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PCIe 6.0 announced that bandwidth doubled to 256GB/s

via:快科技     time:2019/6/19 9:07:06     readed:149

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(viaAnandTech)

In order to double the effective bandwidth, PCI-Sig implements PAM 4 (Pulse Amplitude Modulation) signaling in PCIe 6.0, instead of NRZ coding scheme, and also uses the low delay forward error correction (FEC) additional mechanism.

In addition, the operating frequencies of PCIe 6.0 are 64 GHz, while those of PCIe 4.0 and PCIe 3.0 are 16 GHz and 8 GHz, respectively.

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It must be noted that PCIe 3.0 is still popular at present, and PCIe 4.0 hardware has just begun to be listed one after another, so after the completion of PCIe 6.0 specification in 2021, the related hardware products will not be seen until 2022 at the fastest, so the road is still very long.

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