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Staro 13.08.2020., 16:20   #3732
The Exiled
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Intel’s 11th Gen Core Tiger Lake SoC detailed: SuperFin, Willow Cove and Xe-LP
Citiraj:
Tiger Lake processor being presented by Intel is a four core mobile-series processor aimed at the 15 W target market where premium ultra-portable notebooks exist. Inside is four cores based on Intel’s Willow Cove architecture, the next generation after Sunny Cove, which we saw in Ice Lake. The four cores will be paired with 96 Execution Units of the new Xe-LP graphics architecture, and Tiger Lake will be Intel’s first product with Xe-LP. Tiger Lake also includes on-silicon support for technologies such as Thunderbolt 4, USB 4, PCIe 4.0, LPDDR5, as well as dedicated IP for total memory encryption and an updated Gaussian Neural Accelerator (to help with noise cancellation and similar functionality). Tiger Lake uses Intel’s 10nm ‘SuperFin’ manufacturing process technology. As part of this launch, Intel has replaced the 10+ nomenclature and instead renamed it to 10nm SuperFin, or 10SF. This is in part due to some of the updates Intel has made to its 10nm process in order to enable some of the features in Tiger Lake. This means that the new cores in Tiger Lake a built that for any given power or voltage, they will run at a higher frequency. Or for any given frequency, Tiger Lake will require a lower voltage. Where Ice Lake essentially topped out at 4.0 GHz within that 15 W window, Tiger Lake will start pushing numbers back up to 5.0 GHz.
Citiraj:
Intel has quoted that it went after frequency rather than IPC, as +20% frequency is more akin to a node change in performance, whereas chasing IPC in this product would not have produced the same change. As it stands, we predict a small single digit uplift in IPC. We will have to wait until the next generation product to see IPC increase again. As a final thought – one of the first comments made by Intel as part of our briefings was that the Tiger Lake design is going to be scalable, from 10 watts to 65 watts. The current processor we know about today is a four core processor at 15 watts. We’ve already surmised that Intel is preparing an eight core variant, with double the L3 cache, which we suspect to go up to that 65 W mark - however there is a question of where that product would end up. Traditional mobile processors tend to have a ceiling of 45-54 W TDP, and the 65 W space is usually reserved for desktop / socketed processors. Intel previously launched 65 W versions of its Broadwell mobile CPU on the desktop in 2015, and I wonder if we might see something similar here, which would enable Willow Cove, 10SF, and integrated Xe-LP on the desktop.
Izvor: AnandTech

Zadnje izmijenjeno od: The Exiled. 13.08.2020. u 17:05.
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