FPGA & adaptive SoC databook · online editionRev. 2026.10

EP4SGX70 vs XC6VLX75T

A comparison of the Altera Stratix IV EP4SGX70 and the AMD Virtex-6 XC6VLX75T using the data from both vendors' selection guides.

Side-by-side specifications

EP4SGX70XC6VLX75T
Vendor / familyAltera Stratix IVAMD Virtex-6
LUTs as published29,040 ALMs46,560 LUT6
LUT typeadaptive 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.)≈58,080≈74,496
CoreScore (SERV cores)——
Vendor logic figure73,000 LE74,496 LC
DSP384 18×18 multipliers288 DSP48E1 slices
Block RAM6.3 Mb5.5 Mb
Large RAM——
Max. user I/O480360
Transceivers16 × XCVR 8.5 Gb/s, 8 × XCVR 6.5 Gb/s12 × GTX 6.6 Gb/s
Hard PCI ExpressGen2Gen2 x8
Hard processorNoneNone
Process40 nm40 nm
Configuration memorySRAMSRAM
Packages22
Design toolAltera Quartus PrimeAMD 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

The XC6VLX75T has about 28% more logic capacity (74.5K vs 58.1K LUT4 equivalents).

They use different logic architectures: the EP4SGX70 is built from ALMs and the XC6VLX75T from LUT6, so the raw LUT counts (29K vs 46.6K) are not directly comparable.

For arithmetic, the EP4SGX70 has 384 18×18 multipliers against 288 DSP48E1 slices on the XC6VLX75T.

The EP4SGX70 has more on-chip memory (6.3 Mb vs 5.5 Mb).

Both have transceivers: 24 at up to 8.5 Gb/s on the EP4SGX70 and 12 at up to 6.6 Gb/s on the XC6VLX75T.

The EP4SGX70 is designed with Altera Quartus Prime and the XC6VLX75T with AMD ISE Design Suite.

Full specifications

See the complete spec sheets with packages and grades: EP4SGX70 (Stratix IV) and XC6VLX75T (Virtex-6).