💹 Rising SDRAM and DDR Prices Make EVE the Clear Choice

26 Sep 2026 –

Introduction

In today’s embedded electronics market, every component counts — and memory costs are climbing fast. SDRAM and DDR, once considered a cheap and abundant resource, have become a major contributor to system cost and design complexity. For manufacturers seeking to balance performance with affordability, Bridgetek’s Embedded Video Engine (EVE) family offers a smarter alternative: graphics without external RAM.

🧩 The Cost Challenge of SDRAM‑Dependent Designs

Traditional graphics MCUs rely on external SDRAM or DDR to store frame buffers — two full copies of the screen image, plus fonts, icons, and other assets.

Frame Buffer approach with external SDRAM

For an 800×480 display at 24‑bit colour depth, each frame consumes nearly 1 MB of memory. Two buffers double that, before adding UI assets. This architecture drives up cost and power consumption, especially as SDRAM prices continue to rise due to global supply constraints and demand from AI and high‑performance computing sectors.

The result:

• Higher BOM cost from external memory chips
• Complex PCB layouts with wide memory buses.
• Increased power draw from constant data transfers.
• Longer development cycles due to hardware integration challenges.

⚙️ The EVE Advantage: SDRAM‑Free Design

Bridgetek’s EVE chips (EVE1 – EVE4) take a fundamentally different approach. Instead of storing entire frames, they use a line buffer to render graphics line‑by‑line.

EVE’s innovative and cost-effective line buffer approach

This means:

• No external SDRAM / DDR required — the system architecture is simpler.
• Simpler design — fewer components, smaller PCB footprint.
• Lower cost — reduced BOM and manufacturing expenses.

EVE delivers high‑quality graphics with minimal hardware overhead — a decisive advantage in cost‑sensitive applications.

📦 Internal RAM for Assets

EVE devices (EVE1 to EVE4) include up to 1 MB of internal RAM (1 MB in FT81x and BT81x, 256 kB in FT80x and BT88x), which can store assets such as fonts, logos, and images directly. Because no frame buffer consumes this space, developers can use it entirely for UI assets.

Competitors often store these assets in external SDRAM alongside their frame buffers, increasing the amount of RAM required leading to higher cost and complexity.

increasing the amount of RAM required leading to higher cost and .

EVE Devices	Internal RAM
FT800, FT801	256 kB
BT880, BT881, BT882, BT883	256 kB
FT810, FT811, FT812, FT813	1 MB
BT815, BT816	1 MB
BT817, BT818, BT817A	1 MB

 

🔋 Efficiency and Market Impact

The benefits of EVE’s external SDRAM‑free architecture extend beyond cost savings:

• Reduced component count — no RAM chips needed.
• Lower power consumption — fewer memory transactions.
• Improved reliability — fewer external parts mean fewer points of failure.
• Faster development cycles — simpler hardware (for example less complex PCB routing) accelerates time‑to‑market.

For industries like automotive, industrial control, and smart appliances, these advantages translate directly into competitive edge.

💾 Flash and Asset Management

Since RAM is volatile, assets must be reloaded after power‑up. EVE supports efficient formats for images and fonts and other assets (including compressed formats such as ASTC on the BT81x onwards), minimizing Flash usage and ensuring efficient asset storage. This reduces the need for large, expensive Flash ICs, further cutting costs.

🏁 Conclusion

As SDRAM / DDR prices continue to rise, the economics of embedded design are shifting. Bridgetek’s EVE family proves that smart architecture can outperform brute‑force hardware. By eliminating SDRAM and DDR requirements and leveraging the internal memory for assets, EVE simplifies design, reduces cost, and delivers efficient and high graphics.

In a market driven by cost, efficiency, and scalability, EVE isn’t just an alternative — it’s the clear choice.

To find out more, visit www.brtchip.com or contact marketing@brtchip.com

It’s Easy with EVE!