Sony is expected to release an updated version of its current PS4 console, which according to gaming site GiantBomb, has been codenamed Neo. This console will have a more powerful processor, graphics processing unit and higher bandwidth memory.
The original PS4 console is powered by an octa core Jaguar processor clocked at 1.6GHz, which is backed by an AMD GPU with 18 Compute Units running at 800MHz and has 8GB of GDDR5 (176GB/s). According to the rumored specifications, the PS4 NEO will have the same Jaguar CPU, but with a higher clock speed of 2.1GHz and the AMD GPU has been improved, having 36 CUs running at 911MHz, while the memory bandwidth has been increased to 218GB/s.
AMD has been working on a new Polaris 10 “Ellesmere” chip which is believed to be used in the upcoming standalone Radeon R9 480 graphics card and according to TechPowerUp, the PS4 NEO GPU has similar specs to AMD’s Polaris 10. However, AMD refuses to comment on this matter and it already said in the past that its Polaris GPU that will be released in 2016 is focusing on “console-class gaming on a thin-and-light notebook.”
At the Game Developers Conference in San Francisco, in March, a product roadmap suggested that AMD will bring Vega, which has nothing to do with Polaris, as it’s expected to feature 4096 GCN 4.0 stream processors and second-generation High Bandwidth Memory (HBM2).
Since the launch of the PS4, Sony has updated its internals, but AMD has remained unchanged, remaining based on the 28nm manufacturing process, so if the Polaris GPU would be used, it would definitely boost the performance of the PS4 NEO. While Polaris has already been confirmed to be based on a 14nm process, if the Jaguar architecture will support a boost up to 2GHz, this means that it will require a 66 percent increase in TDP and will generate too much heat. This would be a big problem that Sony would need to fix, and the best solution is to move to a 14nm process.
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