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samsung-hack:nx1-and-nx500-difference [2016/04/13 22:20] vitaliy_kiselev created |
samsung-hack:nx1-and-nx500-difference [2016/04/13 22:23] (current) vitaliy_kiselev |
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| - | Although some are under the impression that the two cameras are identical and that NX500 is just software crippled, there actually are several hardware differences that we can observe (and that suggest there might be other that we still cannot): SoC (CPU + supporting hardware like ISP, HW codecs, etc) is different and RAM is different. Both have "more" in NX1. | + | Some people think that the two cameras are identical and that NX500 is just software crippled, there actually are several hardware differences that we can observe: |
| - | ===== CPU differences ===== | + | * Unordered List Item LSI (CPU + supporting hardware like ISP, HW codecs, etc) is different |
| + | * RAM is different. | ||
| + | |||
| + | Both are more advanced in NX1. | ||
| + | |||
| + | ===== LSI differences ===== | ||
| | NX1 | NX500 | | | NX1 | NX500 | | ||
| - | | ----------------- | ----------------- | | ||
| | cma: CMA: reserved 256 MiB at 96000000 | cma: CMA: reserved 288 MiB at 94000000 | | | cma: CMA: reserved 256 MiB at 96000000 | cma: CMA: reserved 288 MiB at 94000000 | | ||
| | cma: CMA: reserved 128 MiB at 8e000000 | cma: CMA: reserved 72 MiB at 8f800000 | | | cma: CMA: reserved 128 MiB at 8e000000 | cma: CMA: reserved 72 MiB at 8f800000 | | ||
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| | VDD_ISP: 770 <--1400 mV at 1030 mV | VDD_ISP: 770 <--1400 mV at 870 mV | | | VDD_ISP: 770 <--1400 mV at 1030 mV | VDD_ISP: 770 <--1400 mV at 870 mV | | ||
| - | So, the cores seem to be identical (from OS point of view) but SoCs seem to be different with different parameters (probably related to various IP blocks in SoC). | + | Cores seem to be identical (from OS point of view) but LSI seem to be different with different parameters. Probably related to various IP blocks in SoC. |
| ===== Memory ===== | ===== Memory ===== | ||
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| NX1 has 1696 MB and NX500 has 704 MB. With the Linux OS taking ~200 MB it leaves ~1.5 GB for NX1 and 0.5 GB for NX500 which is in line with real world buffer performance. It is also possible that RAM is not running at the same speed between the two. | NX1 has 1696 MB and NX500 has 704 MB. With the Linux OS taking ~200 MB it leaves ~1.5 GB for NX1 and 0.5 GB for NX500 which is in line with real world buffer performance. It is also possible that RAM is not running at the same speed between the two. | ||
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| - | #### NX1 | ||