AMD "Phoenix Point" Zen 4 Mobile Processor Powered Up

[ARF]

Hope 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.

PCIe 3.0 x8 is a bottleneck.

PCIe 4.0 vs. PCIe 3.0 GPU Benchmark | TechSpot

 

[Taraquin]

Hope 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.

 

[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.

 

[ratirt]

And for that, laptops with desktop CPUs already exist.

I didn't see AMD put a 12core or 16core in a laptop

 

[windwhirl]

I didn't see AMD put a 12core or 16core in a laptop

XMG APEX 15 MAX | gaming laptop

The powerfully dominant XMG APEX 15 MAX packs fast ray-tracing graphics cards up to NVIDIA GeForce RTX 3070 and Ryzen 5000 eight-core processors from AMD

www.xmg.gg

 

[ratirt]

XMG APEX 15 MAX | gaming laptop

The powerfully dominant XMG APEX 15 MAX packs fast ray-tracing graphics cards up to NVIDIA GeForce RTX 3070 and Ryzen 5000 eight-core processors from AMD

www.xmg.gg

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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.