The chip contains high-performance Cortex-A9 CPUs and a low-performance ARM 7 CPU. The idea is that when you are not doing CPU-intensive tasks only the ARM 7 processor will be active and the Cortex-A9s will be powered down. The benefit of this design is you get better battery life since you aren't using as much power when the chip is idle and you still have powerful CPUs available if you need them.
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nkindberg
Question: Is that diagram actually of a Tegra 2 chip?
From what I was reading Tegra 2 has 2 high-performance A9s cores and a low-performance ARM 7 core whereas Tegra 3 has 4 high-performance A9s and 1 low-performance A9 that it uses when CPU load is low.
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dyc
@nkindberg Doing some quick searching, I do believe that is a Tegra 2 chip, and it matches your description.
Also, there are specifications for the Tegra 4 chip available. It has a similar 4+1 CPU organization as the Tegra 3 described above, and also 72 GPU cores, and architecture specialized for computational photography (efficient image processing).
The chip contains high-performance Cortex-A9 CPUs and a low-performance ARM 7 CPU. The idea is that when you are not doing CPU-intensive tasks only the ARM 7 processor will be active and the Cortex-A9s will be powered down. The benefit of this design is you get better battery life since you aren't using as much power when the chip is idle and you still have powerful CPUs available if you need them.
This comment was marked helpful 0 times.
Question: Is that diagram actually of a Tegra 2 chip?
From what I was reading Tegra 2 has 2 high-performance A9s cores and a low-performance ARM 7 core whereas Tegra 3 has 4 high-performance A9s and 1 low-performance A9 that it uses when CPU load is low.
This comment was marked helpful 0 times.
@nkindberg Doing some quick searching, I do believe that is a Tegra 2 chip, and it matches your description.
Also, there are specifications for the Tegra 4 chip available. It has a similar 4+1 CPU organization as the Tegra 3 described above, and also 72 GPU cores, and architecture specialized for computational photography (efficient image processing).
This comment was marked helpful 0 times.