Historical CPU price drops when new CPUs released

I'm debating buying the AMD A10-7890K CPU for my new build now or waiting until the new AMD CPUs come out in late February or early March. Does anyone have historical data on how fast and how much CPU prices drop when a new CPU architecture is released?
 
Even if the prices don't drop, the value of your A10-7890K, dead-end motherboard, and DDR3 certainly will. If AMD launches Ryzen in March, you've only about 5 weeks to wait.

Pricing will depend a lot on how competitive the new parts are and how AMD chooses to market them. Pricing on old parts that are no longer current, such as the FM2 CPUs may actually go up or stay higher than good value after the launch if there is demand for them to upgrade aging platforms and supply starts to dry up.
 

rderubeis

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Mar 15, 2015
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I dont think ryzen will be better when it comes to gaming. For multitasking and encoding and rendering sure.