The reported Ryzen Z3 design pairs four Zen 6 cores with two low-power Zen 5 cores and 12 RDNA4m compute units in a 25 by 25 mm FF6 package. The article lists Ryzen Z3 Extreme at 25W optimized and Ryzen Z3 at 15W optimized, while standard Medusa Point is linked to 8 CUs. The X post says only "4c+2lp (maybe changed)" and 12CU. RDNA4m is described as a derivative of RDNA 3.5.

The limit is the reported power envelope for handheld use. The measurement is the 12-CU GPU count, and the document does not show that count sitting inside the 15W part. For the buyer, the trade is visible: fewer Zen 6c cores than standard Medusa Point and more graphics silicon. The fab faces the FF6 package as the constraint that makes the semi-custom layout plausible.

No clock number is present here. The document leaves out whether the 15W part enables all 12 CUs, what memory configuration it uses, what process node it uses, and whether the Z3 and Z3 Extreme share the same 12-CU die. Both part number and memory bandwidth are still not present.

The buyer gets a graphics-heavy handheld part, but the 15W model is not proven to keep all 12 CUs enabled. The fab is constrained by the 25 by 25 mm FF6 package, not by a published power measurement.

The document leaves out memory configuration, part number, clock speed, memory bandwidth, process node, and whether both parts share the same 12-CU die.

The design trades four Zen 6c cores for four extra RDNA4m CUs versus standard Medusa Point, but the 15W part lacks measured proof that all 12 CUs are enabled. The FF6 package sets the physical limit, while power remains the unverified constraint.