Does it have that FPGA built in because I don't see that on the spec sheet.
https://ark.intel.com/products/139940/Intel-Xeon-Gold-6138P-Processor-27_5M-Cache-2_00-GHz?wapkw=xeon+6138p

The chip I linked has a Xeon 6138P linked with a Arria 10 GX 1150.

I don't even know what the model numbers are or where you can get one if at all.

OK the internal code name for this processor is Purley.



https://www.intel.com/content/www/us/en/design/products-and-solutions/processors-and-chipsets/purley/intel-xeon-scalable-processors.html

Here is where you can request a sample or try to buy one.

https://www.intel.com/content/www/us/en/design/products-and-solutions/processors-and-chipsets/purley/sample-and-buy.html