The new VIA Nano is based on VIA's Isaiah architecture, and provides up to four times the performance of the existing VIA C7 processors while maintaining pin compatibility with existing C7 designs.

The Nano is the first 64bit, out of order speculative superscalar processor from VIA, and it was designed to deliver high performance to notebook and desktop designs with low power consumption; having enough performance for demanding tasks such as Blu-Ray playback.

• Based on Fujitsu's advanced 65nm process
• aggressive power and thermal management
• 21mm x 21mm nanoBGA2 package
• idle power as low as 0.1W
• Full 64bit instruction set
• speculative out of order execution
• micro and macro fusion
• sophisticated branch prediction
• high speed floating point unit
• 64KB L1 code cache + 64KB L1 data cache
• 1MB exclusive L2 cache with 16 way associativity
• C6 power state support
• "PadLock" encryption engine

Initially two sku's will be available, however five sku's were announced today:

• L2100 @ 1.8GHz, 25W TDP
• L2200 @ 1.6GHz, 17W TDP
• U2400 @ 1.3GHz,, 8W TDP
• U2500 @ 1.2GHz, 6.8W TDP
• U2300 @ 1.0GHz, 5W TDP

All five SKU's are based on an 800MHz FSB