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VIA C7® Processor

This product is available fully ROHS-compliant.

The new VIA C7® processor is the smallest, lowest power, most efficient and most secure native x86 processor in the world. Built on the advanced VIA CoolStream™ architecture, the 'Esther'core of the VIA C7 processor is designed to extend the digital lifestyle by combining robust performance of up to 2.0GHz with ultra low power consumption and highly efficient heat dissipation.

The principal design philosophy behind the VIA C7 processor incorporates the following key objectives:

Manufactured using IBM's leading 90nm Silicon-on-Insulator (SOI) process technology, the VIA C7 processor sets new standards in integration and performance, and all within an industry-leading thermal profile, making it ideal for a wide range of next generation compact systems.

Secure by Design

The VIA C7 processor heralds an era of practical pervasive security thanks to the VIA PadLock Security Engine, the world's fastest x86 security engine in the world featuring the most comprehensive suite of tools for key cryptographic operations.

In addition to the world's best random number generator (RNG) and AES Encryption Engine in the previous processor generation, the VIA PadLock Security Engine in the VIA C7 processor adds SHA-1 and SHA-256 hashing for secure message digests, and a hardware based Montgomery Multiplier supporting key sizes up to 32K in length to accelerate public key cryptography, such as RSA™. The VIA C7 also provides NX Execute Protection, providing protection from malicious software such as worms and viruses, and is used in Microsoft® Windows® XP with SP2. Integrating security directly onto the processor die ensures speeds and efficiency many times that available in software, yet with negligible impact on processor performance.

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VIA PadLock Security Engine
  VIA C3 Nehemiah C5P VIA C7 Esther C5J Benefits
Secure Hash   Full SHA-1 &
SHA-256 5Gbps peak
Data integrity and origin authentication in data transfer
Virus Protection   NX bit Protects against worm attacks & propagation
Encryption Full AES Encryption ECB,CBC,CFB,OFB hdw modes 25Gbps peak@2GHz + RSA hardware assist (Montgomery Multiplier) +CBC/CFB-MAC/ CTR modes 20Gbps peak@2GHz •  Ultra fast, military-grade AES encryption (US government standard)
•Hardware acceleration for public key encryption
Hardware RNG 2 h/w RNGs + enhanced performance
+ feeds to SHA engine
•  On-die makes it hard to crack
•  Greater randomness
• Superior speed over software-based generation

Low Power by Design

Developed from the ground up for low power operation, the VIA C7 processor is based on the advanced VIA CoolStream™ Architecture and manufactured using IBM's state-of-the-art 90nm Silicon-on-Insulator (SOI) process, and delivers the greatest performance per watt in the business.

Capable of running up to 2.0GHz with ultra low power consumption of around 20 watts peak power and operating at an average power of less than 1 watt, the VIA C7 processor is the embodiment of cool processing and sets the standards for next generation of desktop, mobile and personal electronics systems.

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Total Design Power Max

Performance by Design

The VIA C7 processor delivers exceptional performance for all key applications, whether for work, entertainment or simply keeping in touch. Scalable up to 2.0GHz, the VIA C7 processor integrates the VIA StepAhead™ Technology Suite, an extensive array of performance-enhancing features that includes the new VIA V4 bus operating up to 800MHz, sixteen pipeline stages, advanced branch prediction, and an efficiency-enhanced 128KB full-speed exclusive L2 cache.

The VIA C7 processor also boasts breakthrough VIA TwinTurbo™ technology that allows the processor to switch between ultra low power mode to full speed operation in a single clock cycle, resulting in consistent performance with no stutters.

Enhanced digital media performance is ensured with support for SSE2 and SSE3 multimedia instructions and a full-speed Floating Point Unit (FPU), while all VIA C-Series mobile chipsets integrate hardware MPEG-2 and MPEG-4 decoding acceleration for flawless digital video playback and streaming, Voice over IP telephony and video conferencing, and much more.

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Best Performance per Watt

* All benchmarks normalized to performance/TDPmax of the VIA C7 processor @1.5GHz


Targeted at High Growth Markets

Designed for the optimal balance of performance, reliability and security, the VIA C7 processor is perfectly suited for a range of rapid-growth markets demanding those vectors, appliances that leverage the platform's winning low power, low heat, high performance and high security combination.


Digital Home
- Personal electronics such as personal video recorders (PVR), set top boxes, home theatres,
  digital audio centers, etc.
- Mini PCs
- Home server appliances


Digital Office
- Green clients
- Mini PCs
- Quiet desktop PCs
- Compact server appliances
- High density servers

  Digital World
- Public information/entertainment kiosks
- Point-of-Sales systems
- Intelligent displays
- Edge networking devices
- Hospital monitoring systems
- Municipal control & monitoring systems

Moreover, the mobile version of the VIA C7 processor, the VIA C7-M processor, is ideal for powering the next generation of thin and light notebooks that combine productivity and connectivity with a great entertainment experience.


VIA C7 image kit
Keep Safe!
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If you should have problems or questions setting up or running your VIA product, we offer comprehensive technical support here and you can find the latest device drivers, as well as helpful forums to discuss and solve your problems.

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