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AMD Carrizo Performance Mobile APU with Excavator Core Preview

AMD Carrizo Performance Mobile APU with Excavator Core Preview

AMD recently introduced the world to its latest mobile APU, Carrizo. With it, AMD promises large power savings and performances in the years ahead.

@StevenBassiriTT
Published Tue, Feb 24 2015 9:10 AM CST   |   Updated Tue, Apr 7 2020 12:33 PM CDT

Introducing AMD's Carrizo

AMD Carrizo Performance Mobile APU with Excavator Core Preview 01 | TweakTown.com
VIEW GALLERY - 12 IMAGES

At the International Solid State Circuits Conference (ISSCC), AMD announced their Carrizo mobile APU featuring the new "Excavator core", which is the first processor with full HSA 1.0 support. It will have a GPU that is different from Kaveri. There will also be a Carrizo-L, and they will be pin compatible. The Radeon GPU will be capable of supporting DX12, Mantle, and direct graphics.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 02 | TweakTown.com

Carrizo will improve on the APU by bringing the southbridge on die and will have the CPU and GPU better communicate and share memory to save power and improve performance. AMD is aiming to increase their performance per watt, something that has become a first priority for many processor manufacturers.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 03 | TweakTown.com

Full HAS 1.0 compliancy means that the GPU will be used more to increase processing efficiency. There are some things that GPUs are better at such as video editing, natural human interface, and pattern recognition. Now the GPU can help the CPU with these tasks.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 04 | TweakTown.com

Carrizo will be processed with the 28nm node and AMD has managed a 23% area reduction and they have brought in some of their GPU transistor technology for Carrizo.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 05 | TweakTown.com

AMD claims 18% leakage reduction, which allows for 10% higher frequency at the same level. AMD said that they went "back to basics" and is shifting to lower leakage APUs. In the graph above, you can see AMD has been able to reduce the leakage, without slowing down the processor.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 06 | TweakTown.com

I found AMD's new voltage adaptive operation technology interesting. AMD states that power from the motherboard isn't always the cleanest, so manufacturers add 10% extra voltage to ensure stable operation. However, now the CPU will be able to momentarily drop its frequency if it detects a voltage drop, so AMD can use a lower operating voltage, which reduces power consumption.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 07 | TweakTown.com

AMD has also added 10 AVFS silicon based sensors for voltage and frequency to accurately determine and engage optimal operating conditions across different parts in the processor.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 08 | TweakTown.com

AMD has implemented a new SOi 3 standby state which will be able to turn off IO and the PLL sections which were left powered in previous generations. This should greatly improve battery life for long term deep sleep.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 09 | TweakTown.com

AMD is hoping for huge improvements in power efficiency by at least 25x improvement, while performance increases, all by 2020.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 10 | TweakTown.com

AMD's roadmap of features is quite interesting, it seems like they are going to integrate a voltage regulator into the CPU, this should help reduce mobile per consumption.

AMD Carrizo Performance Mobile APU with Excavator Core Preview 11 | TweakTown.com

AMD's Carrizo will be a very interesting product, bringing promises of improved IPC (5%) at 40% less power and 23% less die area. Stay tuned for more!

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Steven went from a fledgling forum reader in 2003 to one of the internet's brightest tech stars by 2010. Armed with an information systems degree, a deep understanding of circuitry, and a passion for tech, Steven (handle Sin0822) enjoys sharing his deep knowledge with others. Steven details products down to the component level to highlight seldom explained, and often misunderstood architectures. Steven is also a highly decorated overclocker with several world records.

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