XC7VX330T-2FFG1157I vs XC7VX415T-2FFG1157I: Virtex-7 Resource Comparison

ElecSuppliers Part Number ComparisonAug 17, 2026

The XC7VX330T-2FFG1157I and XC7VX415T-2FFG1157I are Virtex-7 FPGAs designed for high-density programmable logic applications.

Both devices use the -2 speed grade, the FFG1157 package, and the industrial temperature grade. Their architectures are closely related, but they offer different levels of FPGA capacity.

For engineers maintaining a Virtex-7 design, this comparison is useful when deciding whether the smaller XC7VX330T is sufficient or whether the additional resources of XC7VX415T are needed.

XC7VX330T-2FFG1157I Overview

The XC7VX330T is a high-density Virtex-7 FPGA with approximately 326,080 logic cells.

It provides a substantial programmable fabric for applications involving digital signal processing, communications, industrial control, networking, video processing, and high-speed data acquisition.

The device is also available in the FFG1157 package, making it relevant for designs where board-level space and I/O requirements are already established.

XC7VX415T-2FFG1157I Overview

The XC7VX415T offers a larger programmable logic fabric than the XC7VX330T.

It provides approximately 416,960 logic cells, giving engineers additional capacity for larger RTL implementations and more demanding hardware acceleration.

The larger device can be useful when a product revision adds new algorithms, interfaces, processing channels, or memory-intensive functions.

XC7VX330T vs XC7VX415T Specifications

The XC7VX415T has approximately 28% more logic-cell capacity than the XC7VX330T.

For some designs, that difference can provide enough additional margin to avoid moving to a different FPGA package or family.

What the Extra Capacity Means

An FPGA design does not use logic cells in isolation.

A more complex application can consume additional resources as features are added.

For example, a communications system may need extra hardware for packet processing, error correction, buffering, encryption, and protocol handling.

A vision system may require additional logic for image filtering, scaling, feature extraction, and multiple video streams.

In these situations, the XC7VX415T provides more room than the XC7VX330T.

XC7VX330T vs XC7VX415T for DSP Applications

DSP-heavy designs should be evaluated using more than the logic-cell specification.

Digital filters, FFTs, modulation, demodulation, image processing, and other mathematical functions can consume a significant number of DSP resources.

When comparing these two devices, engineers should review the DSP utilization of the actual design.

If the XC7VX330T is close to its DSP or BRAM limits, moving to XC7VX415T may provide more useful headroom than simply looking at overall LUT utilization.

FFG1157 Package Compatibility

Both devices use the FFG1157 package.

This can simplify the initial evaluation of a migration because the package class remains the same.

However, engineers should not assume that the two devices are automatically pin-compatible.

The exact pin assignment must be checked, including power connections, I/O banks, clock inputs, configuration pins, and high-speed serial interfaces.

The PCB design should be reviewed before the target FPGA is approved for production.

Is XC7VX415T an Upgrade for XC7VX330T?

The XC7VX415T-2FFG1157I can be considered an upgrade candidate for an XC7VX330T design when additional FPGA resources are required.

The additional logic capacity can be useful for:

Larger RTL designs

Additional processing channels

Hardware accelerators

More complex interfaces

Future product features

Higher internal parallelism

The migration should still be validated through FPGA implementation and hardware testing.

Can XC7VX330T Replace XC7VX415T?

The smaller XC7VX330T may be considered only when the existing XC7VX415T design has enough unused resources.

The correct way to evaluate this is to review the implementation report.

Important limits include:

LUT utilization

Register utilization

Block RAM

DSP slices

I/O

Clock resources

Transceiver resources

If any critical resource exceeds the XC7VX330T capability, the design cannot be migrated without modification.

XC7VX415T Replacement Guide

When searching for an XC7VX415T replacement, engineers should define what kind of replacement is actually required.

A legacy product may need a pin-compatible FPGA, while another project may only require an FPGA with similar processing capacity.

These are very different requirements.

For a hardware replacement, check the package and pinout first.

For a functional replacement, compare FPGA architecture, logic capacity, DSP, RAM, transceivers, clocking, speed grade, power, and development-tool support.

For a next-generation redesign, a newer AMD Xilinx FPGA family may be worth considering even if the package is different.

When XC7VX330T Makes More Sense

The larger XC7VX415T is not automatically the better choice.

If the design comfortably fits within XC7VX330T and has sufficient resource margin, the smaller device may be adequate.

This can be especially relevant for established products where the FPGA architecture is already stable and no major feature expansion is expected.

The decision should therefore be based on actual utilization rather than logic-cell count alone.

XC7VX330T-2FFG1157I vs XC7VX415T-2FFG1157I

The key difference is straightforward: XC7VX415T provides more FPGA capacity than XC7VX330T.

Both belong to the Virtex-7 family and use the -2 speed grade and FFG1157 package class.

For a design that is approaching the resource limits of XC7VX330T, XC7VX415T is worth evaluating as a higher-capacity option.

For an existing XC7VX415T system, however, XC7VX330T should only be considered after checking the actual FPGA utilization and confirming that all required resources fit within the smaller device.