AMD Ryzen 3 7320U Mendocino rears its head on UserBenchmark with 12.7% gains in multi-core over average Ryzen 3 5300U and terrible iGPU performance
Back during Computex 2022, AMD announced the Mendocino APU for low-end "everyday" laptops with a major focus on all-day battery life. We have seen AYA announce the NEO AIR Plus, which is the first Mendocino-powered gaming handheld. Now, we are getting to see a Mendocino APU listed on UserBenchmark (ahem!).
UserBenchmark lists an AMD Ryzen 3 7320U APU featuring four cores and eight threads with a base clock of 2.4 GHz and an average boost up to 4.1 GHz. The UserBenchmark entry also confirms that AMD Mendocino, with an estimated die size of 100 mm2, will be based on the FT6 socket. The PC seems to be equipped with 4 GB of dual-channel LPDDR5-5500 RAM and a 256 GB Kingston PCIe Gen 4 x4 M.2 NVMe SSD.
The Ryzen 3 7320U Mendocino APU comes with integrated RDNA 2 graphics, but the UserBenchmark listing does not shed much light into the iGPU's configuration. That being said, we do know that Mendocino's RDNA 2 iGPU will feature one workgroup processor (WGP) that corresponds to 2 compute units (CUs) or 128 stream processors (SPs), which is way less than the 8 CU configuration offered by the Steam Deck's Van Gogh APU.
Mendocino's RDNA 2 iGPU also offers one RB+ (render backend). For those not in the know, each of RDNA 2's redesigned RB+ can process eight 32-bit color pixels per cycle and helps in better variable rate shading (VRS) performance in combination with the Rasterization pipeline. Mendocino's iGPU is also capable of supporting Video Core Next (VCN) 3.0 with AV1 and VP9 decode.
The said UserBenchmark run awards the Ryzen 3 7320U CPU with a 66.4% performance but rates the iGPU as "terrible" with just a 5.63% score. The memory and storage subsystem scores do not seem to indicate any major hiccups.
The CPU score of the Ryzen 3 7320U presents an interesting paradigm. According to the benchmark listing, the Ryzen 3 7320U musters a single-core score of 116. The average Ryzen 3 5300U in the database has a single-core score of 98.2. Similarly, the 8-core score for the Ryzen 3 7320U is shown to be 697 while the corresponding average score for the Ryzen 3 5300U is 618, which indicates a 12.7% increase in multi-core performance with Mendocino.
The doubtful veracity of UserBenchmark aside, the transition to 6 nm of the new Zen 2 cores can be expected to offer tangible improvements to boost clocks and overall multi-core performance. We see that getting reflected in this leaked benchmark. Nevertheless, a more holistic picture would be available only when Mendocino-powered devices actually hit the market.