AMD Renoir APU Appears With 8 CUs Clocked to 1.75 GHz

A benchmark run of AMD's forthcoming Renoir APU (opens in new tab) has appeared in the SiSoftware database. Well-known hardware leaker @TUM_APISAK provided a screenshot of the details on Twitter (opens in new tab).

Renoir was initially speculated to come with Navi graphics, but a few Linux patches (opens in new tab) dispelled that rumor. Although the 7nm APUs are likely to make use of the Zen 2 microarchitecture, they are expected to use Vega graphics. Navi probably won't make itself into APUs until the next generation of chips.

We got word of the first batch of Renoir benchmarks (opens in new tab) in October. There were three different chips that featured iGPUs (integrated graphics processing units) with clock speeds (opens in new tab) between 1.1 GHz and 1.5 GHz.

AMD Renoir — (Image credit: TUM_APISAK/Twitter)

Today's Renoir sample seemingly features eight Compute Units (CUs), which works out to a total of 512 Stream Processors (SPs). Assuming that Renoir does employ Vega, then this chip should carry the Radeon Vega 8 branding.

The iGPU reportedly ran up to a clock speed (opens in new tab)of 1.75 GHz. It's unknown if it was running at the reported speed during the entire benchmark or is 1.75 GHz is the peak boost speed. Either way, it's pretty impressive, since you would normally see such high clocks in discrete graphics cards (opens in new tab), not on an APU with integrated graphics.

Like the previous Renoir chips, the one spotted today also appears to work on a "Celadon" motherboard (opens in new tab). This is the second time that we're seeing that codename, so we suspect it's for the Renoir platform. The continued use of DDR4 memory (opens in new tab) implies that Renoir might not support LPDDR4x memory (opens in new tab), as previously suggested.

AMD will be launching fresh 7nm Ryzen mobile chips early next year. AIDA64 recently added support for Renoir (opens in new tab), suggesting that the new APUs might be arriving soon.

Zhiye Liu is a Freelance News Writer at Tom’s Hardware US. Although he loves everything that’s hardware, he has a soft spot for CPUs, GPUs, and RAM.

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4 Comments Comment from the forums

hannibal

Maybe Vega can run with lesses memory bandwide? And Navi needs at least ddr5 to give enough memory speed?
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MasterMadBones

hannibal said:
Maybe Vega can run with lesses memory bandwide? And Navi needs at least ddr5 to give enough memory speed?
Navi has been shown to perform better than Vega with less bandwidth and less power. My guess is that Navi has undergone some last minute changes while AMD was transitioning from GF's 7nm to TSMC's and that it was not possible to implement that new architecture in time for Renoir. The "Vega" GPU inside Renoir is likely a more refined version of the architecture found in Radeon VII, which was in fact different from 14nm Vega in other areas than the manufacturing node.

To add to the speculation, AMD still has the "25x20" goal, which meant that AMD would make its mobile APUs 25x more efficient than Kaveri by 2020. With the way Renoir looks right now, they will likely not make that target. That makes me wonder about a possible second APU release near the end of 2020, with Navi and possibly Zen 3. That would also make AMD's launch schedule more similar to Intel's, in which mobile CPUs are released before their desktop counterparts. Being one node or architecture behind has a clearer impact on mobile than it does on desktop, because efficiency is more important.
Reply
vinitskr

admin said:
A benchmark run of AMD's forthcoming Renoir APU has appeared in the SiSoftware database.

AMD Renoir APU Pops Up With 8 CUs Clocked up to 1.75 GHz : Read more
What about the actual CPU ? Will AMD finally launch APUs with 6c/12t and 8c/16t configs ?
Reply
hannibal

That depends on how amd will handle next gen apus. Do They make chiplet apus, or monolith apus. Is chiplet, They will use same cpus as with Ryzens. If monolith, it is quite possible that They will remain 4 cpu core with integrated gpu core design. Most Office computers don`t need more than 2 to 4 cores and if someone needs more They will use Ryzen with diskrete gpu. Maybe even GPUs that has been put directly on motherboard...
But if They go for chiplet design, it may be more economical to use same cpu chiplet as with Ryzens than create new 4 core part. Just use very much cut down versions in 2 and 4 core apus...
But there has not been congrete info about it yet.
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