AMD “Little” Phoenix2 APU for Ryzen 7040U series has a die size of 137mm²

Published: Jun 30th 2023, 09:22 GMT   Comments

Please note that this post is tagged as a rumor.

Details on the smaller AMD Phoenix2 APU emerge

AMD Phoenix comes in two variants. 

AMD has been brewing a new APU for low-power devices. The fact that AMD might launch a smaller processor similar to its Phoenix silicon was not a secret for a long time. An unofficial name of “Little Phoenix” was mentioned as far back as June last year, but AMD did not confirm it until now.

The company recently launched its Ryzen 7040HS and 7040U series based on Zen4 architecture, the latter features four SKUs. According to the AMD website, the two models come with a smaller Phoenix CCD die measuring 137mm², which is about 23% smaller than the Phoenix die in the 7840U/7640U APU. This inadvertently confirms that there are two variants.

Twitter users @xinoassasin and @BusAlexey explain that Ryzen 7540U features two core types: Zen4 and Zen4c, the latter is supposedly a down clocked version of the Zen4. AMD could actually use both Phoenix APUs for this Ryzen SKU, since Zen4c is simply a down clocked version of the Zen4 core.

Earlier rumors suggested that “Phoenix2” might have up to 8 RDNA3 GPU cores, but as far as official specs for 7540/7440U processors stand, those should offer up to 4 CUs for the integrated Radeon 740M graphics.

AMD Ryzen 7640U and 7440U using different dies, Source: AMD

Aside from listing different die sizes, AMD did not acknowledge that there is a smaller Phoenix die. Furthermore, there are still no laptops on the market with such an APU, so it is not yet possible to confirm.

AMD Ryzen 7040U series
VideoCardz.comAMD PhoenixAMD Phoenix2
ProductRyzen 7 7840U
Ryzen 5 7640U
Ryzen 5 7540U
Ryzen 3 7440U
Process NodeTSMC 4nmTSMC 4nm
Die Size178mm²137mm²
CPU ArchitectureAMD Zen4AMD Zen4 (C) + Zen4c (c)
Cores / Threads8C / 16T (7840U)
6C / 12T (7640U)
2C+4c / 12T (7540U)
2C+2c / 8T (7440U)
Max CPU Clock5.1 GHz4.9 GHz
GPU12CU RDNA3 (Radeon 780M)
8CU RDNA3 (Radeon 760M)
4CU RDNA3 (Radeon 740M)
Max GPU Clocks2.8 GHz2.5 GHz

Source: @xinoassasin, @BusAlexey, AMD

Comment Policy
  1. Comments must be written in English and should not exceed 1000 characters.
  2. Comments deemed to be spam or solely promotional in nature will be deleted. Including a link to relevant content is permitted, but comments should be relevant to the post topic. Discussions about politics are not allowed on this website.
  3. Comments and usernames containing language or concepts that could be deemed offensive will be deleted.
  4. Comments complaining about the post subject or its source will be removed.
  5. A failure to comply with these rules will result in a warning and, in extreme cases, a ban. In addition, please note that comments that attack or harass an individual directly will result in a ban without warning.
  6. VideoCardz has never been sponsored by AMD, Intel, or NVIDIA. Users claiming otherwise will be banned.
  7. VideoCardz Moderating Team reserves the right to edit or delete any comments submitted to the site without notice.
  8. If you have any questions about the commenting policy, please let us know through the Contact Page.
Hide Comment Policy