Quartus Prime.

Full specifications

See the complete spec sheets with packages and grades: SX 850 (Stratix 10 GX/SX) and TX 850 (Stratix 10 TX).