Friday, June 17th 2022

AMD "Phoenix Point" Zen 4 Mobile Processor Powered Up

by
btarunr
 Discuss (30 Comments)
An engineering sample of AMD's next-generation Ryzen "Phoenix Point" mobile processor has been powered up, and made its first appearance on the Geekbench user-database. "Phoenix Point" is a monolithic silicon mobile processor built on the TSMC N5 (5 nm EUV) process, featuring "Zen 4" CPU cores, and a significantly faster iGPU based on the RDNA3 graphics architecture; along with a DDR5/LPDDR5 memory interface, and PCI-Express Gen 5.0 capability. An engineering sample with an 8-core/16-thread CPU, with the OPN code "100-000000709-23_N," hit the radar. AMD could debut Ryzen "Phoenix Point" in the first quarter of 2023, possibly with an International CES announcement.
Sources: BenchLeaks (Twitter), VideoCardz

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30 Comments on AMD "Phoenix Point" Zen 4 Mobile Processor Powered Up

#26
Taraquin
thegnomeHope you know that's a fake rumour going around for a while. Plenty of tests and PCIe 3.0 x8 is barely a bottleneck, and that's on the 3090 running over 300w. On a power constrained 150w laptop gpu the difference is literally 0. I remember seeing people run dual 3090's (XOC, so over 500w per car) on PCIe 3.0 x8 using 10th gen before Ryzen 5000 came out, and still got higher scores than rocket lake using 4.0.
Look at the numbers and links above. In some games there is no difference, in others there can be a substantial difference. The less vram you have, the more PCIe speed matters. On many 4-6GB mobile CPUs this has a large impact. On 8gb or higher vram it has less impact, on 3090 very little.

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#27
hs4
While it is easy to distribute graphic computation across many ALU on a GPU, and everyone does it without being aware of it, this is difficult to do with a computation using a CPU. The strategy of "more compute circuits, lower clock, higher processing speed at the same TDP" is always successful for GPUs, but not always for CPUs.

Increasing GPUs in mobile APUs makes everyone happy, as it reduces boost times and saves battery power for non-gaming applications (e.g., web browsing). On the other hand, increasing CPU cores beyond 12 is effective to a limited number of users, partly due to TDP limitations.
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#28
ratirt
windwhirlAnd for that, laptops with desktop CPUs already exist.
I didn't see AMD put a 12core or 16core in a laptop
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#30
ratirt
windwhirlwww.xmg.gg/en/xmg-apex-15-max/
Sure that but these are desktop processors just put in a laptop. That is not the same as a dedicated low wattage mobile CPU. The only thing it proves is, AMD's desktop CPUs can be efficient to a point these could work in a confined space as a laptop case and still be cool enough.
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