nRF52832 support the high throughput mode (2 Mbps) introduced in Bluetooth 5. You can test it out using the BLE ATT_MTU Throughput Example in nRF5 SDK v13.0.0 1.alpha.
Well, Bluetooth 5 features is only supported by S132/S140 SoftDevice v5.0.0 1.alpha, which again is only supported by SDK 13. You could use the v5.0.0 softdevice with an older SDK, but you would have to do a lot of API changes yourself to get it working.
S132 softdevice v5.0.0 have different API than for instance S132 v3.0.0, currently supported by SDK 12.2. To get examples from SDK 12.2 to work with the latest S132 v5.0.0 softdevice, you will have to change all softdevice calls (functions prefixed with sd_) to use the functions from S132 v5.0.0 instead of the functions from S132 v3.0.0. This is not something I would recommend you to do, as there are a lot of pitfalls. The Bluetooth 5 features are considered experimental, and you should not use it for anything other than tesing at this point, so it should not be a problem using SDK 13 alpha.
