The smallest, most efficient 64-bit CPU core yet
ARM has unveiled its smallest, most efficient Cortex A-series CPU core, the Cortex-A35. Featuring 64-bit support, ARM's new Cortex-A35 core promises great things when it hits first devices by the end of the next year.
Aimed at low-cost smartphones, the new Cortex-A35 core is a direct successor of ARM's well known Cortex-A7 CPU core, but, according to ARM, consumes about 20 percent less power than the Cortex-A7, mostly due to improved design flows and micro-architectural improvements seen earlier with the Cortex-A53 core.
When compared to the Cortex-A53 design, which is similar considering that the Cortex-A53 usually acts as the "little" core in big.LITTLE configuration, the new Cortex-A35 is 25 percent smaller, consumes 32 percent less power and is 25 percent more energy efficient on the same 28nm manufacturing process.
Same as the Cortex-A53, the new Cortex-A35 core can be used as the "little" core in a big.LITTLE SoC configuration, mostly due to the implementation of the ARMV8-A instruction set. While we already seen this in earlier ARM cores, it is rather impressive that ARM managed to implement it in a smallest core so far, including other instructions like 64-bit registers, cryptography acceleration, double-precision floating-point math, and vector processing.
According to ARM, the new Cortex-A35 core has ben heavily improved compared to the Cortex-A7 CPU core and in addition to 64-bit regirsters and support for the ARMv8-A instruction set, the CPU core has been completely redesigned, with efficiency in mind, including more acurate branch prediction, more efficient instruction fetch and queuing resources, improved memory subsystem as well as better L1 and L2 cache subsystem and more.
While ARM was not ready to talk about performance, it did reveal some details, showing that the Cortex-A35 performance 16 percent better compared to the Cortex-A7 at the same 1.2GHZ frequency. Bear in mind that the Cortex-A35 is capable of reaching higher frequency of up to 2GHz, where it is up to 84 percent faster. When it comes to power consumption, ARM Cortex-A35 will be quite impressive considering its estimates at 28nm manufacturing process, which will benefit even more when it is switched to the new 16/14nm FinFET process.
According to ARM, the Cortex-A35 has been already licensed to multiple custmers with first devices expected by the end of the next year.
Source: Anandtech.com.
Aimed at low-cost smartphones, the new Cortex-A35 core is a direct successor of ARM's well known Cortex-A7 CPU core, but, according to ARM, consumes about 20 percent less power than the Cortex-A7, mostly due to improved design flows and micro-architectural improvements seen earlier with the Cortex-A53 core.
When compared to the Cortex-A53 design, which is similar considering that the Cortex-A53 usually acts as the "little" core in big.LITTLE configuration, the new Cortex-A35 is 25 percent smaller, consumes 32 percent less power and is 25 percent more energy efficient on the same 28nm manufacturing process.
Same as the Cortex-A53, the new Cortex-A35 core can be used as the "little" core in a big.LITTLE SoC configuration, mostly due to the implementation of the ARMV8-A instruction set. While we already seen this in earlier ARM cores, it is rather impressive that ARM managed to implement it in a smallest core so far, including other instructions like 64-bit registers, cryptography acceleration, double-precision floating-point math, and vector processing.
According to ARM, the new Cortex-A35 core has ben heavily improved compared to the Cortex-A7 CPU core and in addition to 64-bit regirsters and support for the ARMv8-A instruction set, the CPU core has been completely redesigned, with efficiency in mind, including more acurate branch prediction, more efficient instruction fetch and queuing resources, improved memory subsystem as well as better L1 and L2 cache subsystem and more.
While ARM was not ready to talk about performance, it did reveal some details, showing that the Cortex-A35 performance 16 percent better compared to the Cortex-A7 at the same 1.2GHZ frequency. Bear in mind that the Cortex-A35 is capable of reaching higher frequency of up to 2GHz, where it is up to 84 percent faster. When it comes to power consumption, ARM Cortex-A35 will be quite impressive considering its estimates at 28nm manufacturing process, which will benefit even more when it is switched to the new 16/14nm FinFET process.
According to ARM, the Cortex-A35 has been already licensed to multiple custmers with first devices expected by the end of the next year.
Source: Anandtech.com.
News by Luca Rocchi and Marc Büchel - German Translation by Paul Görnhardt - Italian Translation by Francesco Daghini
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