Radeon RX 5700 Series GPU's support CrossFire in 'Explicit' multi-GPU mode when running a DX12 or Vulkan game that supports multiple GPU's. The older 'implicit' mode used by legacy DX9/11/OpenGL titles is not supported.
"The hybrid approach (doing fixed function acceleration for a single node of the bounded volume hierarchy (BVH) tree and using a shader unit to schedule the processing) addresses the issues with solely hardware based and/or solely software based solutions. Flexibility is preserved since the shader unit can still control the overall calculation and can bypass the fixed function hardware where needed and still get the performance advantage of the fixed function hardware. In addition, by utilizing the texture processor infrastructure, large buffers for ray storage and BVH caching are eliminated that are typically required in a hardware raytracing solution as the existing vector general purpose register (VGPRs) and texture cache can be used in its place, which substantially saves area and complexity of the hardware solution."
We haven't announced any pre-order plans - global launch is on 7/7.AMD is launching five new processor SKUs this July, including the 12-core/24-thread Ryzen 9 3900X, the 8-core/16-thread Ryzen 7 3800X and 3700X, and the 6-core/12-thread Ryzen 5 3600X and 3600. Prices over previous-generation products remain flat wherever applicable. The 3700X is being launched at the same $329.99 MSRP as the 2700X, the 3600X at a slightly higher $249.99 compared to the $239.99 the 2600X launched at; and the 3600 aims to be the sub-$200 king at the same $199.99 price as the 2600. The 3800X is being launched as a premium 8-core option at $399.99, and the 3900X can be yours for $499.99. We expect most online retailers to mark these prices up by 5-10 percent as they normally do.
Reddit user @dprairie_AMDHi all,
Friendly reminder that just because someone writes it doesn't mean it is true.... We will be expanding AMD.com sales to more countries, so we expect the 50th anniversary edition will also be available in: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, and the United Kingdom. Sorry we are not offering global availability at this point. We hear you on the desire. The team is focused on expanding into more regions/countries while making sure we can fully support customers.