FPGA & adaptive SoC databook · online editionRev. 2026.10

AC7t800

AchronixSpeedster7t

The AC7t800 is a Speedster7t FPGA from Achronix, built on a 7 nm process. It provides 326,000 LUT6 look-up tables (730,000 logic cells), 82.9 Mb of block RAM and 864 MLPs. The vendor does not publish its user I/O count, and it has 24 SerDes transceivers at up to 112 Gb/s, with hard PCI Express Gen5 x16 blocks. Designs are built with Achronix Tool Suite.

326,000LUTs (LUT6)
864MLPs
82.9 MbBlock RAM
—Max. user I/O
24Transceivers (112 Gb/s)

Specifications

VendorAchronix
FamilySpeedster7t
SeriesSpeedster
Process7 nm
Configuration memorySRAM
Look-up tables (LUT6)326,000
   Logic block6-input look-up table, fracturable into two LUT5 with shared inputs
   LUT note711K logic elements equivalent; 85 Mb of total memory; inline cryptography
LUT4 equivalent (approx.)≈521,600
Logic cells730,000
Distributed RAM1,987 Kb
Block RAM82.9 Mb (1152 × 73.7 Kb)
DSP (MLP)864
Max. user I/O—
SerDes transceivers24 × 112 Gb/s
PCI Express Gen5 x16
Hard memory controllerDDR5 ×64 with ECC; 6 GDDR6 channels with ECC
Analog / monitorNone
Design toolAchronix Tool Suite

Alternatives to the AC7t800

Closest matches in other families and vendors by logic, DSP, memory, I/O and transceivers. Check pin compatibility and tools before migrating.

DeviceLUTsVendor logicDSPBlock RAMMax I/OTransceiversPCIeCoreScore
XCVU31PAMD Virtex UltraScale+ HBM440,000 LUT6962K SLC2,88023.6 Mb20832 GTY 32.75 Gb/sGen3—
XCVU33PAMD Virtex UltraScale+ HBM440,000 LUT6962K SLC2,88023.6 Mb20832 GTY 32.75 Gb/sGen3—
XCZU42DRAMD Zynq UltraScale+ RFSoC224,000 LUT6489K SLC1,87222.8 Mb1528 GTY 28.21 Gb/s——
XCZU65DRAMD Zynq UltraScale+ RFSoC224,000 LUT6489K SLC1,87222.8 Mb1548 GTY 28.21 Gb/s——
XCZU67DRAMD Zynq UltraScale+ RFSoC224,000 LUT6489K SLC1,87222.8 Mb1548 GTY 28.21 Gb/s——
XCZU63DRAMD Zynq UltraScale+ RFSoC180,000 LUT6393K SLC1,20017.6 Mb1544 GTY 28.21 Gb/s——

Compare side by side: AC7t800 vs XCVU31P, AC7t800 vs XCVU33P, AC7t800 vs XCZU42DR.

Compare the AC7t800 with up to three other FPGAs.

AC7t800 quick facts

How many LUTs does the AC7t800 have?

The AC7t800 has 326,000 LUT6 look-up tables (730,000 logic cells as published by Achronix). Logic block: 6-input look-up table, fracturable into two LUT5 with shared inputs.

How many DSP blocks does the AC7t800 have?

The AC7t800 has 864 MLPs and 82.9 Mb of block RAM.

Does the AC7t800 have transceivers?

Yes, 24 SerDes transceivers at up to 112 Gb/s.

What are the alternatives to the AC7t800?

Devices of similar size in other families include XCVU31P (AMD Virtex UltraScale+ HBM), XCVU33P (AMD Virtex UltraScale+ HBM), XCZU42DR (AMD Zynq UltraScale+ RFSoC).

Which software is used to design with the AC7t800?

Designs for the AC7t800 are built with Achronix Tool Suite.

Other Speedster7t devices

DeviceLUTsVendor logicDSPBlock RAMMax I/OTransceiversPCIeCoreScore
AC7t800326,000 LUT6730K LC86482.9 Mb—24 SerDes 112 Gb/sGen5—
AC7t1500692,000 LUT61546K LC2,560184.2 Mb—32 SerDes 112 Gb/sGen5—

Source: Speedster7t FPGAs Product Brief, PB033 v2.1. Data is extracted automatically from the vendor's selection guide; verify critical values in the device data sheet.