Dylan Patel, head of the semiconductor analysis firm SemiAnalysis, has accused AMD of enabling illegal diversion of export-controlled RFSoC chips into China, calling for the U.S. government to investigate AMD for "treason." The dispute centers on China-based Puzhi Electronic Technology, which is crowdfunding a system built on AMD's Zynq UltraScale+ XCZU47DR, a dual-use radar and signal-processing chip subject to U.S. export controls. AMD has denied selling or shipping the chips directly into China and says it investigates suspected diversion cases, but the episode is a live reminder that compliance obligations do not end at the point of sale.
The XCZU47DR is not a trivial part. It packs four general-purpose Arm cores, two Cortex-R5F real-time cores, an FPGA with 930,000 gates, DSP engines with 4,272 DSP slices, and eight 14-bit analog-to-digital converters capable of up to 5 GSPS alongside eight 14-bit digital-to-analog converters running up to 9.85 GSPS. That combination lets a single chip receive, process and generate RF signals in real time without separate data converters, which is why RFSoCs of this class end up in software-defined radios, radar, phased-array systems, satellite links and electronic test equipment — Puzhi is marketing its system to "professional engineers" and "advanced researchers in universities," even though, as Tom's Hardware notes, such systems can serve entirely different applications.
The export-control mechanics are where the story gets specific. The XCZU47DR carries a 3A001.a.14 classification under the U.S. Commerce Control List, meaning any export, re-export or transfer to a non-allied destination like China normally requires a BIS license — a license that, per Tom's Hardware's reporting, will almost certainly be denied. But a license exception permits shipments to commercial companies in Group B countries, opening a path for legitimate exports to dozens of states from which the parts could then move illegally into China. That exception, not a direct AMD sale, is the mechanism AMD is pointing to when it calls this a diversion case rather than a compliance failure on its own part.
The pricing gap is the number driving the accusation. Patel wrote on X that AMD's U.S. list price for the chip is $36,000, with volume customers paying $4,000 to $5,000, while the same part is "getting quoted $1K in China to crowdfunding campaigns." Tom's Hardware flags that the $1,000 figure is Patel's reported price rather than a publicly advertised retail offer, and separately notes that the license-exception pathway explains how Puzhi could plausibly have obtained the chips at all, but not the scale of the price gap Patel describes.
Supply constraints cut against any theory of a glut reaching China through ordinary channels. Tom's Hardware reports that lead times for the XCZU47DR at resellers including Avnet and DigiKey run 40 to 52 weeks, indicating strong demand in the U.S. and Europe even as Puzhi claims it can ship its RFSoC-based system by November 6, 2026. Xilinx introduced the third-generation Zynq UltraScale+ RFSoC family, including the XCZU47DR, in February 2019, with production status reached in 2020 — nearly six years on the market, sold to what Tom's Hardware describes as tens if not hundreds of companies across different countries, which is precisely what makes tracing the origin of Puzhi's units difficult.
AMD's own statement to Tom's Hardware stops short of confirming an active investigation into this specific case: a spokesperson said the company "investigates all suspected diversion cases and if we find any violation of law, we will report it to relevant authorities and cease all business with the company," while stressing that "this recent instance is unrelated to any direct AMD sales or shipments." Patel says AMD told him the same thing in a follow-up exchange he posted on X. What is missing from the record so far is any independent confirmation of the $1,000 quote, any named intermediary between AMD's distribution chain and Puzhi, or any BIS statement on whether an investigation has actually opened.
For teams sourcing restricted silicon or auditing their own supply chains, the operative lesson isn't about AMD specifically — it's that a legitimate license exception for allied-country resale is a known and apparently exploitable seam, and six years of broad distribution to "tens, if not hundreds" of companies is enough history for provenance tracing to become genuinely hard; if your compliance program can't reconstruct where a restricted part went after the first sale, that gap is the one an adversary — or an analyst — will find first.