Snapdragon battery guru 8086/10/2023 In the past the GPU shared a bus with the ISP and video engines, but in order to feed the beast that had to change. Qualcomm claims a 20% reduction in power consumption compared to Adreno 330 (Snapdragon 800) when running the T-Rex HD test from GFXBench at 1080p (onscreen).įor the first time, the GPU now gets its own direct path to the SoC's memory interface. The GPU runs at a max frequency of 600MHz. The architecture should be more efficient than Adreno 3xx as well, making better use of the underlying hardware. There are other architectural improvements including better texturing performance and faster depth rejection. Adreno 420 includes support for Adaptive Scalable Texture Compression (ASTC), a new texture compression first introduced by ARM in 2011. In typical Qualcomm fashion, it isn't disclosing any material details on the underlying Adreno 420 architecture so we'll have to guess based on what the benchmarks tell us. The S805 features Qualcomm's Adreno 420 GPU with full support for OpenGL ES 3.1 (with some extensions), OpenCL 1.2 and Direct3D feature level 11_2 (with a hardware tessellation engine). As is the case with all multi-core Krait SoCs, each CPU core can be power gated, clock gated and even clocked independently of the rest. All four cores sit behind a shared 2MB L2 cache. The 8% increase in max frequency comes from tuning at the circuit level, there's no impact to IPC. As always, Qualcomm advertises customer-friendly frequencies rounded up to the nearest 100MHz, the actual max frequency of each Krait 450 core is 2.65GHz (compared to 2.45GHz in Krait 400). These cores can now run at up to 2.7GHz compared to 2.5GHz in the Snapdragon 801 (Krait 400). It features four Krait 450 cores, each a mild tweak of the Krait 400 design used in the S800/801. The Snapdragon 805 was not only designed to drive CPU performance higher but also be the launch vehicle for Qualcomm's brand new Adreno 4xx GPU architecture. It would be the grand finale in Krait's lineage, which started back in 2012 with Krait 200 and MSM8960 and saw iterative improvements over the years. Priced somewhat above the current Snapdragon 800/801, the 805 would be the last 32-bit high-end SoC from Qualcomm. Last year Qualcomm announced a new tier in its high end SoC roadmap with the Snapdragon 805.
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